STC637 - Water Pump – Non-Viscous

- €68,10

€68,10

€68,10 - €68,10

€68,10

OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.

Brand Espare Proflow

Water Pump circulates coolant through the engine cooling circuit, drawing from the radiator and feeding the cylinder block and head to maintain operating temperature.

This is the non-viscous, direct belt-driven pump for the 2.5L 4-cylinder engine in applications without air conditioning. The mounting gasket is included.

Vehicle Model Land Rover Defender up to 2016

Fitment Notes DEFENDER 1987-2006 — 2.5L 4-Cyl NA Diesel & 2.5L 4-Cyl Petrol, without air conditioning, non-viscous drive. Includes gasket.

Alternative Codes

STC637STC637ESBWA45ERC9849ETC4231ETC4618GWP329RTC6331

In stock 3 units

2 · 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 STC637 water pump do on a Land Rover Defender?

The STC637 water pump circulates coolant through the engine, drawing from the radiator and feeding the block and head to control temperature. It fits the Land Rover Defender up to 2016 with the 2.5L 4-cylinder naturally aspirated diesel or 2.5L petrol engine, on applications without air conditioning.

What's the difference between the non-viscous and viscous water pump?

The non-viscous pump is direct belt-driven, unlike the viscous type that drives the fan through a coupling. The STC637 is the non-viscous version for the 2.5L 4-cylinder Defender without air conditioning. Confirm your engine's drive type before ordering, as the two aren't interchangeable.

Does the STC637 fit Defenders with air conditioning?

No, the STC637 is for 2.5L 4-cylinder Defenders without air conditioning. Air-con applications typically use a different pump and drive arrangement. Check your engine specification before ordering, as fitting the wrong pump can affect belt routing and cooling on the Defender up to 2016.

What are the signs the water pump needs replacing?

Common signs include coolant leaking from the pump's weep hole, a whine or rumble from a worn bearing, and overheating. On the 2.5L Defender engine a failing pump can cause coolant loss and engine damage if ignored. Replacing it during a timing belt change is typical practice.