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LR005765 - Thermostat – 4.4/4.2 V8 Petrol

Original price - Original price €22,10
Original price
€22,10
€22,10 - €22,10
Current price €22,10
Aftermarket Part
Aftermarket: Quality alternative. This is a quality alternative, designed to fit and function like the original part, often at a more competitive price.
Thermostat for the 4.4L AJ V8 and 4.2L Supercharged V8 petrol engines, fitted within the engine cooling circuit.

The thermostat regulates coolant flow through the radiator by remaining closed until the engine reaches operating temperature, then opening to allow circulation. This gives a rapid warm-up from cold and maintains a stable running temperature under load.
Vehicle Model Land Rover Discovery 3 2005-2009 (L319)
Range Rover 2002-2012 (L322)
Range Rover Sport 2005-2013 (L320)
Fitment Notes DISCOVERY 3 2005-2009 — 4.4L AJ V8 petrol
RANGE ROVER L322 2002-2009 — 4.4L AJ V8 petrol & 4.2L Supercharged V8
RANGE ROVER SPORT L320 2005-2009 — 4.4L AJ V8 petrol & 4.2L Supercharged V8
Alternative Codes
LR005765LR005765ESJM-90323

In stock 7 units
6 · Gouda 1 · Drachten
Express delivery available

When will my order arrive?
  • Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
  • UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
  • Netherlands / Belgium / Germany: 2–4 working days.
  • Other EU countries + UK: 4–8 working days.
  • Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

Job kits containing this part

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 on the 4.4 and 4.2 V8 petrol engine?
The thermostat controls coolant flow on the 4.4L AJ V8 and 4.2L supercharged V8 petrol engines. It stays closed during warm-up, then opens once the engine reaches operating temperature so coolant circulates through the radiator. This gives a quick warm-up and a stable running temperature.
How do I confirm this thermostat fits my V8?
Confirm fitment by checking your engine is the 4.4L AJ V8 petrol or 4.2L supercharged V8 petrol, since this thermostat is specific to those units. It suits the Discovery 3, Range Rover L322 and Range Rover Sport L320 built with those engines. Using your VIN to verify the engine variant avoids ordering the wrong part.
What are the signs this V8 thermostat needs replacing?
A failing thermostat typically shows as overheating if it sticks closed, or slow warm-up and a low temperature reading if it sticks open. On the 4.4 and 4.2 V8 you may also see the cooling fans running hard or heater output dropping. Replacing it restores correct coolant temperature control.