High Pressure Fuel Pump – VW Golf Mk5 1K – 2004-2009 – 06H127025N

Replace your failing fuel pump — also called a fuel feed pump or lift pump — on the Volkswagen Golf MK5 1K (2004–2009) with this OEM-spec direct fit. Matching part numbers 06H127025N, 06H127025Q, 06H127025R, 06H127025M and 06H127025P. Also fits equivalent Audi, Seat and Skoda models.

Common signs of failure

A failing fuel pump typically causes the engine to crank but not start, intermittent stalling at speed, loss of power under load (especially uphill), sputtering at high RPM, and a low fuel pressure fault code. Drivers often report a noticeable whining or buzzing from the tank area before the pump finally fails. On modern direct-injection cars, the low-pressure (tank) pump feeds the high-pressure pump — both can fail.

Fitment notes

Direct-fit replacement to the original mounting point — typically inside the fuel tank via the service hatch, or externally on older diesels. Replace the seal/O-ring on the tank-mounted units as part of the job to avoid leaks. After fitting, cycle the ignition a few times to prime the system before cranking.

Frequently asked questions

How do I know if my fuel pump is failing?

Whining noise from the tank, extended cranking, stalling at speed, and low fuel pressure readings on a diagnostic scan tool are the classic symptoms. A pressure-test gauge connected to the rail gives definitive evidence.

Is this an in-tank or external pump?

Match the OEM number to your existing pump's part number to be sure. Most modern petrol vehicles use in-tank pumps; many older diesels use external lift pumps.

Do I need to prime the system after fitting?

Cycle the ignition 3–5 times before cranking to allow the new pump to prime the lines. The engine should then start within normal crank time.