Subaru Vehicle Models Subaru WRX 2002-2007
Subaru Vehicle Models Subaru WRX 2002-2007 Torque Specifications
Complete Subaru Vehicle Models Subaru WRX 2002-2007 torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.
Updated
Important Information
Safety guidelines and reference information for proper torque application
Safety First
- Always verify torque specifications with your vehicle's factory service manual
- Use properly calibrated torque wrenches
- Replace all torque-to-yield (TTY) bolts - they are single-use only
- When in doubt, consult a professional mechanic
Quick Reference Guide
Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083
Common Torque Patterns
Star Pattern
Used for wheels and other circular bolt patterns
Cross Pattern
Used for gaskets and cover plates
Sequential Pattern
Used for head bolts and other critical components
Common Mistakes to Avoid
Common Mistakes to Avoid
Over-tightening
Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.
Prevention:
Always use a calibrated torque wrench and follow specifications exactly.
Incorrect Torque Sequence
Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.
Prevention:
Follow the manufacturer's specified torque sequence pattern.
Dirty Threads
Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.
Prevention:
Clean and inspect all threads before assembly. Use new thread locker if specified.
Reusing TTY Bolts
Torque-to-yield bolts are designed to stretch and must not be reused.
Prevention:
Always replace TTY bolts with new ones. They are single-use only.
Dry vs. Lubricated
Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.
Prevention:
Check if specs are for dry or lubricated threads. Use specified lubricant when required.
Recommended Tools
Recommended Tools
Torque Wrench (1/4" Drive)
Range: 2-25 ft-lbs
Small fasteners, delicate components
Torque Wrench (3/8" Drive)
Range: 10-100 ft-lbs
Most common automotive fasteners
Torque Wrench (1/2" Drive)
Range: 30-250 ft-lbs
Large fasteners, wheels
Angle Gauge
Torque-to-yield (TTY) bolts
Torque Wrench Care
- Calibrate annually or after 5,000 clicks
- Store at lowest setting
- Keep clean and lubricated
Search Specifications
Search by component name, bolt size, or description
Type to search through torque specifications. Use arrow keys to navigate results. Press Enter to select a result.
Torque Calculator
Convert between different torque units
2.0l H4 Engine
Torque specifications for 2.0L-H4 Engine
2.0l H4 Engine
Torque specifications for 2.0L-H4 Engine
Engine Block
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
1. 22 ft-lbs (29 N·m)
2. 90°
Important Notes
Ensure bolts are tightened in the specified sequence to prevent warping or damage to the cylinder head.
2 Main Bearing Bolts
M10 x 1.25
2
Main Bearing Bolts
M10 x 1.25
Torque Specification
51 ft-lbs (69 N·m)
Important Notes
Ensure proper alignment of the crankshaft before tightening.
3 Oil Pan Bolts
M6 x 1.0
3
Oil Pan Bolts
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
Crankshaft
1 Flywheel Bolts
M12 x 1.25
1
Flywheel Bolts
M12 x 1.25
Torque Specification
76 ft-lbs (103 N·m)
Important Notes
Ensure the flywheel is properly aligned with the crankshaft before tightening.
2 Crankshaft Pulley Bolt
M14 x 1.5
2
Crankshaft Pulley Bolt
M14 x 1.5
Torque Specification
108 ft-lbs (147 N·m)
Important Notes
Use a crankshaft pulley holder tool to prevent the crankshaft from rotating during tightening.
3 Connecting Rod Nuts
M8 x 1.0
3
Connecting Rod Nuts
M8 x 1.0
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper orientation of the connecting rods before tightening.
Turbocharger
1 Turbocharger Mounting Bolts
M10 x 1.25
1
Turbocharger Mounting Bolts
M10 x 1.25
Torque Specification
22 ft-lbs (29 N·m)
Important Notes
Ensure the turbocharger is properly aligned with the exhaust manifold before tightening.
2 Turbocharger Oil Feed Line Bolts
M6 x 1.0
2
Turbocharger Oil Feed Line Bolts
M6 x 1.0
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure the oil feed line is properly seated before tightening.
3 Turbocharger Coolant Line Bolts
M6 x 1.0
3
Turbocharger Coolant Line Bolts
M6 x 1.0
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure the coolant line is properly seated before tightening.
2.0l H4 Turbo Engine
Torque specifications for 2.0L-H4-TURBO Engine
2.0l H4 Turbo Engine
Torque specifications for 2.0L-H4-TURBO Engine
Engine Block
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
1. 22 ft-lbs (29 N·m)
2. 90°
Important Notes
Ensure bolts are tightened in the specified sequence to prevent warping or damage to the cylinder head.
2 Main Bearing Bolts
M10 x 1.25
2
Main Bearing Bolts
M10 x 1.25
Torque Specification
51 ft-lbs (69 N·m)
Important Notes
Ensure proper alignment of the crankshaft before tightening.
