ERR3682 - Thermostat Housing Gasket

- €0,90

€0,90

€0,90 - €0,90

€0,90

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Aftermarket: Quality alternative. This is a quality alternative, designed to fit and function like the original part, often at a more competitive price.

Thermostat Housing Gasket for the engine cooling system.

This top gasket seals the joint between the thermostat housing and the engine, preventing coolant loss at the housing mating face. Manufactured asbestos-free.

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 Thermostat housing gasket (top gasket). Asbestos free.
SERIES II/IIA/III — 2.25L Petrol and Diesel
DEFENDER 1987-2006 — 2.25L 4 Cyl Petrol, 2.5L 4 Cyl Petrol, 2.5L 4 Cyl NA Diesel, 2.5L 4 Cyl Turbo Diesel, 2.5L 200TDi
DISCOVERY 1 1989-1998 — 2.5L 200TDi (to VIN LA081991)
RANGE ROVER CLASSIC — 2.5L 200TDi

Alternative Codes

ERR3682ERR3682ESBR 3644ERC7951ERR977GTG186

In stock 150 units

103 · Gouda 47 · 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 ERR3682 thermostat housing gasket seal on a Land Rover?

The ERR3682 is the top thermostat housing gasket on 2.25L and 2.5L petrol and diesel engines. It seals the thermostat housing cover to the main housing, preventing coolant leaks at the top of the cooling circuit. It fits the Series II/III, Defender, and Discovery 1 200TDi.

Is ERR3682 asbestos-free?

Yes. ERR3682 is confirmed asbestos-free, replacing the original gasket material used on early Land Rover engines. It's safe to handle under standard servicing conditions without additional precautions.

Should this gasket be replaced when fitting a new thermostat?

Yes. The thermostat housing gasket should be replaced every time the housing is opened. Reusing the old gasket risks coolant seeping from the housing cover joint, which can be difficult to locate until the engine has been run and fully warmed.