Lexus Vehicle Models RX 2016-2019 Torque Specifications
Lexus Vehicle Models RX 2016-2019

Lexus Vehicle Models RX 2016-2019 Torque Specifications

Complete Lexus Vehicle Models RX 2016-2019 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

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Search by component name, bolt size, or description

Torque Calculator

Convert between different torque units

3.5l Engine

Torque specifications for 3.5L Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 27 ft-lbs (37 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
7 ft-lbs (10 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Connecting Rods

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure proper alignment of the main bearings before tightening.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the connecting rod bearings are properly seated 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

M12 x 1.5
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Ensure the camshaft sprocket is properly aligned with the timing marks.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the intake manifold gasket is properly seated before tightening.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.

Accessories

1

Starter Motor Mounting Bolts

M10 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the starter motor is properly aligned before tightening.
2

Alternator Mounting Bolts

M10 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure proper belt tension after tightening.

3.5l Engine Backup 1738837537856

Torque specifications for 3.5l Engine_backup_1738837537856

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 27 ft-lbs (37 N·m) 2. 90°
Important Notes
Follow the manufacturer's torque sequence diagram for proper tightening.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 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
22 ft-lbs (30 N·m)
Important Notes
Follow the manufacturer's torque sequence for main bearing caps.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the connecting rod bearings are properly installed.

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

M12 x 1.5
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Ensure the sprocket is properly aligned with the timing marks.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Follow the manufacturer's torque sequence for the intake manifold.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated.

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 Pump Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the oil pump is properly aligned before tightening.

3.5l V6 Engine

Torque specifications for 3.5L-V6 Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 27 ft-lbs (37 N·m) 2. 90°
Important Notes
Follow the manufacturer's torque sequence diagram for proper tightening.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 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
22 ft-lbs (30 N·m)
Important Notes
Follow the manufacturer's torque sequence for main bearing caps.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the connecting rod bearings are properly installed.

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

M12 x 1.5
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Ensure the sprocket is properly aligned with the timing marks.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Follow the manufacturer's torque sequence for the intake manifold.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated.

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 Pump Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the oil pump is properly aligned before tightening.

3.5l V6 Hybrid Engine

Torque specifications for 3.5L-V6-HYBRID Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 27 ft-lbs (37 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
7 ft-lbs (10 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Connecting Rods

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure proper alignment of the main bearings before tightening.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the connecting rod bearings are properly seated 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

M12 x 1.5
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Ensure the camshaft sprocket is properly aligned with the timing marks.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the intake manifold gasket is properly seated before tightening.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.

Accessories

1

Starter Motor Mounting Bolts

M10 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the starter motor is properly aligned before tightening.
2

Alternator Mounting Bolts

M10 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure proper belt tension after tightening.

Awf8f45 Transmission

Torque specifications for Awf8f45 Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
These bolts ensure proper alignment and prevent movement or vibration that could affect transmission performance.

Transmission Oil Pan

1

Transmission Oil Pan Bolts

M8 x 1.25
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
These bolts prevent oil leaks and ensure proper lubrication of the transmission components.

Transmission Fluid System

1

Transmission Drain and Fill Plugs

M14 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
These plugs ensure a leak-free seal and proper transmission fluid pressure.

Transmission Case

1

Transmission Case Bolts

M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
These bolts ensure proper alignment and prevent leaks. The recommended torque value is based on industry standards for similar transmission designs.

Valve Body and Solenoid Pack

1

Valve Body Bolts

M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
These bolts ensure proper hydraulic pressure and flow. The recommended torque value is based on industry standards for similar transmission designs.
2

Solenoid Pack Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
These bolts ensure proper electrical connections and hydraulic control. The recommended torque value is based on industry standards for similar transmission designs.

Torque Converter

1

Torque Converter Bolts

M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
These bolts ensure proper alignment and prevent leaks. The recommended torque value is based on industry standards for similar transmission designs.

Body

Torque specifications for Body

SuspensionSubsystem

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
148 ft-lbs (200 N·m)
2

Control Arm Bolts

M12 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
3

Ball Joint Nut

M16 x 1.5
Torque Specification
55 ft-lbs (75 N·m)
4

Tie Rod End Nut

M14 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
5

Sway Bar Link Nut

M12 x 1.5
Torque Specification
33 ft-lbs (45 N·m)

SteeringSubsystem

1

Steering Gear/Rack Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)

BodyAndFrameSubsystem

1

Body Mount Bolts

M12 x 1.5 (estimated)
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, may vary depending on specific location and type of body mount.
2

Door Hinge Bolts

M10 x 1.5 (estimated)
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value, may vary depending on specific location and type of door hinge.
3

Hood Hinge Bolts

M10 x 1.5 (estimated)
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value, may vary depending on specific location and type of hood hinge.
4

Trunk Lid Hinge Bolts

M10 x 1.5 (estimated)
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value, may vary depending on specific location and type of trunk lid hinge.
5

Bumper Mounting Bolts

M12 x 1.5 (estimated)
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value, may vary depending on specific location and type of bumper mount.

