Subaru Vehicle Models Subaru Outback 2015-2019 Torque Specifications
Subaru Vehicle Models Subaru Outback 2015-2019

Subaru Vehicle Models Subaru Outback 2015-2019 Torque Specifications

Complete Subaru Vehicle Models Subaru Outback 2015-2019 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

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

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

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

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

Torque Calculator

Convert between different torque units

2.5l H4 Engine

Torque specifications for 2.5L-H4 Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 26 ft-lbs (35 N·m) 2. 90°
Important Notes
Follow the specified torque sequence to ensure even clamping force.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
3.7 ft-lbs (5 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
51 ft-lbs (69 N·m)
Important Notes
Follow the specified torque sequence to ensure proper bearing alignment.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
34 ft-lbs (46 N·m)
Important Notes
Ensure the connecting rod bearings are properly seated before tightening.
3

Flywheel Bolts

M12 x 1.5
Torque Specification
71 ft-lbs (96 N·m)
Important Notes
Ensure the flywheel is properly aligned before tightening.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Ensure the tensioner is properly aligned before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
43 ft-lbs (58 N·m)
Important Notes
Ensure the camshaft sprocket is properly aligned before tightening.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Follow the specified torque sequence to ensure proper sealing.
2

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Follow the specified torque sequence to ensure proper sealing.

Oil System

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Follow the specified torque sequence to ensure proper sealing.
2

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the drain plug gasket is in good condition before tightening.

3.6l H6 Engine

Torque specifications for 3.6L-H6 Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 26 ft-lbs (35 N·m) 2. 90°
Important Notes
Follow the specified torque sequence to ensure even clamping force.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
3.7 ft-lbs (5 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
51 ft-lbs (69 N·m)
Important Notes
Follow the specified torque sequence to ensure even clamping force.
2

Connecting Rod Nuts

M8 x 1.0
Torque Specification
34 ft-lbs (46 N·m)
Important Notes
Ensure the connecting rod bearings are properly seated before tightening.

Timing System

1

Camshaft Sprocket Bolt

M12 x 1.25
Torque Specification
43 ft-lbs (58 N·m)
Important Notes
Ensure the camshaft is properly aligned before tightening.
2

Timing Belt Tensioner Bolt

M10 x 1.25
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Ensure the tensioner is properly aligned before tightening.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Follow the specified torque sequence to ensure even clamping force.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.

Oil System

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
2

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Replace the crush washer to ensure a proper seal.

Body

Torque specifications for Body

Suspension And Steering

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
89 ft-lbs (121 N·m)
Important Notes
Critical for safety and structural integrity. Torque in a star pattern.
2

Strut/Shock Absorber Mounting Bolts

M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensures proper suspension function and alignment.
3

Control Arm Bolts

M14 x 1.5
Torque Specification
64 ft-lbs (87 N·m)
Important Notes
Ensures stability and alignment of the suspension.
4

Ball Joint Nut

M12 x 1.25
Torque Specification
51 ft-lbs (69 N·m)
Important Notes
Ensures safe steering and suspension operation.
5

Tie Rod End Nut

M10 x 1.25
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Ensures precise steering control and alignment.
6

Sway Bar Link Nut

M8 x 1.25
Torque Specification
27 ft-lbs (37 N·m)
Important Notes
Ensures stability during cornering and reduces body roll.
7

Steering Gear/Rack Bolts

M12 x 1.25
Torque Specification
51 ft-lbs (69 N·m)
Important Notes
Ensures safe and accurate steering.

Fuel System

1

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensures the fuel tank remains securely mounted.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensures a secure connection and prevents fuel leaks.

Electrical System

1

Battery Terminal Nuts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensures a reliable electrical connection and prevents corrosion.

Body Panels

1

Body Panel Bolts (e.g., fender, door hinges, hood, trunk)

M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value. Ensures panels are securely attached without over-tightening.
2

Door Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensures proper door alignment and operation.
3

Bumper Mounting Bolts

M8 x 1.25
Torque Specification
21 ft-lbs (28 N·m)
Important Notes
Ensures the bumper remains securely attached.
4

Spoiler/Wing Mounting Bolts

M6 x 1.0
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Ensures the spoiler remains securely attached.

