Infiniti Vehicle Models QX50 2014-2017 Torque Specifications
Infiniti Vehicle Models QX50 2014-2017

Infiniti Vehicle Models QX50 2014-2017 Torque Specifications

Complete Infiniti Vehicle Models QX50 2014-2017 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

3.7l Engine

Torque specifications for 3.7L Engine

Cylinder Head and Engine Block

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Torque value range: 25-30 ft-lbs (34-41 N·m)
2

Cylinder Head to Engine Block Studs

M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated torque value range: 40-50 ft-lbs (54-68 N·m)

Main Bearings and Crankshaft

1

Main Bearing Bolts

M16 x 1.5
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Torque value range: 62-68 ft-lbs (84-92 N·m)
2

Crankshaft Pulley/Harmonic Balancer Bolt

M18 x 1.5
Torque Specification
108 ft-lbs (146 N·m)
Important Notes
Torque value range: 105-112 ft-lbs (142-152 N·m)

Valve Train and Timing

1

Camshaft Sprocket Bolt

M14 x 1.5
Torque Specification
76 ft-lbs (103 N·m)
Important Notes
Torque value range: 72-80 ft-lbs (98-108 N·m)
2

Timing Belt/Chain Tensioner Bolt

M12 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Torque value range: 28-38 ft-lbs (38-52 N·m)

Engine Mounts and Transmission

1

Engine Mounting Bolts

M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated torque value range: 40-50 ft-lbs (54-68 N·m)
2

Engine Block to Transmission Bellhousing Bolts

M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated torque value range: 30-40 ft-lbs (41-54 N·m)

Intake and Exhaust

1

Intake Manifold Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Torque value range: 18-23 ft-lbs (24-31 N·m)
2

Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
27 ft-lbs (37 N·m)
Important Notes
Torque value range: 25-30 ft-lbs (34-41 N·m)

Fuel and Ignition

1

Fuel Rail Bolts

M10 x 1.5
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Torque value range: 14-15 ft-lbs (19-21 N·m)
2

Spark Plugs

M14 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Torque value range: 14-22 ft-lbs (19-30 N·m)

Cooling and Lubrication

1

Water Pump Bolts

M10 x 1.5
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Torque value range: 12-15 ft-lbs (16-20 N·m)
2

Thermostat Housing Bolts

M10 x 1.5
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Torque value range: 12-15 ft-lbs (16-20 N·m)

Sensors and Accessories

1

Crankshaft Position Sensor Bolt

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated torque value range: 10-15 ft-lbs (14-20 N·m)
2

Camshaft Position Sensor Bolt

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated torque value range: 10-15 ft-lbs (14-20 N·m)

3.7l V6 Engine

Torque specifications for 3.7L-V6 Engine

Cylinder Head and Engine Block

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Torque value range: 25-30 ft-lbs (34-41 N·m)
2

Cylinder Head to Engine Block Studs

M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated torque value range: 40-50 ft-lbs (54-68 N·m)

Main Bearings and Crankshaft

1

Main Bearing Bolts

M16 x 1.5
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Torque value range: 62-68 ft-lbs (84-92 N·m)
2

Crankshaft Pulley/Harmonic Balancer Bolt

M18 x 1.5
Torque Specification
108 ft-lbs (146 N·m)
Important Notes
Torque value range: 105-112 ft-lbs (142-152 N·m)

Valve Train and Timing

1

Camshaft Sprocket Bolt

M14 x 1.5
Torque Specification
76 ft-lbs (103 N·m)
Important Notes
Torque value range: 72-80 ft-lbs (98-108 N·m)
2

Timing Belt/Chain Tensioner Bolt

M12 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Torque value range: 28-38 ft-lbs (38-52 N·m)

Engine Mounts and Transmission

1

Engine Mounting Bolts

M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated torque value range: 40-50 ft-lbs (54-68 N·m)
2

Engine Block to Transmission Bellhousing Bolts

M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated torque value range: 30-40 ft-lbs (41-54 N·m)