3 Oil Pan Bolts
M6 x 1.0
3
Oil Pan Bolts
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
Crankshaft
1 Flywheel Bolts
M12 x 1.25
1
Flywheel Bolts
M12 x 1.25
Torque Specification
76 ft-lbs (103 N·m)
Important Notes
Ensure the flywheel is properly aligned with the crankshaft before tightening.
2 Crankshaft Pulley Bolt
M14 x 1.5
2
Crankshaft Pulley Bolt
M14 x 1.5
Torque Specification
108 ft-lbs (147 N·m)
Important Notes
Use a crankshaft pulley holder tool to prevent the crankshaft from rotating during tightening.
3 Connecting Rod Nuts
M8 x 1.0
3
Connecting Rod Nuts
M8 x 1.0
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper orientation of the connecting rods before tightening.
Turbocharger
1 Turbocharger Mounting Bolts
M10 x 1.25
1
Turbocharger Mounting Bolts
M10 x 1.25
Torque Specification
22 ft-lbs (29 N·m)
Important Notes
Ensure the turbocharger is properly aligned with the exhaust manifold before tightening.
2 Turbocharger Oil Feed Line Bolts
M6 x 1.0
2
Turbocharger Oil Feed Line Bolts
M6 x 1.0
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure the oil feed line is properly seated before tightening.
3 Turbocharger Coolant Line Bolts
M6 x 1.0
3
Turbocharger Coolant Line Bolts
M6 x 1.0
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure the coolant line is properly seated before tightening.
2.5l H4 Engine
Torque specifications for 2.5L-H4 Engine
2.5l H4 Engine
Torque specifications for 2.5L-H4 Engine
Cylinder Head
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Follow the manufacturer-recommended torque sequence for proper sealing.
2 Valve Cover Bolts
M6 x 1.0
2
Valve Cover Bolts
M6 x 1.0
Torque Specification
3.5 ft-lbs (4.7 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
Crankshaft And Connecting Rods
1 Main Bearing Bolts
M10 x 1.25
1
Main Bearing Bolts
M10 x 1.25
Torque Specification
54.5 ft-lbs (74 N·m)
Important Notes
Ensure crankshaft is properly aligned before tightening.
2 Connecting Rod Nuts
M8 x 1.25
2
Connecting Rod Nuts
M8 x 1.25
Torque Specification
27 ft-lbs (36.5 N·m)
Important Notes
Ensure connecting rod bearings are properly seated.
Turbocharger
1 Turbocharger Mounting Bolts
M10 x 1.25
1
Turbocharger Mounting Bolts
M10 x 1.25
Torque Specification
25.5 ft-lbs (34.5 N·m)
Important Notes
Ensure gaskets are properly aligned before tightening.
2 Turbocharger Oil Feed Line Bolts
M8 x 1.25
2
Turbocharger Oil Feed Line Bolts
M8 x 1.25
Torque Specification
16 ft-lbs (21.7 N·m)
Important Notes
Ensure fittings are properly aligned before tightening.
Intake And Exhaust
1 Intake Manifold Bolts
M8 x 1.25
1
Intake Manifold Bolts
M8 x 1.25
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Follow the manufacturer-recommended torque sequence.
2 Exhaust Manifold Bolts
M8 x 1.25
2
Exhaust Manifold Bolts
M8 x 1.25
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Ensure gaskets are properly aligned before tightening.
2.5l H4 Turbo Engine
Torque specifications for 2.5L-H4-TURBO Engine
2.5l H4 Turbo Engine
Torque specifications for 2.5L-H4-TURBO Engine
Cylinder Head
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Follow the manufacturer-recommended torque sequence for proper sealing.
2 Valve Cover Bolts
M6 x 1.0
2
Valve Cover Bolts
M6 x 1.0
Torque Specification
3.5 ft-lbs (4.7 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
Crankshaft And Connecting Rods
1 Main Bearing Bolts
M10 x 1.25
1
Main Bearing Bolts
M10 x 1.25
Torque Specification
54.5 ft-lbs (74 N·m)
Important Notes
Ensure crankshaft is properly aligned before tightening.
2 Connecting Rod Nuts
M8 x 1.25
2
Connecting Rod Nuts
M8 x 1.25
Torque Specification
27 ft-lbs (36.5 N·m)
Important Notes
Ensure connecting rod bearings are properly seated.
Turbocharger
1 Turbocharger Mounting Bolts
M10 x 1.25
1
Turbocharger Mounting Bolts
M10 x 1.25
Torque Specification
25.5 ft-lbs (34.5 N·m)
Important Notes
Ensure gaskets are properly aligned before tightening.
2 Turbocharger Oil Feed Line Bolts
M8 x 1.25
2
Turbocharger Oil Feed Line Bolts
M8 x 1.25
Torque Specification
16 ft-lbs (21.7 N·m)
Important Notes
Ensure fittings are properly aligned before tightening.
Intake And Exhaust
1 Intake Manifold Bolts
M8 x 1.25
1
Intake Manifold Bolts
M8 x 1.25
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Follow the manufacturer-recommended torque sequence.
