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STC635 - Water pump 90/110 viscous by AllmakesEngine Part Land Rover Range Rover Defender, Series

STC635 - Water Pump – Viscous – 4-Cyl Non-TDi

- €73,00
€73,00
€73,00 - €73,00
€73,00
Aftermarket Part
Aftermarket: Quality alternative. This is a quality alternative, designed to fit and function like the original part, often at a more competitive price.
Water Pump for the engine cooling circuit of the 2.5L 4-cylinder naturally aspirated diesel, petrol and pre-TDi turbo diesel engines. Belt-driven from the front of the engine, it circulates coolant through the block, cylinder head and radiator to hold the engine at its operating temperature.

This is the viscous-type pump used on installations fitted with air conditioning and the A127 65A alternator, and accepts a viscous fan coupling on its drive flange.

A gasket seals the pump to the front cover; some pump variants are supplied with this gasket while others require it separately.
Vehicle Model Land Rover Defender up to 2016
Land Rover Series 2 and 3
Fitment Notes DEFENDER 1987-2006 — Viscous water pump, 2.5L 4-cyl NA diesel / petrol / turbo diesel (pre-TDi), with air conditioning (A127 65A alternator). Some variants include gasket
Alternative Codes
STC635BR 2388ETC4594ETC4603RTC6330RTC6332STC448

In stock 1 unit
0 · 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 STC635 water pump do?
The STC635 water pump circulates coolant through the block, cylinder head and radiator on the 2.5 litre 4-cylinder engine, keeping it at operating temperature. It's the viscous-type pump, belt-driven from the front of the engine, and accepts a viscous fan coupling on its drive flange.
How do I know if I need the viscous STC635 pump or another version?
The STC635 is the viscous water pump used on the 2.5 litre 4-cylinder Defender when it's fitted with air conditioning and the A127 65A alternator. If your vehicle has that setup and takes a viscous fan coupling, this is the correct pump. Check your alternator and fan type before ordering.
Does the STC635 come with a gasket?
Some STC635 pumps include the front cover gasket and some don't, so check the listing or inspect the pump on arrival. A gasket seals the pump to the front cover on the 2.5 litre engine, and you'll need one to refit the pump. Have a spare gasket ready in case it's supplied bare.
What are the signs the STC635 water pump needs replacing?
Common signs are coolant weeping from the pump's weep hole, a bearing rumble or whine from the front of the engine, or the 2.5 litre engine running hot. A failing viscous water pump can cause overheating and head gasket damage if it's left, so replace it once these symptoms show.

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