LGH000030 | Cylinder Head Inlet Valve - 4.6 V8 | Discovery 2, Range Rover P38
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To check the stock of Genuine Parts before placing an order please use our Contact Us page
To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: LGH000030 - Cylinder Head Inlet Valve - 4.6 V8
LGH000030 is a cylinder head inlet valve for the 4.6 V8 engine. Fitted into the cylinder head, this inlet valve opens during the intake stroke to admit the air-fuel mixture into the combustion chamber and seals against the valve seat when closed. It works together with the valve guide, valve spring and rocker mechanism to maintain correct timing and sealing. Valves are subject to heat, carbon build-up and wear at the seat and stem; symptoms of a faulty inlet valve can include loss of power, rough running and reduced compression. Replace the inlet valve when seating damage, bent stems or severe wear are present to restore combustion sealing and engine performance.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Discovery 2 (1998-2004) - 4.6 V8 (L318)
- Range Rover P38 - 4.6 V8
Frequently Asked Questions
The LGH000030 inlet valve controls the intake phase on 4.6 V8 cylinder heads, lifting from its seat to admit the intake charge and sealing against the valve seat during compression and combustion. It operates with the valve guide, spring and rocker assembly; common failure modes include seat and stem wear or carbon build-up, which can cause reduced compression, rough running and loss of power. Replace the valve if seating damage, bent stems or severe wear are found.
| Model | Variant |
|---|---|
| Land Rover Discovery 2 (1998-2004) | 4.6 V8 (L318) |
| Land Rover Range Rover P38 | 4.6 V8 |
If you are unsure of compatibility with your vehicle, you can also confirm by checking against your V.I.N. Simply reach out to us with your V.I.N and desired part number via our Contact page or use our Finding Part Numbers page.
Inspect the inlet valve during engine diagnosis or cylinder head servicing; replace when seating damage, bent valve stems or severe wear are present to restore sealing and engine performance. If unsure, consult a qualified technician.
- C8 products are usually supplied by Britpart.
- Z8 products are normally supplied by Allmakes.
All products and accessories available on LRDirect.com come with a 2-year warranty.