2 Exhaust Manifold Bolts
M8 x 1.25
2
Exhaust Manifold Bolts
M8 x 1.25
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Ensure gaskets are properly aligned before tightening.
5eat Transmission
Torque specifications for 5eat Transmission
5eat Transmission
Torque specifications for 5eat Transmission
Transmission Mounting
1 Transmission Mounting Bolts
M14 x 1.5
1
Transmission Mounting Bolts
M14 x 1.5
Torque Specification
46 ft-lbs (63 N·m)
Important Notes
Proper torque ensures the transmission is securely attached to the engine block and chassis.
Transmission Oil System
1 Transmission Oil Pan Bolts
M10 x 1.25
1
Transmission Oil Pan Bolts
M10 x 1.25
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Proper torque ensures the oil pan is securely attached to the transmission case.
2 Transmission Drain and Fill Plugs
M12 x 1.5
2
Transmission Drain and Fill Plugs
M12 x 1.5
Torque Specification
22 ft-lbs (29 N·m)
Important Notes
Proper torque ensures a leak-free seal.
3 Transmission Fluid Drain/Fill Plug
M14 x 1.5
3
Transmission Fluid Drain/Fill Plug
M14 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Proper torque ensures a leak-free seal.
Transmission Pan Gasket
1 Transmission Pan Gasket Bolts
M10 x 1.25
1
Transmission Pan Gasket Bolts
M10 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value. Proper torque ensures the pan gasket is securely attached to the transmission case.
Valve Body and Solenoid Pack
1 Valve Body Bolts
M12 x 1.5
1
Valve Body Bolts
M12 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value. Proper torque ensures the valve body is securely attached to the transmission case.
2 Solenoid Pack Bolts
M10 x 1.25
2
Solenoid Pack Bolts
M10 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value. Proper torque ensures the solenoid pack is securely attached to the transmission case.
Torque Converter
1 Torque Converter Bolts
M14 x 1.5
1
Torque Converter Bolts
M14 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Estimated value. Proper torque ensures the torque converter is securely attached to the transmission case.
Body
Torque specifications for Body
Body
Torque specifications for Body
Suspension
1 Strut/Shock Absorber Mounting Bolts
M10 x 1.25
1
Strut/Shock Absorber Mounting Bolts
M10 x 1.25
Torque Specification
52 ft-lbs (71 N·m)
Important Notes
Torque range provided: 46-58 ft-lbs (63-79 N·m). Midpoint value used for clarity.
2 Control Arm Bolts
M12 x 1.5
2
Control Arm Bolts
M12 x 1.5
Torque Specification
55 ft-lbs (74 N·m)
Important Notes
Torque range provided: 51-58 ft-lbs (69-79 N·m). Midpoint value used for clarity.
Steering
1 Steering Gear/Rack Bolts
M14 x 1.5
1
Steering Gear/Rack Bolts
M14 x 1.5
Torque Specification
64 ft-lbs (87 N·m)
Important Notes
Torque range provided: 58-69 ft-lbs (79-94 N·m). Midpoint value used for clarity.
Drivetrain
1 Transmission Mounting Bolts
M10 x 1.25
1
Transmission Mounting Bolts
M10 x 1.25
Torque Specification
52 ft-lbs (71 N·m)
Important Notes
Torque range provided: 46-58 ft-lbs (63-79 N·m). Midpoint value used for clarity.
Fuel System
1 Fuel Tank Strap Bolts
M8 x 1.25
1
Fuel Tank Strap Bolts
M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Torque range provided: 22-29 ft-lbs (29-39 N·m). Midpoint value used for clarity.
Body Panels
1 Body Panel Bolts (e.g., hood, trunk, doors)
M6 x 1.0
1
Body Panel Bolts (e.g., hood, trunk, doors)
M6 x 1.0
Torque Specification
13 ft-lbs (17 N·m)
Important Notes
Estimated torque value based on general standards for M6 bolts. Consult the vehicle's service manual for precise values.
2 Bumper Mounting Bolts
M8 x 1.25
2
Bumper Mounting Bolts
M8 x 1.25
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Estimated torque value based on general standards for M8 bolts. Consult the vehicle's service manual for precise values.
3 Fender Liner Bolts
M6 x 1.0
3
Fender Liner Bolts
M6 x 1.0
Torque Specification
13 ft-lbs (17 N·m)
Important Notes
Estimated torque value based on general standards for M6 bolts. Consult the vehicle's service manual for precise values.
4 Door Hinge Bolts
M8 x 1.25
4
Door Hinge Bolts
M8 x 1.25
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Estimated torque value based on general standards for M8 bolts. Consult the vehicle's service manual for precise values.
Brakes
Torque specifications for Brakes
Brakes
Torque specifications for Brakes
Brake Caliper
1 Brake Caliper Bolts
M10 x 1.25
1
Brake Caliper Bolts
M10 x 1.25
Torque Specification
63.5 ft-lbs (86 N·m)
Important Notes
Torque value is the midpoint of the provided range (58-69 ft-lbs / 79-94 N·m).