Interior

1

Seat Mounting Bolts

M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensures passenger safety and prevents seat movement.
2

Interior Trim Fasteners (e.g., dashboard, console)

M5 x 0.8
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensures trim components remain securely attached.

Roof Rack

1

Roof Rack Mounting Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensures the roof rack remains securely attached.

Brakes

Torque specifications for Brakes

Brake Caliper

1

Brake Caliper Bolts

M12 x 1.5
Torque Specification
79 ft-lbs (107 N·m)
Important Notes
These bolts secure the brake caliper to the mounting bracket. Ensure proper alignment during installation.
2

Brake Caliper Mounting Bracket Bolts

M12 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
These bolts attach the caliper bracket to the steering knuckle or axle. Ensure proper alignment of the brake pads and rotor.

Brake Rotor

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
These bolts hold the brake rotor or drum to the hub. Ensure the rotor is seated properly before tightening.

Brake Hydraulics

1

Brake Hose Banjo Bolt

M10 x 1.0
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
This bolt connects the brake hose to the caliper. Use new sealing washers to prevent leaks.
2

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These bolts secure the master cylinder to the brake booster. Ensure proper alignment with the brake booster pushrod.
3

Brake Booster Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These bolts secure the brake booster to the firewall. Ensure proper alignment with the brake pedal assembly.

Brake Pedal

1

Brake Pedal Bracket Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These bolts secure the brake pedal assembly to the firewall. Ensure proper alignment with the master cylinder pushrod.

Abs System

1

ABS Sensor Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
These bolts secure the ABS sensor to the steering knuckle or axle. Ensure the sensor is properly seated before tightening.

Wheel Assembly

1

Wheel Lug Nuts

M12 x 1.25
Torque Specification
89 ft-lbs (121 N·m)
Important Notes
These nuts secure the wheel to the hub. Always use a star pattern for tightening to ensure even pressure.

Drivetrain

Torque specifications for Drivetrain

Flywheel

1

Flywheel Bolts

M10 x 1.25
Torque Specification
71 ft-lbs (96 N·m)
Important Notes
Ensure bolts are tightened in a star pattern to evenly distribute torque.

Transmission

1

Transmission Mounting Bolts

M8 x 1.25
Torque Specification
47 ft-lbs (63 N·m)
Important Notes
Ensure mounting surfaces are clean and free of debris.
2

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Use a crisscross pattern to ensure even sealing.
3

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Ensure plugs are clean and threads are undamaged.

Drive Axles

1

Drive Axle/Half Shaft Bolts

M10 x 1.25
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Ensure bolts are tightened evenly to prevent misalignment.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
152 ft-lbs (206 N·m)
Important Notes
Use a torque wrench with a high-capacity adapter.

Propeller Shaft

1

Propeller/Drive Shaft Bolts

M8 x 1.25
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Tighten bolts in a star pattern to ensure even torque distribution.

Differential

1

Differential Mounting Bolts

M8 x 1.25
Torque Specification
47 ft-lbs (63 N·m)
Important Notes
Ensure mounting surfaces are clean and free of debris.
2

Differential Drain/Fill Plug

M12 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Ensure plugs are clean and threads are undamaged.
3

Rear Differential Pinion Flange Bolts

M8 x 1.25
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Tighten bolts in a star pattern to ensure even torque distribution.
4

Rear Differential Cover Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Use a crisscross pattern to ensure even sealing.

Transfer Case

1

Transfer Case Mounting Bolts

M8 x 1.25
Torque Specification
47 ft-lbs (63 N·m)
Important Notes
Ensure mounting surfaces are clean and free of debris.
2

Transfer Case Drain/Fill Plug

M12 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Ensure plugs are clean and threads are undamaged.

Electrical

Torque specifications for Electrical

Starter Motor

1

Starter Motor Mounting Bolts

M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure proper alignment with the engine block before tightening.

Alternator

1

Alternator Mounting Bolts

M10 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure proper belt tension after tightening.

Battery

1

Battery Terminal Nuts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Avoid over-tightening to prevent damage to the terminals.

