ERR3539G - Vacuum pump - brake system by UnipumpEngine Part Land Rover Range Rover Defender, Discovery, Range Rover

ERR3539G - Brake Vacuum Pump – 300TDi

- €146,00

€146,00

€146,00 - €146,00

€146,00

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 Unipump

Brake Vacuum Pump for the 300 TDi 2.5L turbo-diesel engine, mounted on the engine as part of the brake vacuum circuit.

Driven mechanically by the engine, it generates the negative pressure the brake servo requires for power-assisted braking. A diesel engine produces little usable manifold vacuum, so this pump supplies the servo directly, maintaining consistent assistance across all load conditions.

Supplied as a complete pump assembly.

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

Fitment Notes Defender 1994-2006 — 2.5L 300TDi Diesel Turbo
Discovery 1 1994-1998 — 2.5L 300TDi (from VIN MA081992)
Range Rover Classic 1992-1994 — 2.5L 300TDi (from VIN JA610294)

Alternative Codes

ERR3539ZERR3539ERR3539GERR2027

In stock 5 units

4 · 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 is the brake vacuum pump for on the 300TDi?

It produces the vacuum the brake servo needs for power-assisted braking on the 2.5L 300TDi. Because a diesel engine makes little manifold vacuum, this engine-driven Unipump unit feeds the servo directly for steady brake assistance.

Which models does this OEM vacuum pump fit?

Fits the 2.5L 300TDi in the Defender (1994-2006), Discovery 1 (from VIN MA081992) and Range Rover Classic (1992-1994, from VIN JA610294). Check your VIN where a build cut-off applies.

Do I need a gasket to fit this pump?

The pump mounts to the engine with the ERR2027 gasket, which seals the pump face. Fit a fresh gasket when installing the pump to prevent vacuum and oil leaks at the joint.

What are the symptoms of a failing vacuum pump?

A hard brake pedal and reduced servo assistance are the usual signs, sometimes with oil weeping from the pump body. The 300TDi relies on this pump for braking assistance, so address weak assistance without delay.