ERR3291LUCAS - Thermostat – 300TDi – 88C

- €31,80

€31,80

€31,80 - €31,80

€31,80

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 Lucas

Thermostat for the 2.5L 300TDi diesel engine, operating within the thermostat housing at the top of the cooling circuit.

The thermostat regulates coolant flow between the engine and the radiator based on coolant temperature. Below the opening threshold, coolant is directed through the bypass circuit to accelerate warm-up and maintain consistent operating temperature; once the thermostat opens, it allows full coolant circulation through the radiator.

Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)

Fitment Notes DEFENDER 1987-2006 — 2.5L 300TDi Diesel
DISCOVERY 1 1989-1998 — 2.5L 300TDi (from FA393361 to MA081992)
RANGE ROVER CLASSIC 1992-1994 — 2.5L 300TDi (from VIN JA610294)

Alternative Codes

ERR3291LUCASERR3291

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 does the 300TDi thermostat do?

The thermostat regulates coolant flow on the 2.5L 300TDi diesel engine. It stays shut during warm-up to bring the engine up to temperature quickly, then opens at around 88C to let coolant circulate through the radiator. The 88C rating is its opening temperature.

Which Land Rovers does this thermostat fit?

This thermostat fits the 2.5L 300TDi diesel engine in the Land Rover Defender (1987-2006) and Discovery 1. It sits in the thermostat housing at the top of the cooling circuit.

What are the signs the thermostat needs replacing?

A failed thermostat usually sticks open or shut. Stuck open, the 300TDi runs cold and never reaches temperature; stuck shut, it overheats. Replace it if the engine is slow to warm, runs cold, or starts to overheat.

Should anything else be changed with the thermostat?

On the 300TDi, fit a new thermostat housing gasket or seal at the same time, as the old one rarely reseals once disturbed. The thermostat itself is usually replaced on its own rather than as part of a larger kit.

ERR3291LUCAS - Thermostat – 300TDi – 88C

Job kits containing this part

Frequently asked questions

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