Ignition System

1

Ignition Coil Bolt

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Ensure the coil is properly seated before tightening.

Ac System

1

A/C Compressor Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper belt tension after tightening.
2

A/C Line Fittings

M10 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure fittings are clean and free of debris before tightening.

Grounding Points

1

Grounding Points Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Estimated value based on similar grounding components.

Fuse Box

1

Fuse Box Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Estimated value based on similar electrical components.

Ecu

1

ECU Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Estimated value based on similar electronic components.

Wiring Harness

1

Wiring Harness Clips/Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Estimated value based on similar wiring harness components.

Headlights

1

Headlight Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Estimated value based on similar lighting components.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust Manifold And Headers

1

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.

Exhaust Pipe And Catalytic Converter

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure proper alignment before tightening.
2

Catalytic Converter to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure proper alignment before tightening.
3

Catalytic Converter Heat Shield Bolts

M6 x 1.0
Torque Specification
8.5 ft-lbs (11.5 N·m)
Important Notes
Estimated value based on typical heat shield bolt torque. Ensure heat shield is properly aligned.

Emissions Control Components

1

EGR Valve Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper alignment before tightening.
2

Oxygen Sensor (Lambda Sensor)

M18 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on typical oxygen sensor torque. Ensure proper sealing to prevent exhaust leaks.
3

Exhaust Gas Temperature Sensor Bolts

M6 x 1.0
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated value based on typical sensor bolt torque. Ensure proper alignment and sealing.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold Headers

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.

Exhaust Pipe Connections

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure gaskets are properly seated before tightening.
2

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure gaskets are properly seated before tightening.
3

Muffler to Exhaust Pipe Bolts

M10 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure gaskets are properly seated before tightening.

Heat Shields

1

Exhaust Heat Shield Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Over-tightening may damage the heat shield or exhaust components.

Exhaust Hangers

1

Exhaust Hanger Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure hangers are properly aligned before tightening.

Oxygen Sensor

1

Oxygen Sensor

M18 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure the sensor is properly seated before tightening.

Exhaust Flanges

1

Exhaust Flange Bolts

M10 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure gaskets are properly seated before tightening.

Fuel

Torque specifications for Fuel

Fuel Delivery

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure injectors are properly seated before tightening.
3

Fuel Pressure Regulator Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on similar M6 bolts in the fuel system.

Fuel Storage

1

Fuel Pump Mounting Bolts

M8 x 1.25
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Ensure the fuel pump is properly seated in the tank before tightening.
2

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure the fuel tank is properly aligned before tightening.
3

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensure the filler neck is properly aligned with the fuel tank.
4

Fuel Tank Sender Unit Bolts

M6 x 1.0
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Estimated value based on similar M6 bolts in the fuel system.

Fuel Filtration

1

Fuel Filter Bolt/Nut

M8 x 1.25
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Ensure the fuel filter is properly seated in the housing.

Fuel Lines

1

Fuel Line Fittings

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar M8 fittings in the fuel system.

Fuel Cap

1

Fuel Cap

N/A
Torque Specification
N/A
Important Notes
Hand-tighten only. Do not over-tighten.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute load.

Ac Lines

1

A/C Line Fittings

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Use a torque wrench to avoid over-tightening, which can damage O-rings.

Evaporator

1

Evaporator Core Housing Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Estimated value based on similar HVAC housing bolts. Ensure even tightening to avoid warping the housing.

Blower Motor

1

Blower Motor Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Estimated value based on similar blower motor mounting bolts.

Heater Core

1

Heater Core Inlet/Outlet Fittings

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar coolant fittings.

Condenser

1

Condenser Mounting Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute load.

Control Panel

1

HVAC Control Panel Mounting Screws

M4 x 0.7
Torque Specification
0.58 ft-lbs (0.8 N·m)
Important Notes
Estimated value based on similar dashboard mounting screws.

Suspension

Torque specifications for Suspension

Strut Shock Absorber

1

Strut/Shock Absorber Mounting Bolts

M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure bolts are tightened evenly to avoid misalignment.
2

Strut Tower Mounting Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value based on similar components. Ensure proper alignment before tightening.