2 Brake Caliper Mounting Bracket Bolts
M8 x 1.25
2
Brake Caliper Mounting Bracket Bolts
M8 x 1.25
Torque Specification
52 ft-lbs (71 N·m)
Important Notes
Torque value is the midpoint of the provided range (46-58 ft-lbs / 63-79 N·m).
Brake Rotor Drum
1 Brake Disc/Drum Retaining Bolts
M10 x 1.25
1
Brake Disc/Drum Retaining Bolts
M10 x 1.25
Torque Specification
63.5 ft-lbs (86 N·m)
Important Notes
Torque value is the midpoint of the provided range (58-69 ft-lbs / 79-94 N·m).
2 Brake Rotor Mounting Bolts
M8 x 1.25
2
Brake Rotor Mounting Bolts
M8 x 1.25
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Torque value is the midpoint of the provided range (20-25 ft-lbs / 27-34 N·m). Estimated based on similar components.
Wheel Assembly
1 Wheel Lug Nuts
M12 x 1.5
1
Wheel Lug Nuts
M12 x 1.5
Torque Specification
79.5 ft-lbs (108 N·m)
Important Notes
Torque value is the midpoint of the provided range (72-87 ft-lbs / 98-118 N·m).
Master Cylinder
1 Master Cylinder Mounting Bolts
M6 x 1.0
1
Master Cylinder Mounting Bolts
M6 x 1.0
Torque Specification
17.5 ft-lbs (23.5 N·m)
Important Notes
Torque value is the midpoint of the provided range (15-20 ft-lbs / 20-27 N·m). Estimated based on similar components.
Brake Hose
1 Brake Hose Banjo Bolts
M10 x 1.0
1
Brake Hose Banjo Bolts
M10 x 1.0
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Torque value is the midpoint of the provided range (20-25 ft-lbs / 27-34 N·m). Estimated based on similar components.
Abs System
1 ABS Sensor Mounting Bolts
M6 x 1.0
1
ABS Sensor Mounting Bolts
M6 x 1.0
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Torque value is the midpoint of the provided range (10-15 ft-lbs / 14-20 N·m). Estimated based on similar components.
Drivetrain
Torque specifications for Drivetrain
Drivetrain
Torque specifications for Drivetrain
Engine and Transmission Mounting
1 Transmission Mounting Bolts
M12 x 1.5
1
Transmission Mounting Bolts
M12 x 1.5
Torque Specification
46 ft-lbs (63 N·m)
2 Transfer Case Mounting Bolts
M12 x 1.5
2
Transfer Case Mounting Bolts
M12 x 1.5
Torque Specification
46 ft-lbs (63 N·m)
Transmission and Driveshaft
1 Transmission Bellhousing Bolts
M10 x 1.25
1
Transmission Bellhousing Bolts
M10 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
2 Propeller/Drive Shaft Bolts
M12 x 1.5
2
Propeller/Drive Shaft Bolts
M12 x 1.5
Torque Specification
46 ft-lbs (63 N·m)
Differential and Axle
1 Rear Differential Mounting Bolts
M12 x 1.5
1
Rear Differential Mounting Bolts
M12 x 1.5
Torque Specification
51 ft-lbs (69 N·m)
2 Front Differential Mounting Bolts
M12 x 1.5
2
Front Differential Mounting Bolts
M12 x 1.5
Torque Specification
51 ft-lbs (69 N·m)
3 Drive Axle/Half Shaft Bolts
M12 x 1.5
3
Drive Axle/Half Shaft Bolts
M12 x 1.5
Torque Specification
51 ft-lbs (69 N·m)
4 CV Joint/Axle Nut
M20 x 1.5
4
CV Joint/Axle Nut
M20 x 1.5
Torque Specification
137 ft-lbs (186 N·m)
Clutch and Flywheel
1 Clutch Pressure Plate Bolts
M8 x 1.25
1
Clutch Pressure Plate Bolts
M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
2 Flywheel Bolts
M12 x 1.5
2
Flywheel Bolts
M12 x 1.5
Torque Specification
76 ft-lbs (103 N·m)
Fluid Drain and Fill
1 Transmission Oil Pan Bolts
M8 x 1.25
1
Transmission Oil Pan Bolts
M8 x 1.25
Torque Specification
6 ft-lbs (8 N·m)
2 Transmission Drain and Fill Plugs
M12 x 1.5
2
Transmission Drain and Fill Plugs
M12 x 1.5
Torque Specification
22 ft-lbs (29 N·m)
3 Differential Drain/Fill Plug
M12 x 1.5
3
Differential Drain/Fill Plug
M12 x 1.5
Torque Specification
43 ft-lbs (58 N·m)
4 Transfer Case Drain/Fill Plug
M12 x 1.5
4
Transfer Case Drain/Fill Plug
M12 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Electrical
Torque specifications for Electrical
Electrical
Torque specifications for Electrical
Alternator And Starter Motor
1 Alternator Mounting Bolts
M12 x 1.5
1
Alternator Mounting Bolts
M12 x 1.5
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
2 Starter Motor Mounting Bolts
M12 x 1.5
2
Starter Motor Mounting Bolts
M12 x 1.5
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
Battery Terminals
1 Battery Terminal Nuts
M8 x 1.25
1
Battery Terminal Nuts
M8 x 1.25
Torque Specification
6 ft-lbs (8 N·m)
Ignition Coil And Fuel Pump
1 Ignition Coil Mounting Bolts
M10 x 1.5
1
Ignition Coil Mounting Bolts
M10 x 1.5
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value based on industry standards.
