LR005631 | Thermostat Housing Complete Assembly - 4.4 AJ-V8 | Discovery 3, Range Rover Sport L320
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: LR005631 - Thermostat Housing Complete Assembly - 4.4 AJ-V8
LR005631 is a Thermostat Housing Complete Assembly for the 4.4 AJ V8. Fitted to the cooling system of the 4.4 AJ petrol V8 engine, the assembly houses the thermostat element, the coolant temperature sensor and the required sealing O-rings. The thermostat opens at its calibrated temperature to route coolant to the radiator, while the temperature sensor provides the coolant temperature signal to engine management and dashboard instrumentation. The complete assembly is supplied ready to fit and supersedes part number 4646010. Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Discovery 3 (2005-2009) - 4.4 AJ Petrol V8 (From VIN 7A000001)
- Range Rover Sport L320 - 4.4 AJ Petrol V8 (From VIN 7A000001 to VIN 9A999999)
Frequently Asked Questions
LR005631 locates the thermostat element and coolant temperature sensor within the 4.4 AJ V8 cooling circuit and provides the sealed interface to adjoining coolant passages. The thermostat opens at its calibrated temperature to allow flow to the radiator, while the temperature sensor sends coolant temperature data to the engine management system and dashboard. The assembly is supplied complete with the thermostat element, temperature sensor and O-rings to replace the original unit.
| Model | Variant |
|---|---|
| Land Rover Discovery 3 (2005-2009) | 4.4 AJ Petrol V8 (From VIN 7A000001) |
| Land Rover Range Rover Sport L320 | 4.4 AJ Petrol V8 (From VIN 7A000001 to VIN 9A999999) |
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 thermostat housing during routine services and replace it if there are signs of coolant leaks, cracks, or if the thermostat or temperature sensor fails and causes overheating or incorrect temperature readings. If in doubt, follow the vehicle service schedule or consult a technician.
- 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.