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ETC4765LR - Thermostat – 88C

- €25,10
€25,10
€25,10 - €25,10
€25,10
Genuine Part
Genuine: Original manufacturer part. This product is the original part designed and produced by the vehicle manufacturer.
Thermostat - 88°C for the cooling system of V8 petrol engines.

The thermostat regulates coolant flow between the engine block and the radiator, allowing the engine to reach operating temperature quickly by blocking coolant circulation through the radiator when cold. Once coolant temperature reaches 88°C, the thermostat opens progressively to allow circulation through the radiator and maintain a stable working temperature. A failed thermostat - whether stuck open or closed - disrupts the thermal management of the engine, causing either overheating or failure to reach correct operating temperature.
Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Range Rover Classic up to 1994
Land Rover Series 2 and 3
Fitment Notes SERIES III — petrol engines (88°C thermostat)
DEFENDER 1987-2006 — 4.0L V8 EFI petrol
DISCOVERY 1 1989-1998 — 3.5L V8 Twin Carb and 3.9/4.0L V8 EFI petrol
RANGE ROVER CLASSIC 1986-1994 — V8 Twin Carb and V8 EFI petrol (1986-1991 to VIN HA610293; 1992-1994 from VIN JA610294)
Alternative Codes
ETC4765LRETC4765

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.

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 is the ETC4765 thermostat and what does it do?
The ETC4765 is an 88°C thermostat for Land Rover V8 petrol engines. It regulates coolant flow between the engine and radiator, staying shut until coolant reaches 88°C so the engine warms quickly, then opening to maintain a stable temperature. Genuine Land Rover part.
Which Land Rovers does the ETC4765 thermostat fit?
The ETC4765 fits V8 petrol engines across several models: Series III petrol, Defender 4.0L V8 EFI, Discovery 1 (3.5L V8 twin carb and 3.9/4.0L V8 EFI), and Range Rover Classic V8 (1986-1994). Confirm your engine is the V8 petrol before ordering.
What does the 88°C rating mean?
The 88°C rating is the temperature at which this thermostat starts to open, letting coolant circulate through the radiator. It's the correct opening temperature for these Land Rover V8 petrol engines. Fitting a different rating changes how hot the engine runs.
What are the signs the thermostat needs replacing?
A thermostat typically needs replacing when it sticks open or closed. Stuck closed causes overheating; stuck open means the engine never reaches operating temperature and runs cold. Erratic temperature gauge readings are a common symptom on these V8 engines.

Alternative & Related Options

Same part, different brands or quality grades. Click any option to view full details.

1 option
ETC4765 - Thermostat – 88C
Aftermarket ETC4765 - Thermostat – 88C
Stock 21
€9,10 excl. VAT
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