STC639 | Water Pump - Cooling System - 200Tdi | 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
To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: STC639 - Water Pump - Cooling System - 200Tdi
STC639 is the water pump for 2.5L 200Tdi Defender engines. Fitted to the engine cooling assembly, it uses an internal impeller to circulate coolant through the engine block, cylinder head and radiator, routing fluid via the coolant hoses and radiator passages. Correct coolant circulation reduces localised hot spots and helps maintain stable thermostat operation. The part is replaced when pump wear or seal failure allows coolant leakage, or when flow performance is compromised during engine service.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Defender (1987-2006) - 200Tdi
Frequently Asked Questions
The STC639 is the coolant pump for 2.5L 200Tdi Defenders. It uses an internal impeller to drive coolant through the engine block, cylinder head and radiator, maintaining operating temperature and supporting thermostat control; common symptoms of failure are coolant leakage at the pump or reduced coolant flow leading to overheating.
| Model | Variant |
|---|---|
| Land Rover Defender (1987-2006) | 2.5L I4 200 TDi L/R, 5 Speed Manual Transmission, Less Catalyst |
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.
Replace the water pump if seals fail and allow coolant leakage, or if flow performance is compromised (for example persistent overheating). Inspect the pump during engine servicing and replace as required.
- C8 products are usually supplied by Britpart.
- Z8 products are normally supplied by Allmakes.
All products and accessories available on LRDirect.com come with a 2-year warranty.