LR004656 | Thermostat Housing Assembly - 2.4 Duratorq Puma 140PS | Defender 2007-2016
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: LR004656 - Thermostat Housing Assembly
LR004656 is a thermostat housing assembly fitted to the cooling system of 2.4 Puma diesel engines used in Defender models. It houses the thermostat valve, provides the mechanical mounting and coolant passages that route hot coolant from the cylinder head to the radiator and return cooled fluid to the engine, and interfaces with coolant hoses and temperature sensors. A correctly functioning thermostat and undamaged housing maintain normal engine operating temperature; common faults include a thermostat that sticks open or closed, housing cracks, or worn sealing faces that produce coolant leaks and can lead to overheating, poor heater output or external coolant loss. When replacing the assembly, inspect mating faces, the seal/gasket and any fasteners, and replace any damaged components to restore leak-free coolant circulation.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Defender (2007-2016) - 2.4L Duratorq-TDCi HPCR 140PS Puma - From VIN 7A000001
Frequently Asked Questions
LR004656 is the thermostat housing assembly that contains the thermostat valve and provides the coolant passages between the cylinder head and the radiator on 2.4 Puma diesel engines. It secures the thermostat and interfaces with coolant hoses and temperature sensors; a faulty thermostat or damaged housing can cause overheating, reduced heater output or external coolant leaks. Inspect mating faces, seals/gaskets and fasteners when fitting and replace any damaged parts to ensure leak-free operation.
| Model | Variant |
|---|---|
| Land Rover Defender (2007-2016) | 2.4L Duratorq-TDCi HPCR 140PS Puma - From VIN 7A000001 |
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 assembly if it is cracked, leaking, or if the thermostat is sticking; also inspect and renew seals and gaskets during cooling system repairs or routine service. If unsure whether replacement is required, consult the vehicle's service manual or a qualified 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.