603659 | Sump Drain Plug - 200Tdi, V8 | Defender, Discovery 1, 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
To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: 603659 - Sump Drain Plug
603659 is a sump drain plug that seals the engine oil drain port on V8 and 200Tdi engine sumps. Fitted to the engine oil sump, it provides the sealed drain point used during oil changes and routine maintenance.
Compatibility
- Defender (1987-2006) - 2.5L 200Tdi, 3.5L V8 Twin Carb Petrol, 4.0L V8 EFI Petrol
- Discovery 1 (1989-1998) - 2.5L 200Tdi, 3.5L V8 Twin Carb Petrol
- Range Rover Classic (1986-1994) - 2.5L 200Tdi, V8 Petrol
- Series 2 and 3 - V8
Frequently Asked Questions
603659 seals the engine oil drain port on V8 and 200Tdi sumps, providing the drain point used when changing engine oil. During refitting, ensure the sump threads and sealing face are clean to achieve a reliable seal and avoid cross-threading.
| Model | Variant |
|---|---|
| Land Rover Defender (1987-2006) | 2.5L 200Tdi; 3.5L V8 Twin Carb Petrol; 4.0L V8 EFI Petrol |
| Land Rover Discovery 1 (1989-1998) | 2.5L 200Tdi; 3.5L V8 Twin Carb Petrol |
| Land Rover Range Rover Classic (1986-1994) | 2.5L 200Tdi; V8 Petrol |
| Land Rover Series 2 and Series 3 | 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 drain plug at every oil change and replace the sealing washer each time to prevent leaks; the plug itself can be reused if the threads and sealing face are undamaged. If thread damage, rounding or significant corrosion is observed, replace the plug to avoid leaks or sump damage.
- 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.