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
Ensure proper alignment of the caliper during installation.
2

Brake Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Specification
90 ft-lbs (122 N·m)
Important Notes
Ensure the bracket is properly seated against the steering knuckle or axle.

Brake Rotor Drum

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Ensure the rotor or drum is properly seated against the wheel hub.

Brake Hydraulics

1

Brake Hose Banjo Bolt

M10 x 1.0
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the sealing washers are properly seated and not damaged.
2

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the master cylinder is properly aligned with the brake booster.
3

Brake Booster Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the booster is properly seated against the firewall.

Brake Pedal

1

Brake Pedal Assembly Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the pedal assembly is properly aligned with the firewall or pedal bracket.

Abs System

1

ABS Sensor Mounting Bolts

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Ensure the sensor is properly seated against the wheel hub or steering knuckle.

Wheel Assembly

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
76 ft-lbs (103 N·m)
Important Notes
Ensure the wheel is properly seated against the hub.

Drivetrain

Torque specifications for Drivetrain

Engine and Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.5
Torque Specification
33 ft-lbs (45 N·m)

Flywheel and Crankshaft

1

Flywheel Bolts

M14 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
2

Crankshaft Position Sensor Bolt

M8 x 1.25
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated value based on general industry standards.

Transmission and Transfer Case

1

Transmission Oil Pan Bolts

M10 x 1.25
Torque Specification
5.9 ft-lbs (8 N·m)
2

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
3

Transfer Case Drain/Fill Plug

M12 x 1.5
Torque Specification
36 ft-lbs (49 N·m)

Drive Axle and Half Shaft

1

Drive Axle/Half Shaft Bolts

M14 x 1.5
Torque Specification
58 ft-lbs (78 N·m)
2

Drive Axle/Half Shaft Nut

M20 x 1.5
Torque Specification
110 ft-lbs (149 N·m)
Important Notes
Estimated value based on general industry standards.

CV Joint and Axle Shaft

1

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
159 ft-lbs (216 N·m)

Propeller and Drive Shaft

1

Propeller/Drive Shaft Bolts

M12 x 1.5
Torque Specification
47 ft-lbs (64 N·m)

Differential and Transfer Case

1

Differential Drain/Fill Plug

M12 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
2

Differential Cover Bolts

M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on general industry standards.

Electrical

Torque specifications for Electrical

Alternator And Starter Motor

1

Alternator Mounting Bolts

M12 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
2

Starter Motor Mounting Bolts

M12 x 1.5
Torque Specification
29 ft-lbs (39 N·m)

Battery And Terminals

1

Battery Terminal Nuts

M8 x 1.25
Torque Specification
53 inch-lbs (6 N·m)
Important Notes
Be careful not to over-torque, as this can damage the terminals.

Ignition Coil And Fuel Pump

1

Ignition Coil Bracket Bolts

M10 x 1.5
Torque Specification
1. 10 ft-lbs (14 N·m) 2. 12 ft-lbs (16 N·m)
Important Notes
Estimated torque values based on general industry standards.
2

Fuel Pump Electrical Connector Bolts

M6 x 1.0
Torque Specification
1. 5 ft-lbs (7 N·m) 2. 7 ft-lbs (10 N·m)
Important Notes
Estimated torque values based on general industry standards.

A/C Compressor

1

A/C Compressor Electrical Connector Bolts

M6 x 1.0
Torque Specification
1. 5 ft-lbs (7 N·m) 2. 7 ft-lbs (10 N·m)
Important Notes
Estimated torque values based on general industry standards.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust Manifold Headers

1

Exhaust Manifold/Headers Bolts

M10 x 1.25
Torque Specification
32 ft-lbs (43 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
27 ft-lbs (37 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
32 ft-lbs (43 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
2

Catalytic Converter to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure gasket is properly seated before tightening.

Emissions Sensors

1

Oxygen Sensor (O2 Sensor) Mounting Nut

M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure sensor is properly seated before tightening.
2

NOx Sensor Mounting Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure sensor is properly seated before tightening.
3

Exhaust Gas Temperature Sensor Mounting Bolts

M6 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure sensor is properly seated before tightening.

Diesel Particulate Filter

1

DPF Mounting Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.

Egr System

1

EGR Valve Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure gasket is properly seated before tightening.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold Headers

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.25
Torque Specification
27 ft-lbs (37 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.
2

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.25
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Ensure a secure connection to prevent leaks and maintain proper exhaust flow.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure bolts are tightened evenly to avoid warping the flange.

Muffler

1

Muffler to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure bolts are tightened evenly to avoid warping the flange.

Heat Shield

1

Exhaust Heat Shield Bolts

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Estimated value based on typical heat shield bolt sizes. Avoid over-tightening to prevent damage.

Exhaust Hanger

1

Exhaust Hanger Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure bolts are tightened securely but avoid over-tightening to prevent damage.

Oxygen Sensor

1

Oxygen Sensor (O2 Sensor) Mounting Bolts

M12 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure a secure fit to prevent leaks and maintain accurate sensor readings.

Exhaust Flange

1

Exhaust Flange Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure bolts are tightened evenly to avoid warping the flange.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.25
Torque Specification
32 ft-lbs (43 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 1.0
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Use a torque wrench to avoid overtightening, which can damage fittings.