2 Fuel Pump Electrical Connector Bolts
M6 x 1.0
2
Fuel Pump Electrical Connector Bolts
M6 x 1.0
Torque Specification
7.5 ft-lbs (10 N·m)
Important Notes
Estimated value based on industry standards.
A/C Compressor
1 A/C Compressor Electrical Connector Bolts
M6 x 1.0
1
A/C Compressor Electrical Connector Bolts
M6 x 1.0
Torque Specification
7.5 ft-lbs (10 N·m)
Important Notes
Estimated value based on industry standards.
Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensors
Torque specifications for Emissions_sensors
Exhaust Manifold Headers
1 Exhaust Manifold/Headers Bolts
M10 x 1.5
1
Exhaust Manifold/Headers Bolts
M10 x 1.5
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Use a crisscross torque sequence to ensure even pressure.
2 Exhaust Manifold/Headers to Cylinder Head Bolts
M8 x 1.25
2
Exhaust Manifold/Headers to Cylinder Head Bolts
M8 x 1.25
Torque Specification
25.5 ft-lbs (34 N·m)
Important Notes
Use a crisscross torque sequence to ensure a proper seal.
Exhaust Pipe System
1 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M10 x 1.5
1
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M10 x 1.5
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Use a crisscross torque sequence to ensure even pressure.
2 Catalytic Converter to Exhaust Pipe Bolts
M8 x 1.25
2
Catalytic Converter to Exhaust Pipe Bolts
M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the catalytic converter is properly aligned before tightening.
Emissions Sensors
1 Oxygen (O2) Sensor Mounting
M12 x 1.25
1
Oxygen (O2) Sensor Mounting
M12 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure the sensor is properly seated before tightening.
2 Downstream O2 Sensor Mounting
M12 x 1.25
2
Downstream O2 Sensor Mounting
M12 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure the sensor is properly seated before tightening.
Egr System
1 EGR Valve Bolts
M6 x 1.0
1
EGR Valve Bolts
M6 x 1.0
Torque Specification
16.5 ft-lbs (22 N·m)
Important Notes
Ensure the EGR valve is properly aligned before tightening.
Catalytic Converter Mounting
1 Catalytic Converter Mounting Brackets
M8 x 1.25
1
Catalytic Converter Mounting Brackets
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure the catalytic converter is properly aligned before tightening.
Exhaust
Torque specifications for Exhaust
Exhaust
Torque specifications for Exhaust
Exhaust Manifold and Headers
1 Exhaust Manifold/Headers to Engine Block Bolts
M12 x 1.5
1
Exhaust Manifold/Headers to Engine Block Bolts
M12 x 1.5
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Estimated average torque value from the given range.
2 Exhaust Manifold/Headers to Cylinder Head Bolts
M10 x 1.25
2
Exhaust Manifold/Headers to Cylinder Head Bolts
M10 x 1.25
Torque Specification
25.5 ft-lbs (34.5 N·m)
Important Notes
Estimated average torque value from the given range.
Exhaust Pipes and Flanges
1 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M12 x 1.5
1
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M12 x 1.5
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Estimated average torque value from the given range.
2 Exhaust Pipe Flange Bolts
M10 x 1.25
2
Exhaust Pipe Flange Bolts
M10 x 1.25
Torque Specification
27.5 ft-lbs (37.5 N·m)
Important Notes
Estimated average torque value from the given range.
Catalytic Converter and Muffler
1 Catalytic Converter to Exhaust Pipe Bolts
M8 x 1.25
1
Catalytic Converter to Exhaust Pipe Bolts
M8 x 1.25
Torque Specification
16 ft-lbs (21.5 N·m)
Important Notes
Estimated average torque value from the given range.
2 Muffler to Exhaust Pipe Bolts
M10 x 1.25
2
Muffler to Exhaust Pipe Bolts
M10 x 1.25
Torque Specification
25.5 ft-lbs (34.5 N·m)
Important Notes
Estimated average torque value from the given range.
Oxygen Sensors and Heat Shields
1 Oxygen Sensor Bolts
M6 x 1
1
Oxygen Sensor Bolts
M6 x 1
Torque Specification
17.5 ft-lbs (23.5 N·m)
Important Notes
Estimated average torque value from the given range.
2 Heat Shield Bolts
M6 x 1
2
Heat Shield Bolts
M6 x 1
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated average torque value from the given range.