Intake and Exhaust

1

Intake Manifold Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Torque value range: 18-23 ft-lbs (24-31 N·m)
2

Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
27 ft-lbs (37 N·m)
Important Notes
Torque value range: 25-30 ft-lbs (34-41 N·m)

Fuel and Ignition

1

Fuel Rail Bolts

M10 x 1.5
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Torque value range: 14-15 ft-lbs (19-21 N·m)
2

Spark Plugs

M14 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Torque value range: 14-22 ft-lbs (19-30 N·m)

Cooling and Lubrication

1

Water Pump Bolts

M10 x 1.5
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Torque value range: 12-15 ft-lbs (16-20 N·m)
2

Thermostat Housing Bolts

M10 x 1.5
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Torque value range: 12-15 ft-lbs (16-20 N·m)

Sensors and Accessories

1

Crankshaft Position Sensor Bolt

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated torque value range: 10-15 ft-lbs (14-20 N·m)
2

Camshaft Position Sensor Bolt

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated torque value range: 10-15 ft-lbs (14-20 N·m)

7r01 Transmission

Torque specifications for 7r01 Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M14 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated torque value based on similar components and bolt sizes.

Transmission Oil Pan

1

Transmission Oil Pan Bolts

M10 x 1.25
Torque Specification
11 ft-lbs (15 N·m)

Transmission Fluid System

1

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
2

Transmission Fluid Drain/Fill Plug

M12 x 1.5
Torque Specification
27 ft-lbs (37 N·m)

Transmission Bellhousing

1

Transmission Bellhousing Bolts

M16 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated torque value based on industry standards.

Transmission Crossmember

1

Transmission Crossmember Bolts

M18 x 1.5
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Estimated torque value based on industry standards.

Transmission Cooler Lines

1

Transmission Cooler Line Fittings

M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated torque value based on industry standards.

Transmission Solenoid Pack

1

Transmission Solenoid Pack Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated torque value based on industry standards.

Body

Torque specifications for Body

Wheels

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Ensure lug nuts are tightened in a star pattern to ensure even clamping force.

Suspension

1

Strut/Shock Absorber Mounting Bolts

M10 x 1.25
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Ensure suspension is at ride height before final torque application.
2

Control Arm Bolts

M12 x 1.75
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Ensure suspension is at ride height before final torque application.

Steering

1

Steering Gear/Rack Bolts

M12 x 1.75
Torque Specification
75 ft-lbs (102 N·m)
Important Notes
Ensure proper alignment of the steering rack before torque application.

Fuel System

1

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure fuel tank is properly aligned before torque application.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper alignment of the fuel filler neck before torque application.

Body Panels

1

Body Panel Bolts (e.g., fenders, doors, hood, trunk)

M6 x 1.0
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Estimated value based on typical body panel bolt sizes. Avoid over-tightening to prevent damage to panels or threads.
2

Bumper Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper alignment of the bumper before torque application.
3

Mirror Mounting Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Ensure proper alignment of the mirror before torque application.

Interior

1

Seat Mounting Bolts

M10 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Critical for passenger safety. Ensure proper alignment of the seat before torque application.

Brakes

Torque specifications for Brakes

Brake Caliper System

1

Brake Caliper Bolts

M10 x 1.25
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Torque value is an average of the provided range (20-25 ft-lbs).
2

Brake Caliper Mounting Bracket Bolts

M12 x 1.5
Torque Specification
80 ft-lbs (108.5 N·m)
Important Notes
Torque value is an average of the provided range (75-85 ft-lbs).

Brake Rotor Drum System

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Specification
27.5 ft-lbs (37.3 N·m)
Important Notes
Torque value is an average of the provided range (25-30 ft-lbs).

Wheel Attachment System

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
85 ft-lbs (115.2 N·m)
Important Notes
Torque value is an average of the provided range (80-90 ft-lbs). Always follow a star pattern for tightening.