Control Arm

1

Control Arm Bolts

M12 x 1.75
Torque Specification
64 ft-lbs (87 N·m)
Important Notes
Ensure the control arm is properly aligned before tightening.
2

Ball Joint Nut

M10 x 1.25
Torque Specification
51 ft-lbs (69 N·m)
Important Notes
Ensure the ball joint is properly seated before tightening.

Steering

1

Tie Rod End Nut

M8 x 1.25
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Ensure the tie rod end is properly aligned with the steering knuckle.
2

Steering Gear/Rack Bolts

M10 x 1.5
Torque Specification
51 ft-lbs (69 N·m)
Important Notes
Ensure the steering rack is properly aligned with the subframe.

Sway Bar

1

Sway Bar Link Nut

M8 x 1.25
Torque Specification
27 ft-lbs (37 N·m)
Important Notes
Ensure the sway bar link is properly aligned with the sway bar and suspension.
2

Rear Sway Bar Mounting Bolts

M8 x 1.25
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Estimated value based on similar components. Ensure proper alignment before tightening.

Wheel Hub

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
89 ft-lbs (121 N·m)
Important Notes
Always use a star pattern when tightening wheel lug nuts.
2

Drive Axle/Half Shaft Bolts

M10 x 1.25
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Ensure the drive axle is properly seated in the wheel hub.
3

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
152 ft-lbs (206 N·m)
Important Notes
Ensure the axle nut is properly seated and tightened to prevent wheel separation.

Subframe

1

Subframe Mounting Bolts

M12 x 1.75
Torque Specification
75 ft-lbs (102 N·m)
Important Notes
Estimated value based on similar components. Ensure proper alignment before tightening.

Rear Suspension

1

Rear Trailing Arm Bolts

M12 x 1.75
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Estimated value based on similar components. Ensure proper alignment before tightening.
2

Rear Hub Carrier Bolts

M12 x 1.75
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Estimated value based on similar components. Ensure proper alignment before tightening.

Tr580 Transmission

Torque specifications for Tr580 Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M10 x 1.25
Torque Specification
47 ft-lbs (63 N·m)
Important Notes
Ensure proper alignment of the transmission before tightening. Torque in a crisscross pattern.

Oil Pan

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Use a torque wrench calibrated for low torque values. Over-tightening can damage the oil pan.

Fluid Plugs

1

Transmission Drain Plug

M14 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Replace the crush washer or sealing ring to prevent leaks.
2

Transmission Fill Plug

M14 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Replace the crush washer or sealing ring to prevent leaks.

Drive Axle

1

Drive Axle Bolts

M10 x 1.25
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Ensure the axle is fully seated before tightening.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
152 ft-lbs (206 N·m)
Important Notes
Use a torque wrench capable of high torque values. Ensure the axle is fully seated.

Propeller Shaft

1

Propeller Shaft Bolts

M8 x 1.25
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Torque in a crisscross pattern to ensure even clamping force.

Starter Motor

1

Starter Motor Mounting Bolts

M8 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure the starter motor is properly aligned before tightening.

Tr690 Transmission

Torque specifications for Tr690 Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M10 x 1.25
Torque Specification
47 ft-lbs (63 N·m)
Important Notes
Ensure proper alignment of the transmission before tightening.
2

Transmission Bellhousing Bolts

M10 x 1.25
Torque Specification
47 ft-lbs (63 N·m)
Important Notes
Ensure the transmission is properly aligned with the engine block.

Oil Pan

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Use a new gasket and ensure the sealing surface is clean.
2

Transmission Drain Plug

M14 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use a new crush washer to prevent leaks.
3

Transmission Fill Plug

M14 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use a new crush washer to prevent leaks.

Drivetrain Connections

1

Drive Axle/Half Shaft Bolts

M12 x 1.25
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Ensure the axle is properly seated before tightening.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
152 ft-lbs (206 N·m)
Important Notes
Use a new cotter pin after tightening.
3

Propeller/Drive Shaft Bolts

M10 x 1.25
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Ensure the drive shaft is properly aligned before tightening.

