AJ811788 - Thermostat by JaguarCooling or Heating Part Land Rover Range Rover

AJ811788 - Thermostat – 3.5/4.2L V8 Petrol

- €71,70

€71,70

€71,70 - €71,70

€71,70

OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.

Brand Jaguar

Thermostat for the 3.5/4.2L V8 petrol engine, naturally aspirated and supercharged, supplied with its water outlet housing.

Located in the engine cooling circuit, the thermostat regulates coolant flow to the radiator, holding the engine at its correct operating temperature by opening as the coolant warms and restricting flow while the engine is cold.

Fitment Notes JAGUAR — Thermostat & water outlet. Fits 3.5/4.2L V8 Petrol, NA and Supercharged. Models: XK (X150), S-TYPE (X200), XF (X250), XJ (X350 2003-2009)

Alternative Codes

AJ811788

Available to order 2–3 weeks

Not currently in stock. Order now — typically ships within 2–3 weeks.

Need it faster? Contact us about express import (2–5 business days).

When will my order arrive?

This item is ordered from our supplier on request. Typical lead time is 2–3 weeks from order confirmation.

Netherlands / Belgium / Germany: 2–4 working days after dispatch.
Other EU countries + UK: 4–8 working days after dispatch.
Outside EU/UK: contact us for an estimate.

Need it faster? Express import available in 2–5 business days — contact us before ordering.

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This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What does the thermostat do?

The thermostat regulates coolant flow to the radiator, holding the Jaguar 3.5/4.2L V8 petrol engine at its correct operating temperature by opening as the coolant warms and restricting flow while the engine is cold. Supplied with its water outlet housing.

Does this thermostat come with the housing?

Yes, this thermostat is supplied complete with its water outlet housing, so you replace the assembly as a unit. That saves transferring the thermostat into an old housing and gives a fresh sealing face. Fits the 3.5/4.2L V8 petrol, NA and supercharged.

What are the signs of a failing thermostat?

A failing thermostat typically causes overheating if stuck closed, or slow warm-up and poor heater output if stuck open. On the Jaguar V8 a stuck thermostat can trigger a temperature warning. Fits XK (X150), S-TYPE (X200), XF (X250) and XJ (X350 2003-2009).

AJ811788 - Thermostat – 3.5/4.2L V8 Petrol

Job kits containing this part

Frequently asked questions

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