90511958 - Thermostat gasket

- €1,90

€1,90

€1,90 - €1,90

€1,90

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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.

Gasket thermostat by-pass
Series 2.25 petrol and diesel.

Vehicle Model Land Rover Series 2 and 3

Fitment Notes SERIES II / IIA / III — 2.25 petrol & 2.25 diesel engines
SERIES II 1958-1961 — 2.0 diesel engine

Alternative Codes

51195890511958

In stock 68 units

56 · Gouda 12 · 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 is the Thermostat Gasket for?

The Thermostat Gasket seals the thermostat by-pass housing joint on Land Rover Series engines, keeping coolant contained where the thermostat housing meets the engine. It fits 2.25 petrol and diesel and early 2.0 diesel engines.

Where does the thermostat gasket sit?

This thermostat gasket sits at the thermostat housing joint in the cooling system, sealing the by-pass passage. It fits Series II, IIA, and III with 2.25 petrol and diesel engines, plus the early Series II 2.0 diesel.

Why do thermostat gaskets fail?

Thermostat gaskets typically fail by hardening and leaking coolant from the housing joint, sometimes causing overheating if coolant is lost. Fit a new gasket whenever the thermostat or housing is removed, since the old one rarely reseals.

How do I confirm this gasket fits my engine?

Fitment covers Land Rover Series II, IIA, and III with the 2.25 petrol or diesel engine, and the 1958-1961 Series II 2.0 diesel. Confirm your engine before ordering, as housing designs changed across the Series range.