ERR2803 - Thermostat – 200TDi – 88C

- €10,10

€10,10

€10,10 - €10,10

€10,10

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 2.5L 200TDi diesel engine, operating within the thermostat housing at the top of the cooling circuit.

This thermostat opens at 88°C, allowing coolant to flow from the engine to the radiator once the set temperature is reached. Below this threshold, the thermostat remains closed and directs coolant through the engine bypass circuit to accelerate warm-up and maintain stable operating temperature.

Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Range Rover Classic up to 1994

Fitment Notes DEFENDER 1987-2006 — 2.5L I4 200TDi, 5 Speed Manual Transmission, Less Catalyst
DISCOVERY 1 1989-1998 — 2.5L 200TDi (to VIN LA081991)
RANGE ROVER CLASSIC 1992-1994 — 2.5L 200TDi, 5 Speed Manual Transmission, Less Catalyst (from VIN JA610294)

Alternative Codes

ERR2803ERR2803ESERR3682ERR831

In stock 18 units

14 · Gouda 4 · 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 ERR2803 thermostat do on a 200TDi engine?

The ERR2803 is an 88°C thermostat for the 2.5L 200TDi diesel. It regulates coolant flow between the engine and radiator, opening at 88°C to maintain the correct operating temperature. It fits the Defender, Discovery 1 (to VIN LA081991), and Range Rover Classic with the 200TDi engine.

What are the signs the thermostat has failed on a 200TDi?

A thermostat stuck closed causes overheating; one stuck open prevents the engine reaching normal temperature, leading to poor heater output and higher fuel consumption. On 200TDi engines, slow warming and a temperature gauge that stays low often indicate a stuck-open thermostat.

Should the thermostat housing gasket be replaced at the same time?

Yes. It's good practice to replace the housing gasket (ERR3682) when fitting a new thermostat. The gasket seals the housing to the engine, and a failed one causes a coolant leak right at the repair point. Fitting both together avoids having to redo the job.