Exhaust System Mounting
1 Exhaust System Mounting Bolts
M10 x 1.25
1
Exhaust System Mounting Bolts
M10 x 1.25
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated average torque value from the given range.
Fuel
Torque specifications for Fuel
Fuel
Torque specifications for Fuel
Fuel Rail
1 Fuel Rail Bolts
M8 x 1.25
1
Fuel Rail Bolts
M8 x 1.25
Torque Specification
16.5 ft-lbs (22.4 N·m)
Important Notes
Apply torque in a crisscross sequence to ensure even pressure.
2 Fuel Pressure Regulator Bolts
M6 x 1.0
2
Fuel Pressure Regulator Bolts
M6 x 1.0
Torque Specification
10 ft-lbs (13.6 N·m)
Important Notes
Estimated value based on similar M6 size bolts.
Fuel Injector
1 Fuel Injector Bolts
M6 x 1.0
1
Fuel Injector Bolts
M6 x 1.0
Torque Specification
11 ft-lbs (14.9 N·m)
Important Notes
Ensure seals are properly seated before tightening.
2 Fuel Injector Rail Bolts
M8 x 1.25
2
Fuel Injector Rail Bolts
M8 x 1.25
Torque Specification
16 ft-lbs (21.7 N·m)
Important Notes
Apply torque in a crisscross sequence to avoid warping.
Fuel Pump
1 Fuel Pump Mounting Bolts
M6 x 1.0
1
Fuel Pump Mounting Bolts
M6 x 1.0
Torque Specification
8 ft-lbs (10.8 N·m)
Important Notes
Ensure the pump is seated correctly before tightening.
2 High-Pressure Fuel Pump Mounting Bolts
M8 x 1.25
2
High-Pressure Fuel Pump Mounting Bolts
M8 x 1.25
Torque Specification
16 ft-lbs (21.7 N·m)
Important Notes
Apply torque in a crisscross sequence to ensure even pressure.
Fuel Tank
1 Fuel Tank Strap Bolts
M10 x 1.5
1
Fuel Tank Strap Bolts
M10 x 1.5
Torque Specification
25.5 ft-lbs (34.6 N·m)
Important Notes
Ensure the tank is properly aligned before tightening.
2 Fuel Filler Neck Bolts
M6 x 1.0
2
Fuel Filler Neck Bolts
M6 x 1.0
Torque Specification
7.5 ft-lbs (10.2 N·m)
Important Notes
Ensure the filler neck is properly seated before tightening.
3 Fuel Tank Sender Unit Mounting Bolts
M6 x 1.0
3
Fuel Tank Sender Unit Mounting Bolts
M6 x 1.0
Torque Specification
7.5 ft-lbs (10.2 N·m)
Important Notes
Ensure the sender unit is properly seated before tightening.
Fuel Filter
1 Fuel Filter Bolt/Nut
M10 x 1.5
1
Fuel Filter Bolt/Nut
M10 x 1.5
Torque Specification
25.5 ft-lbs (34.6 N·m)
Important Notes
Ensure the filter is properly aligned before tightening.
Fuel Line
1 Fuel Line Flare Nut or Banjo Bolt
M12 x 1.5
1
Fuel Line Flare Nut or Banjo Bolt
M12 x 1.5
Torque Specification
16 ft-lbs (21.7 N·m)
Important Notes
Ensure the sealing washers are properly seated before tightening.
Hvac
Torque specifications for Hvac
Hvac
Torque specifications for Hvac
Ac Compressor
1 A/C Compressor Mounting Bolts
M10 x 1.5
1
A/C Compressor Mounting Bolts
M10 x 1.5
Torque Specification
27 ft-lbs (37 N·m)
Important Notes
Torque value is an estimate based on standard M10 bolts. Always follow the manufacturer’s recommendation if available.
Ac Lines
1 A/C Line Fittings
M8 x 1.0
1
A/C Line Fittings
M8 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Torque value is an estimate based on standard M8 bolts. Always follow the manufacturer’s recommendation if available.
Evaporator Core
1 Evaporator Core Housing Bolts
M6 x 1.0
1
Evaporator Core Housing Bolts
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Torque value is an estimate based on standard M6 bolts. Always follow the manufacturer’s recommendation if available.
Heater Core
1 Heater Core Inlet/Outlet Fittings
M8 x 1.0
1
Heater Core Inlet/Outlet Fittings
M8 x 1.0
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Torque value is an estimate based on standard M8 bolts. Always follow the manufacturer’s recommendation if available.
Blower Motor
1 Blower Motor Mounting Bolts
M6 x 1.0
1
Blower Motor Mounting Bolts
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Torque value is an estimate based on standard M6 bolts. Always follow the manufacturer’s recommendation if available.
Expansion Valve
1 Expansion Valve Bolts
M6 x 1.0
1
Expansion Valve Bolts
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Torque value is an estimate based on standard M6 bolts. Always follow the manufacturer’s recommendation if available.