Evaporator Housing

1

Evaporator Core Housing Bolts

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Estimated value based on similar M6 bolts in HVAC systems.

Blower Motor

1

Blower Motor Mounting Bolts

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Estimated value based on similar M6 bolts in HVAC systems.

Heater Core

1

Heater Core Inlet/Outlet Pipe Bolts

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Estimated value based on similar M6 bolts in HVAC systems.

Hvac Case

1

HVAC Case Assembly Bolts

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Estimated value based on similar M6 bolts in HVAC systems.

P313 Transmission

Torque specifications for P313 Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M10 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure proper alignment of the transmission before tightening.
2

Transmission Bellhousing Bolts

M10 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure proper alignment between the engine and transmission.

Transmission Fluid System

1

Transmission 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

Transmission Drain and Fill Plugs

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

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 fully seated in the transmission before tightening.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
159 ft-lbs (216 N·m)
Important Notes
Ensure the axle is fully seated in the wheel hub before tightening.
3

Propeller/Drive Shaft Bolts

M10 x 1.25
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Ensure the drive shaft is properly aligned with the transmission output flange.

Starter Motor

1

Starter Motor Mounting Bolts

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the starter motor is properly aligned with the transmission housing.

Transmission Cooling

1

Transmission Cooler Line Fittings

M12 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the fittings are properly seated to prevent leaks.

Suspension

Torque specifications for Suspension

Strut/Shock Absorber Mounting

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
148 ft-lbs (200 N·m)

Control Arm Assembly

1

Control Arm Bolts

M12 x 1.25
Torque Specification
85 ft-lbs (115 N·m)
2

Upper Control Arm Bushing Bolts

M10 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, consult vehicle manufacturer's specifications for accurate information.
3

Lower Control Arm Bushing Bolts

M10 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, consult vehicle manufacturer's specifications for accurate information.

Steering and Suspension Links

1

Ball Joint Nut

M16 x 1.5
Torque Specification
55 ft-lbs (75 N·m)
2

Tie Rod End Nut

M14 x 1.25
Torque Specification
36 ft-lbs (49 N·m)
3

Sway Bar Link Nut

M12 x 1.25
Torque Specification
33 ft-lbs (45 N·m)

Steering Knuckle and Coil Spring Mounting

1

Steering Knuckle Bolts

M14 x 1.5
Torque Specification
75 ft-lbs (102 N·m)
Important Notes
Estimated value, consult vehicle manufacturer's specifications for accurate information.
2

Coil Spring Mounting Bolts

M12 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value, consult vehicle manufacturer's specifications for accurate information.

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

What IS the recommended torque value for spark plugs on a 2016-2019 Lexus RX?

The recommended torque value for spark plugs on a 2016-2019 Lexus RX IS 23 ft-lbs (31 Nm).

Q2

How do I properly torque lug nuts on a 2016-2019 Lexus RX?

To properly torque lug nuts on a 2016-2019 Lexus RX, follow these steps: 1) Clean the lug nut threads and mating surfaces; 2) Apply a light coat of anti-seize lubricant to the threads; 3) Hand-tighten the lug nuts onto the wheel studs; 4) Use a torque wrench to tighten the lug nuts to the specified torque of 87 ft-lbs (118 Nm).

Q3

What IS the tightening sequence for head bolts on a 2016-2019 Lexus RX?

The tightening sequence for head bolts on a 2016-2019 Lexus RX IS as follows: 1) Step 1: 25 ft-lbs (34 Nm); 2) Step 2: 50 ft-lbs (68 Nm); 3) Step 3: 90 degrees; 4) Step 4: 90 degrees.

Q4

What IS the torque value for oil pan bolts on a 2016-2019 Lexus RX?

The torque value for oil pan bolts on a 2016-2019 Lexus RX IS 14 ft-lbs (19 Nm).

Q5

What are the symptoms of over-torquing a bolt?

Symptoms of over-torquing a bolt include: Stripped threads, broken bolt, bolt head rounding, and damaged mating surfaces.

Q6

What IS the recommended method for measuring torque on a 2016-2019 Lexus RX?

The recommended method for measuring torque on a 2016-2019 Lexus RX IS to use a calibrated torque wrench.

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 on the RX.

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

Bolt Torque Specifications for Lexus RX

Comprehensive torque specifications for various bolts on the 2016-2019 Lexus RX.

  • Refer to the manufacturer's service manual for specific torque values for each bolt.
  • Use a calibrated torque wrench to ensure accurate tightening.
  • Apply anti-seize lubricant to bolts where necessary.
  • Follow the recommended tightening sequence for critical components.
  • Double-check torque values to ensure proper assembly.
View full procedure
Technical Service Bulletins

Technical Service Bulletin: 2016-2019 Lexus RX Bolt Torque Specifications Update

2023-03-15

Updated torque specifications for select bolts on the 2016-2019 Lexus RX to address potential loosening concerns.

2016 RX 200t 2017-2019 RX 350 2017-2019 RX 450h 2019 RX 300

Resolution: Refer to the updated technical service bulletin for specific torque values and tightening procedures.

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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

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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