ERC9059 | Left-Hand Exhaust Valve Rocker - 2.5L 4-Cyl NA Diesel | Defender 1987-2006
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
To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: ERC9059 - Left-Hand Exhaust Valve Rocker Assembly
ERC9059 is a Left-Hand Exhaust Valve Rocker Assembly fitted to the rockershaft of 2.5L four-cylinder naturally aspirated diesel Defender engines. The assembly transmits camshaft motion via the pushrod to the exhaust valve, mounting on the rockershaft and pivoting as the cam profile lifts the pushrod to convert linear motion into the downward action required to open each exhaust valve. Correct geometry and surface hardness are essential to maintain consistent valve timing and to limit wear; inspect the rocker and contact faces for scoring, excessive lateral play or worn pivots when servicing the cylinder head or replacing the rockershaft.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Defender (1987-2006) - 2.5L 4 Cyl NA Diesel (L315)
Frequently Asked Questions
The ERC9059 links the camshaft-driven pushrod to the exhaust valve stem on the left side of the cylinder bank and pivots on the rockershaft to translate the pushrod's linear movement into the downward action that opens the exhaust valve. Proper geometry and surface hardness are required to maintain valve timing and minimise wear; inspect the rocker faces and pivots for scoring or excessive lateral play during head service.
| Model | Variant |
|---|---|
| Land Rover Defender (1987-2006) | Rockershaft - 2.5L 4 Cyl NA Diesel (L315) |
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 rocker and contact faces for scoring, excessive lateral play or worn pivots when servicing the cylinder head or replacing the rockershaft; replace the rocker if these faults are present to avoid valve timing issues and further wear.
- C8 products are usually supplied by Britpart.
- L8 products are genuine Land Rover parts.
All products and accessories available on LRDirect.com come with a 2-year warranty.