LR011952 Genuine Crankshaft Pulley Bolt Rover

The LR011952 crankshaft pulley bolt is a critical fastener that secures the harmonic balancer and crankshaft front pulley to the crankshaft on a wide range of modern Land Rover and Range Rover vehicles equipped with the 5.0-liter AJ-V8 (naturally aspirated and supercharged) and 3.0-liter V6 supercharged petrol/gas engines. This is a Genuine Land Rover part supplied directly from Jaguar Land Rover, ensuring exact factory specification, material grade, and dimensional accuracy.

This is an M18 x 110mm one-time-use stretch bolt with a left-hand thread. Because it is torque-to-yield, the factory service procedure specifies that the bolt must be discarded after removal and replaced with a new one any time the crankshaft pulley is disturbed. The left-hand thread design is intentional, working in conjunction with engine rotation direction to keep the crankshaft pulley securely clamped under load. The factory torque procedure calls for an initial torque of 200 Nm (148 lb-ft) followed by an additional 270 degrees of angular rotation.

This bolt is required any time you service the front crankshaft seal, replace the crankshaft pulley or harmonic balancer, perform timing chain work, or carry out an engine refresh on these powerplants. Skipping replacement and reusing the original bolt risks fatigue failure, loss of clamping force on the pulley, and serious engine damage. Always replace this bolt with a new unit as part of any procedure that requires its removal.

Fits:
Range Rover L322 (2010 to 2012) 5.0-liter AJ-V8 Petrol/Gas
Range Rover L322 (2010 to 2012) 5.0-liter AJ-V8 Supercharged Petrol/Gas
Range Rover L405 (2013 to 2022) 5.0-liter AJ-V8 Supercharged Petrol/Gas Range Rover L405 (2014 to 2022) 3.0-liter V6 Supercharged Petrol/Gas Range Rover Sport L320 (2010 to 2013) 5.0-liter AJ-V8 Petrol/Gas
Range Rover Sport L320 (2010 to 2013) 5.0-liter AJ-V8 Supercharged Petrol/Gas Range Rover Sport L494 (2014 to 2022) 5.0-liter AJ-V8 Supercharged Petrol/Gas
Range Rover Sport L494 (2014 to 2022) 3.0-liter V6 Supercharged Petrol/Gas Range Rover Velar L560 (2018 to Present) 3.0-liter V6 Supercharged Petrol/Gas
Range Rover Velar L560 (2019 to Present) 5.0-liter AJ-V8 Supercharged Petrol/Gas
LR4 / Discovery 4 L319 (2010 to 2013) 5.0-liter AJ-V8 Petrol/Gas
LR4 / Discovery 4 L319 (2014 to 2016) 3.0-liter V6 Supercharged Petrol/Gas
Discovery 5 L462 (2017 to 2020) 3.0-liter V6 Supercharged Petrol/Gas
Defender L663 (2022 to Present) 5.0-liter AJ-V8 Supercharged Petrol/Gas 

Part Number: LR011952 Free shipping to the lower 48!

[FAQ] Is this bolt a one-time-use part?

Yes. The LR011952 is a torque-to-yield stretch bolt and must be replaced every time it is removed. The factory service procedure explicitly states the bolt cannot be reused or reinstalled, as it loses its clamping integrity after the initial torque application.

What is the thread direction and torque specification?

This bolt has a left-hand thread, which means it loosens clockwise and tightens counterclockwise. The factory tightening procedure is 200 Nm (148 lb-ft) followed by an additional 270 degrees of rotation. A specialty crankshaft pulley holding tool is required to counter-hold the pulley during torque application.

Does this fit both the supercharged and naturally aspirated 5.0-liter engines?

Yes. LR011952 is the current Genuine Land Rover service part for both naturally aspirated and supercharged 5.0-liter AJ-V8 engines, as well as the 3.0-liter V6 supercharged petrol/gas engines across the listed model range.