ERR4937 | Fuel Rail Assembly - 4.0 V8 EFI | Defender, Discovery, Range Rover Classic
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To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: ERR4937 - Fuel Rail Assembly - Multi-Point Injection
ERR4937 is a Fuel Rail Assembly - Multi-Point Injection. Fitted to 4.0 V8 EFI petrol engines, this fuel rail provides the common fuel feed for the multi-point injection system, distributing fuel from the engine fuel supply to each injector via the connected fuel pipes. It maintains consistent fuel delivery across all cylinders; when replacing the rail, check the pipe and injector sealing surfaces for damage and ensure the rail's connections match the engine's injection plumbing.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Defender (1987-2006) - 4.0 V8 EFI Petrol (L315)
- Discovery 1 (1989-1998) - 4.0 V8 EFI Petrol (From VIN FA393361 to WA799999) (L318)
- Range Rover Classic (1992-1994) - V8 EFI Petrol (From VIN JA610294)
Frequently Asked Questions
The ERR4937 fuel rail supplies a common feed to the multi-point injection system on 4.0 V8 EFI petrol engines, routing fuel from the engine supply to each injector via the connected fuel pipes. It helps maintain even fuel delivery across all cylinders and must interface correctly with injectors and pipes; inspect sealing surfaces and connections when fitting a replacement to ensure leak-free operation.
| Model | Variant |
|---|---|
| Land Rover Defender (1987-2006) | 4.0 V8 EFI Petrol (L315) |
| Land Rover Discovery 1 (1989-1998) | 4.0 V8 EFI Petrol - From VIN FA393361 to WA799999 (L318) |
| Land Rover Range Rover Classic (1992-1994) | V8 EFI Petrol - From VIN JA610294 |
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.
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