ERR2266 - Viscous unit 300tdi by AllmakesEngine Part Land Rover Range Rover Defender, Discovery, Range Rover

ERR2266 - Viscous Coupling – 300TDi

- €61,00

€61,00

€61,00 - €61,00

€61,00

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

Viscous Coupling - the temperature-controlled fan drive that turns the engine cooling fan on the 2.5 litre 300 TDi diesel.

The coupling sits between the water pump pulley and the cooling fan. A temperature-sensitive silicone fluid inside the unit increases its grip as under-bonnet temperature rises, driving the fan harder when cooling demand is high and letting it slip when demand is low - reducing parasitic drag, fuel consumption and fan noise.

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

Fitment Notes DEFENDER 1994-1998 — 2.5L 300 TDi Diesel
DISCOVERY 1 1989-1998 — 2.5L 300 Tdi (incl. EGR/Gem), to VIN (V)MA081992
RANGE ROVER CLASSIC 1992-1994 — 2.5L 300 TDi, from VIN JA610294

Alternative Codes

ERR2266RERR2266

In stock 4 units

3 · Gouda 1 · 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 viscous coupling do on a 300TDi?

The viscous coupling is the temperature-controlled fan drive on the 2.5L 300TDi. It sits between the water pump pulley and the cooling fan, gripping harder as under-bonnet temperature rises to drive the fan when cooling demand is high and slipping when it's low.

How do I know the viscous coupling has failed?

A failed coupling usually either seizes, giving a constant roar and a fan that won't spin freely when cold, or goes slack, letting the engine overheat in traffic because the fan no longer drives. Both point to replacement on the 300TDi.

Which models does this viscous coupling fit?

Fits the 2.5L 300TDi in the Defender (1994-1998), Discovery 1 (to VIN MA081992) and Range Rover Classic (from VIN JA610294). Use your VIN to confirm, as the Discovery 1 has a build cut-off.

Where is the viscous coupling located?

It's mounted on the front of the engine between the water pump pulley and the cooling fan, with the fan bolting to the coupling. Replacing it typically needs a large spanner and sometimes a fan clutch holding tool.