603127 | 1/4 UNC x 1 5/16 Screw - 3.5 & 3.9 V8 | Defender, Discovery
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: 603127 - 1/4 UNC x 1 5/16 Fully Threaded Screw
603127 is a 1/4 UNC x 1 5/16 fully threaded screw. Fitted to the rocker cover of 3.5 and 3.9 Rover V8 petrol engines in both carburettor and EFI configurations, it secures the rocker cover to the cylinder head.
Compatibility
- 101 Forward Control - 3.5 & 3.9 Rover V8 petrol
- Defender (1987-2006) - 3.5L V8 Twin Carb Petrol
- Discovery 1 (1989-1998) - 3.5L V8 Twin Carb Petrol (From FA393361 to WA799999)
- Range Rover Classic (1986-1991) - V8 Twin Carb Petrol (To HA610293)
- Range Rover Classic (1992-1994) - V8 EFI Petrol (From JA610294)
- Series 3 Stage 1 V8 - 3.5 & 3.9 Rover V8 petrol
Frequently Asked Questions
603127 is used to fasten and hold the rocker cover in place on 3.5 and 3.9 Rover V8 petrol engines. As a fully threaded 1/4 UNC screw it provides a secure fixing where a coarse UNC thread is required; check threads and fastenings for damage before re-use.
| Model | Variant |
|---|---|
| Land Rover 101 Forward Control | 3.5 & 3.9 Rover V8 petrol |
| Land Rover Defender (1987-2006) | 3.5L V8 Twin Carb Petrol |
| Land Rover Discovery 1 (1989-1998) | 3.5L V8 Twin Carb Petrol (From FA393361 to WA799999) |
| Land Rover Range Rover Classic (1986-1991) | V8 Twin Carb Petrol (To HA610293) |
| Land Rover Range Rover Classic (1992-1994) | V8 EFI Petrol (From JA610294) |
| Land Rover Series 3 Stage 1 V8 | 3.5 & 3.9 Rover V8 petrol |
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 screw during routine engine servicing and replace if it shows corrosion, bending or if the threads are damaged or stripped. When removing the rocker cover for gasket replacement, check all fasteners and replace any that are worn or damaged.
- 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.