LR005631 Thermostat Tube & Housing – 4.4L V8

Available in Aftermarket, OEM Genuine Land Rover, and Upgraded Aluminum
Fits LR3, Range Rover Sport, and Range Rover 4.4L Jaguar V8

The LR005631 Thermostat Tube & Housing is a critical cooling system component on Land Rover models equipped with the 4.4L Jaguar V8. Over time, the original plastic housing can warp or crack, leading to leaks and potential overheating.

We offer four versions to suit your needs:

• Aftermarket (Allmakes/Britpart) – Affordable replacement built to OEM specs

• OEM - Original Equipment Manufacturer from factory

• Genuine Land Rover – Factory original part for exact fit and long life

• Upgraded Aluminum – Heavy-duty billet construction for maximum durability and heat resistance

Key Features:

• Direct-fit replacement for part number LR005631

• Integrates the thermostat and coolant pipe into one assembly

• Maintains proper engine temperature for optimal performance

• Includes housing, tube, and mounting points for simple installation

• Available in Aftermarket, Genuine, OEM, or Upgraded Aluminum

Vehicle Compatibility:

• LR3 / Discovery 3 (2005–2009) – 4.4L V8 Jaguar engine

• Range Rover Sport L320 (2006–2009) – 4.4L V8 and 4.2L Supercharged V8

• Range Rover Full Size L322 (2006–2009) – 4.4L Jaguar V8

Part Number: LR005631

Installation Notes:

• Always replace sealing O-rings when installing a new housing (included with most versions) 4359953/4024557

• Recommended to flush the cooling system and refill with Genuine Land Rover coolant (LRN2279/STC50530) during installation

• Torque to manufacturer specifications

Frequently Asked Questions:

Q: How do I choose between Aftermarket, OEM, and Aluminum?
A: Aftermarket offers value, OEM provides the factory-spec original, Genuine is direct from Land Rover replacement and Aluminum is the ultimate upgrade for longevity and heat resistance.

Q: Does this part include the thermostat?
A: Yes — the thermostat is integrated into the housing.

Q: Why should I replace the housing if it's not leaking?
A: Preventive replacement is common, as original plastic housings can fail suddenly due to age and heat cycling.

Part Number: LR005631

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