Maintain proper clamping force and ensure long-term engine reliability with this Genuine Land Rover Cylinder Head Bolt Set (Part No. 4677857SET20). These torque-to-yield (TTY) bolts must always be replaced during head gasket or cylinder head service. Using new genuine bolts guarantees correct stretch, even torque distribution, and proper sealing of the combustion chamber and cooling passages.

Each kit includes 20 brand-new OE bolts, enough to complete one full cylinder head installation on applicable 4.4L and 5.0L V8 engines.

Fits:

• LR3 / Discovery 3 (4.4L V8)

• LR4 / Discovery 4 (4.4L V8)

• Range Rover Sport L320 (2006–2013)

• Range Rover L322 (2006–2012)

Install tip: Follow factory torque-to-yield tightening procedures exactly. Reusing old bolts can lead to head gasket failure.*

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Supersession Part Numbers

No supersessions found.

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FAQ

How many bolts are included?
This is a complete set of 20 genuine head bolts.

Do these fit both left and right cylinder heads?
Yes — they are correct for either side on the compatible V8 engines.

Why must head bolts be replaced?
They are stretch-type (TTY) bolts that permanently deform when torqued and cannot be reused.

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Part Number: 4677857SET20

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