Brake Hydraulic System

1

Brake Hose Banjo Bolt

M10 x 1.0
Torque Specification
19 ft-lbs (25.8 N·m)
Important Notes
Torque value is an average of the provided range (16-22 ft-lbs). Ensure the sealing washers are in good condition.
2

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
12.5 ft-lbs (16.9 N·m)
Important Notes
Torque value is an average of the provided range (10-15 ft-lbs).

Brake Pedal System

1

Brake Pedal Bracket Bolts

M8 x 1.25
Torque Specification
17.5 ft-lbs (23.7 N·m)
Important Notes
Torque value is an average of the provided range (15-20 ft-lbs).

Abs System

1

ABS Sensor Mounting Bolts

M6 x 1.0
Torque Specification
8.5 ft-lbs (11.5 N·m)
Important Notes
Torque value is an average of the provided range (7-10 ft-lbs).

Drivetrain

Torque specifications for Drivetrain

Engine Block and Transmission

1

Engine Block to Transmission Bellhousing Bolts

M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, consult manufacturer's documentation for accurate information.
2

Main Bearing Bolts

M12 x 1.5
Torque Specification
65 ft-lbs (88 N·m)

Flywheel and Crankshaft

1

Flywheel Bolts

M16 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
2

Crankshaft Pulley/Harmonic Balancer Bolt

M18 x 1.5
Torque Specification
110 ft-lbs (149 N·m)

Transmission and Transfer Case

1

Transmission Mounting Bolts

M14 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
2

Transfer Case Mounting Bolts

M16 x 1.5
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Estimated value, consult manufacturer's documentation for accurate information.

Differential and Axles

1

Differential Mounting Bolts

M18 x 1.5
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Estimated value, consult manufacturer's documentation for accurate information.
2

Drive Axle/Half Shaft Bolts

M20 x 1.5
Torque Specification
65 ft-lbs (88 N·m)

CV Joints and Axle Nuts

1

CV Joint/Axle Nuts

M22 x 1.5
Torque Specification
150 ft-lbs (203 N·m)

Electrical

Torque specifications for Electrical

Ignition System

1

Ignition Coil Bolt

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Ensure the ignition coil is properly seated before tightening.

Starting System

1

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Ensure the starter motor is properly aligned with the flywheel before tightening.

Charging System

1

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Ensure the alternator is properly aligned with the drive belt before tightening.

Battery System

1

Battery Terminal Nuts

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Ensure the terminals are clean and free of corrosion before tightening.

Grounding System

1

Ground Strap Bolts

M8 x 1.25
Torque Specification
13 ft-lbs (17 N·m)
Important Notes
Estimated value based on similar grounding components. Ensure the grounding surface is clean and free of corrosion.

Electrical Control System

1

Fusebox/Relay Box Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on similar electrical components. Ensure the fusebox/relay box is properly seated before tightening.
2

ECU/ECM Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on similar electrical components. Ensure the ECU/ECM is properly seated before tightening.

Wiring System

1

Wiring Harness Clamp Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on similar wiring components. Ensure the wiring harness is properly routed before tightening.

Emissions Sensors

Torque specifications for Emissions_sensors

Oxygen Sensors

1

Oxygen Sensor Bolts

M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value, similar to Exhaust Manifold/Headers Bolts
2

Oxygen Sensor Wire Harness Bolts

M6 x 1.0
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Estimated value, based on industry standards

Egr Valve

1

EGR Valve Bolts

M10 x 1.5
Torque Specification
13 ft-lbs (18 N·m)
2

EGR Valve Pipe Bolts

M12 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value, based on industry standards

Fuel Injectors

1

Fuel Injector Bolts

M8 x 1.25
Torque Specification
8 ft-lbs (11 N·m)
2

Fuel Injector Rail Mounting Bolts

M10 x 1.5
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value, based on industry standards

Exhaust

Torque specifications for Exhaust

Exhaust Manifold Headers

1

Exhaust Manifold/Headers to Engine Block Bolts

M12 x 1.5
Torque Specification
27.5 ft-lbs (37.3 N·m)
Important Notes
Estimated average torque value for M12 x 1.5 bolts.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M12 x 1.5
Torque Specification
27.5 ft-lbs (37.3 N·m)
Important Notes
Estimated average torque value for M12 x 1.5 bolts.