Suspension
Torque specifications for Suspension
Suspension
Torque specifications for Suspension
Front Suspension
1 Strut/Shock Absorber Mounting Bolts
M14 x 1.5
1
Strut/Shock Absorber Mounting Bolts
M14 x 1.5
Torque Specification
52 ft-lbs (71 N·m)
Important Notes
Torque value is an average of the specified range.
2 Control Arm Bolts
M16 x 1.5
2
Control Arm Bolts
M16 x 1.5
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Torque value is an average of the specified range.
3 Ball Joint Nut
M12 x 1.25
3
Ball Joint Nut
M12 x 1.25
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Torque value is an average of the specified range.
4 Tie Rod End Nut
M10 x 1.25
4
Tie Rod End Nut
M10 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Torque value is an average of the specified range.
5 Sway Bar Link Nut
M8 x 1.25
5
Sway Bar Link Nut
M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Torque value is an average of the specified range.
Upper Control Arm
1 Upper Control Arm Bushing Bolts
M10 x 1.25
1
Upper Control Arm Bushing Bolts
M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated torque value based on industry standards.
Lower Control Arm
1 Lower Control Arm Bolts
M14 x 1.5
1
Lower Control Arm Bolts
M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated torque value based on industry standards.
Steering Gear
1 Steering Gear Mounting Bolts
M16 x 1.5
1
Steering Gear Mounting Bolts
M16 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated torque value based on industry standards.
Troubleshooting Guide
Common issues, diagnostic steps, and prevention guidelines
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
Loose Components
Symptoms:
- Rattling or vibration noises
- Visible movement in components
- Uneven panel gaps
Solutions:
- Clean threads and mounting surfaces
- Replace damaged fasteners
- Apply proper torque in sequence
- Use thread locker if specified
Stripped Fasteners
Symptoms:
- Unable to achieve proper torque
- Fastener spins freely
- Visible thread damage
Solutions:
- Use thread repair kit if appropriate
- Install thread insert (HeliCoil)
- Replace component if threaded hole is damaged
- Upgrade to higher grade fastener if recommended
Overtightened Components
Symptoms:
- Cracked or deformed parts
- Broken fasteners
- Compressed gaskets or seals
Solutions:
- Replace damaged components
- Use new fasteners
- Follow proper torque sequence
- Verify correct torque specifications
Diagnostic Steps
Visual inspection, torque verification, thread assessment
Diagnostic Steps
Visual inspection, torque verification, thread assessment
1
Visual Inspection
Inspect the affected area for any visible signs of damage or wear
- Check for cracks or deformation
- Look for signs of excessive wear
- Verify proper fastener installation
2
Torque Verification
Verify the torque applied to the fasteners
- Check the torque wrench calibration
- Verify the torque specification
- Compare the applied torque to the specification
3
Thread Assessment
Assess the condition of the threads
- Check for signs of thread damage
- Verify the thread type and size
- Check for proper thread engagement
Prevention Guidelines
Best practices, maintenance tips, tool care
Prevention Guidelines
Best practices, maintenance tips, tool care
Best Practices
- Always follow the recommended torque specification
- Use the correct type and size of fasteners
- Verify the torque wrench calibration regularly
Maintenance Tips
- Regularly inspect the affected area for signs of wear or damage
- Replace damaged or worn-out components promptly
- Keep the work area clean and organized
Tool Care
- Regularly clean and maintain the torque wrench
- Store the torque wrench in a dry and secure location
- Verify the torque wrench calibration before each use
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What IS the torque specification for the front brake caliper mounting bolts on a 2002-2007 Subaru WRX?
Q1
What IS the torque specification for the front brake caliper mounting bolts on a 2002-2007 Subaru WRX?
76 ft-lbs (103 Nm)
Q2 What IS the proper tightening sequence for the cylinder head bolts on a 2004 Subaru WRX STI?
Q2
What IS the proper tightening sequence for the cylinder head bolts on a 2004 Subaru WRX STI?
Tighten the bolts in three stages: 30 ft-lbs (41 Nm), 60 ft-lbs (81 Nm), and finally 90 ft-lbs (122 Nm) + 90 degrees.
Q3 What type of torque wrench IS recommended for tightening suspension bolts on a 2007 Subaru WRX?
Q3
What type of torque wrench IS recommended for tightening suspension bolts on a 2007 Subaru WRX?
Use a click-type torque wrench that IS calibrated specifically for automotive applications.
Q4 Can I use an impact wrench to tighten wheel lug nuts on my 2003 Subaru WRX?
Q4
Can I use an impact wrench to tighten wheel lug nuts on my 2003 Subaru WRX?
No, impact wrenches should not be used to tighten wheel lug nuts. Overtightening can damage the threads or break the bolts.
Q5 Where can I find the torque specifications for all the bolts on my 2006 Subaru WRX?
Q5
Where can I find the torque specifications for all the bolts on my 2006 Subaru WRX?
Refer to the Subaru Factory Service Manual for comprehensive torque specifications.