Starter Motor

1

Starter Motor Mounting Bolts

M8 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure the starter motor is properly aligned with the flywheel.

Torque Converter

1

Torque Converter Bolts

M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure the torque converter is properly seated before tightening.

Shift Linkage

1

Shift Linkage Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the shift linkage is properly aligned for smooth operation.

Transmission Crossmember

1

Transmission Crossmember Bolts

M10 x 1.25
Torque Specification
47 ft-lbs (63 N·m)
Important Notes
Ensure the crossmember is properly aligned before tightening.

Transmission Cooler

1

Transmission Cooler Line Fittings

M12 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the fittings are properly seated to prevent leaks.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

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

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

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

How can I find accurate torque specifications for my 2015-2019 Subaru Outback?

Consult your vehicle's owner's manual or refer to the Subaru Technical Information System (STIS) for the most up-to-date torque specifications.

Q2

What tools do I need to properly torque bolts on my Outback?

A calibrated torque wrench, a socket set, and the appropriate extension bars for accessing hard-to-reach bolts are essential.

Q3

IS it crucial to adhere to the recommended torque specifications?

Yes, over-tightening or under-tightening bolts can compromise the safety and performance of your Outback.

Q4

What are the common torque-related mistakes I should avoid?

Using an uncalibrated wrench, applying excessive force, and skipping torque checks can lead to issues.

Q5

How can I ensure my torque wrench IS accurate?

Regular calibration by a certified technician IS recommended to maintain the accuracy of your torque wrench.

Q6

Can I get vehicle-specific torque specifications from a Subaru dealer?

Yes, your local Subaru dealer can provide you with the most accurate and up-to-date torque specifications for your specific Outback model and year.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

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

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

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 Outback.

  • Digital display for accurate readings
  • Audible alarm when target torque IS reached
  • Multiple units (Nm, ft-lb, in-lb)
  • Reversible ratcheting mechanism
  • Recommended brands: CDI, Snap-on, Matco
Learn more
Service Procedures

Tightening Engine Components

Procedure for tightening various engine components on the 2015-2019 Subaru Outback, including cylinder head bolts, intake and exhaust manifold bolts, and oil pan bolts.

  • Clean all mating surfaces and apply a thin layer of engine oil to the threads of the bolts.
  • Use a digital torque wrench to tighten the bolts to the specified torque values found in the service manual or in the technical bulletins provided below.
  • Follow the proper tightening sequence to ensure even distribution of force.
  • Double-check all torque values after tightening.
View full procedure

Replacing Suspension Components

Procedure for replacing suspension components on the 2015-2019 Subaru Outback, including control arms, ball joints, and tie rods.

  • Support the vehicle safely using jack stands.
  • Remove the wheel and tire assembly.
  • Use a digital torque wrench to loosen and remove the bolts securing the suspension component.
  • Replace the worn or damaged component.
  • Tighten the bolts to the specified torque values found in the service manual or in the technical bulletins provided below.
  • Reinstall the wheel and tire assembly.
View full procedure

Brake System Service

Procedure for performing brake system service on the 2015-2019 Subaru Outback, including brake pad replacement, rotor replacement, and caliper обслуживание.

  • Remove the wheel and tire assembly.
  • Use a digital torque wrench to loosen and remove the caliper mounting bolts.
  • Remove the caliper and brake pads.
  • Inspect the brake rotor for wear or damage. Replace if necessary.
  • Install new brake pads and tighten the caliper mounting bolts to the specified torque values found in the service manual or in the technical bulletins provided below.
  • Reinstall the wheel and tire assembly.
View full procedure
Technical Service Bulletins

Cylinder Head Bolt Torque Specification Update

2017-07-25

Updates the torque specification for cylinder head bolts for the 2015-2019 Outback.

2015-2019 Outback

Resolution: The new torque specification for cylinder head bolts IS 85 Nm (62 ft-lb).

Rear Subframe Bolt Recall

2019-02-15

Announces a recall for certain 2015-2019 outbacks due to a potential issue with the rear subframe bolts.

2015-2017 Outback

Resolution: Dealers will inspect the rear subframe bolts and replace them if necessary, free of charge.

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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.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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