Exhaust Pipe

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
27.5 ft-lbs (37.3 N·m)
Important Notes
Estimated average torque value for M12 x 1.5 bolts.
2

Exhaust Pipe to Catalytic Converter Bolts

M12 x 1.5
Torque Specification
27.5 ft-lbs (37.3 N·m)
Important Notes
Estimated average torque value for M12 x 1.5 bolts.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M12 x 1.5
Torque Specification
27.5 ft-lbs (37.3 N·m)
Important Notes
Estimated average torque value for M12 x 1.5 bolts.

Muffler

1

Muffler to Exhaust Pipe Bolts

M12 x 1.5
Torque Specification
27.5 ft-lbs (37.3 N·m)
Important Notes
Estimated average torque value for M12 x 1.5 bolts.

Oxygen Sensor

1

Oxygen Sensor Bolts

M10 x 1.25
Torque Specification
17.5 ft-lbs (23.7 N·m)
Important Notes
Estimated average torque value for M10 x 1.25 bolts.

Exhaust System Mounting

1

Exhaust System Mounting Bolts

M14 x 1.5
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated average torque value for M14 x 1.5 bolts.

Heat Shield

1

Heat Shield Bolts

M8 x 1.25
Torque Specification
12.5 ft-lbs (16.9 N·m)
Important Notes
Estimated average torque value for M8 x 1.25 bolts.

Exhaust System Clamp

1

Exhaust System Clamp Bolts

M8 x 1.25
Torque Specification
12.5 ft-lbs (16.9 N·m)
Important Notes
Estimated average torque value for M8 x 1.25 bolts.

Fuel

Torque specifications for Fuel

Fuel Rail System

1

Fuel Rail Bolts

M8 x 1.25
Torque Specification
14.5 ft-lbs (20 N·m)
Important Notes
Torque in a crisscross pattern to ensure even pressure distribution.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Ensure injectors are seated properly before torquing.
3

High-Pressure Fuel Line Fittings

M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar high-pressure fittings.

Fuel Pump And Tank System

1

Fuel Pump Mounting Bolts

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Torque in a star pattern to ensure even pressure.
2

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
17.5 ft-lbs (24 N·m)
Important Notes
Ensure tank is properly aligned before torquing.
3

Fuel Tank Sender Unit Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on similar sender unit bolts.

Fuel Delivery System

1

Fuel Filter Bolt/Nut

M12 x 1.5
Torque Specification
23.5 ft-lbs (32 N·m)
Important Notes
Ensure filter housing is properly aligned before torquing.
2

Fuel Filler Neck Bolts

M8 x 1.25
Torque Specification
17.5 ft-lbs (24 N·m)
Important Notes
Ensure filler neck is properly aligned before torquing.
3

Fuel Line Bracket Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on similar bracket bolts.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.25
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Torque value is an average of the provided range (20-25 ft-lbs).

Ac Line Fittings

1

A/C Line Fittings

M8 x 1.0
Torque Specification
15 ft-lbs (20.3 N·m)
Important Notes
Torque value is an average of the provided range (13-17 ft-lbs).

Evaporator Core

1

Evaporator Core Housing Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (13.6 N·m)
Important Notes
Torque value is an average of the provided range (8-12 ft-lbs). Estimated based on bolt size and component function.

Blower Motor

1

Blower Motor Mounting Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12.2 N·m)
Important Notes
Torque value is an average of the provided range (8-10 ft-lbs). Estimated based on bolt size and component function.

Heater Core

1

Heater Core Inlet/Outlet Pipe Bolts

M8 x 1.25
Torque Specification
12.5 ft-lbs (16.9 N·m)
Important Notes
Torque value is an average of the provided range (10-15 ft-lbs). Estimated based on bolt size and component function.

Hvac Case

1

HVAC Case Assembly Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (13.6 N·m)
Important Notes
Torque value is an average of the provided range (8-12 ft-lbs). Estimated based on bolt size and component function.

