AAU9903 | Upper Fuel Filter O-Ring - Diesel | Defender, Discovery & Range Rover Classic
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
To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: AAU9903 - Upper Fuel Filter Sealing O-Ring (Diesel)
AAU9903 is the upper sealing O-ring used on diesel fuel filter/sedimentor assemblies. Fitted at the filter head, it provides the upper seal and prevents fuel leaking from the top of the filter housing.
Compatibility
- Defender (1987-2006)
- Discovery 1
- Range Rover Classic (1992-1994) - From VIN JA610294
- Series 2 and 3
Frequently Asked Questions
AAU9903 is the upper sealing O-ring for the diesel fuel filter/sedimentor assembly. It seals the joint at the filter head to prevent fuel escaping from the top of the filter housing.
| Model | Variant |
|---|---|
| Land Rover Defender (1987-2006) | Fuel Filter / Sedimentors (With Diesel Engines) |
| Land Rover Discovery 1 | - |
| Land Rover Range Rover Classic (1992-1994) - From JA610294 | Filter and Sedimentor (With Diesel Engines) |
| Land Rover Series 2 and 3 | - |
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 O-ring whenever the fuel filter or sedimentor assembly is serviced and replace it if it shows signs of hardening, cracking or damage to maintain a reliable seal.
- C8 products are usually supplied by Britpart.
- L8 products are genuine Land Rover parts.
- Z8 products are normally supplied by Allmakes.
All products and accessories available on LRDirect.com come with a 2-year warranty.