Environmental Considerations
Temperature, humidity, and seasonal effects on torque specifications
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
Temperature can significantly impact torque values and fastener behavior
Cold Weather
Effects:
- Increased material brittleness
- Higher torque required due to thread contraction
- Reduced thread lubricant effectiveness
Recommendations:
- Allow components to warm to room temperature when possible
- Consider using winter-grade thread lubricants
- Check torque values more frequently during winter months
Hot Weather
Effects:
- Thermal expansion of components
- Decreased friction in threads
- Accelerated lubricant breakdown
Recommendations:
- Check torque when components are at normal operating temperature
- Use temperature-resistant thread lockers
- Consider re-torquing after heat cycles
Humidity and Corrosion
Covers: Rust Prevention, Salt Exposure, Moisture Control
Humidity and Corrosion
Covers: Rust Prevention, Salt Exposure, Moisture Control
Moisture and corrosion can affect fastener integrity and torque values
High Humidity
Effects:
- Accelerated corrosion formation
- Reduced friction coefficient
- Potential thread seizing
Prevention:
- Use corrosion-resistant fasteners
- Apply appropriate anti-seize compounds
- Maintain proper protective coatings
Salt Exposure
Effects:
- Rapid corrosion development
- Thread damage
- Seized fasteners
Prevention:
- Regular underbody washing
- Use of sacrificial anodes where appropriate
- Application of protective coatings
Seasonal Maintenance
Spring, Summer, Fall, and Winter maintenance schedules
Seasonal Maintenance
Spring, Summer, Fall, and Winter maintenance schedules
Spring
- Inspect for winter damage
- Clean and protect exposed fasteners
- Check torque on critical components
Summer
- Monitor heat-affected components
- Check expansion-related loosening
- Inspect cooling system mounts
Fall
- Prepare for winter conditions
- Apply corrosion protection
- Verify all fasteners are properly torqued
Winter
- More frequent inspection of critical fasteners
- Check for salt damage
- Monitor suspension component torque
Related Resources
Tools, service procedures, and technical bulletins
Recommended Tools
Digital Torque Wrench (10-100 Nm)
Essential for tightening fasteners to precise torque specifications, preventing damage and ensuring proper assembly. This range IS suitable for many applications on the WRX.
- Digital display for accurate readings
- Audible alarm when target torque IS reached
- Multiple units (Nm, ft-lb, in-lb)
- Reversible ratcheting mechanism
Service Procedures
Engine Cylinder Head Bolt Torque Procedure
Critical procedure for proper engine assembly, ensuring a secure and leak-free seal.
- Clean threads on cylinder head bolts and in block.
- Apply a light coat of high-temperature thread locker to the threads of the bolts. (Torque specs included)
- Tighten the bolts in sequence, following the specified pattern.
- Double-check the torque of all bolts to ensure accuracy.
Suspension Control Arm Bolt Torque Procedure
Essential for ensuring proper suspension geometry and handling characteristics.
- Raise the vehicle and support it securely.
- Remove the wheel to access the suspension components.
- Tighten the bolts to the specified torque values, following the correct tightening sequence.
- Double-check the torque of all bolts to ensure proper installation.
Technical Service Bulletins
Engine Coolant Leak at Water Pump
2007-04-20Addresses an issue with potential coolant leaks from the water pump, providing torque specifications for the water pump bolts.
2002-2007 WRX
Resolution: Inspect water pump; replace or tighten bolts to specified torque (76Nm, 56 ft-lbs).
Front Suspension Noise
2006-08-25Outlines a condition where excessive noise IS present in the front suspension, providing torque specifications for the strut top bolts.
2002-2006 WRX
Resolution: Inspect suspension components; torque strut top bolts to specified value (37 Nm, 27 ft-lbs).
Legal Disclaimer
Important information about using this content
Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
General Information
The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.
Warranty & Liability
The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.
We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
Intellectual Property
All content, including text, images, and specifications, is protected by copyright and other intellectual property laws. Any unauthorized use or reproduction is prohibited.
About the Author
Expert automotive knowledge and experience
'/%3E%3Cpath d='M60 30a20 20 0 1 1 0 40 20 20 0 0 1 0-40zm0 45c16.5 0 30 7.5 30 16.8V100H30v-8.2c0-9.3 13.5-16.8 30-16.8z' fill='%23404040'/%3E%3C/svg%3E)
ASE
15+ Years
Experience
500+ Guides
Guides
50+ Makes
Vehicles
1000+ Solutions
Solutions
Diagnostic
Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.
Repair
Expert in both traditional mechanical repairs and modern vehicle systems.
Additional Expertise
Documentation
Created over 500 detailed repair guides and technical documents.
Training
Conducted technical training sessions and contributed to repair databases.
Certifications & Research
Certifications
- ASE Master Technician Certification
- Advanced Diagnostic Specialist
- Hybrid/Electric Vehicle Systems
- Performance Tuning Expert
Research & Community
Actively researches emerging technologies and contributes to automotive forums.