Suspension

Torque specifications for Suspension

Strut And Shock Absorber

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Estimated average torque value from the given range.
2

Coil Spring Mounting Bolts

M12 x 1.25
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Estimated average torque value from the given range.

Control Arms

1

Control Arm Bolts

M16 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Estimated average torque value from the given range.
2

Upper Control Arm Bushing Bolts

M10 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated average torque value from the given range.
3

Lower Control Arm Bushing Bolts

M10 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated average torque value from the given range.

Steering

1

Steering Gear/Rack Bolts

M14 x 1.5
Torque Specification
75 ft-lbs (102 N·m)
Important Notes
Estimated average torque value from the given range.
2

Tie Rod End Nut

M12 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated average torque value from the given range.

Sway Bar

1

Sway Bar Link Nut

M12 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated average torque value from the given range.
2

Stabilizer Bar Mounting Bolts

M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated average torque value from the given range.

Ball Joint

1

Ball Joint Nut

M14 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Estimated average torque value from the given range.

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 torque spec for the lug nuts on a 2014-2017 Infiniti qx50?

The torque specification for the lug nuts on a 2014-2017 Infiniti qx50 IS 94 ft-lbs (127 Nm).

Q2

What IS the torque spec for the oil drain plug on a 2014-2017 Infiniti qx50?

The torque specification for the oil drain plug on a 2014-2017 Infiniti qx50 IS 25 ft-lbs (34 Nm).

Q3

What IS the torque spec for the spark plugs on a 2014-2017 Infiniti qx50?

The torque specification for the spark plugs on a 2014-2017 Infiniti qx50 IS 18 ft-lbs (24 Nm).

Q4

What IS the torque spec for the brake calipers on a 2014-2017 Infiniti qx50?

The torque specifications for the brake calipers on a 2014-2017 Infiniti qx50 are as follows: - Front caliper mounting bolts: 174 ft-lbs (236 Nm) - Rear caliper mounting bolts: 118 ft-lbs (160 Nm) - Brake pad mounting bolts: 31 ft-lbs (42 Nm)

Q5

What type of torque wrench should I use on my 2014-2017 Infiniti qx50?

It IS recommended to use a torque wrench that IS calibrated to measure inch-pounds or foot-pounds. The torque wrench should also have a range that covers the torque specifications for the bolts you are tightening.

Q6

How do I ensure that the torque wrench IS accurate?

To ensure that the torque wrench IS accurate, it should be calibrated regularly. Calibration can be done by a professional or by using a torque wrench calibration kit.

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 qx50.

  • 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

Engine and Drivetrain Bolt Tightening Specifications

Technical procedure for tightening bolts on the engine, transmission, and drivetrain components of the 2014-2017 Infiniti qx50.

  • Refer to your vehicle's service manual for the specific torque specifications for each bolt size and application.
  • Use the digital torque wrench to tighten each bolt to the specified torque.
  • Follow the tightening sequence and torque values provided in the service manual.
  • Double-check that all bolts are tightened to the correct torque using the torque wrench.
View full procedure

Suspension and Steering Component Bolt Torque Specifications

Technical procedure for tightening bolts on the suspension and steering components of the 2014-2017 Infiniti qx50.

  • Refer to your vehicle's service manual for the specific torque specifications for each bolt size and application.
  • Use the digital torque wrench to tighten each bolt to the specified torque.
  • Follow the tightening sequence and torque values provided in the service manual.
  • Double-check that all bolts are tightened to the correct torque using the torque wrench.
View full procedure

Brake Component Bolt Torque Specifications

Technical procedure for tightening bolts on the brake components of the 2014-2017 Infiniti qx50.

  • Refer to your vehicle's service manual for the specific torque specifications for each bolt size and application.
  • Use the digital torque wrench to tighten each bolt to the specified torque.
  • Follow the tightening sequence and torque values provided in the service manual.
  • Double-check that all bolts are tightened to the correct torque using the torque wrench.
View full procedure
Technical Service Bulletins

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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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