How to Choose a Diesel Fuel Pump

The short answer: choose a diesel fuel pump by matching it to your engine code, not just your vehicle model, and confirm the fault with a specialist before replacing it.

What does a diesel fuel pump do?

The fuel pump moves diesel from the tank toward the engine. On many diesel engines a high pressure fuel pump then raises that fuel to the very high pressure the injectors need to atomise it properly.

What are the symptoms of a failing diesel fuel pump?

Hard starting, long cranking, loss of power, surging under load, rough running, stalling, and worse fuel economy. These can also be caused by filters, injectors or air in the system, so a diagnosis should come before a replacement.

How do I choose the right diesel fuel pump?

1. Find your engine code on the engine plate or in your vehicle documentation (for example 1KD or 2KD).
2. Match the pump's part number to that engine code.
3. Check whether you need a lift pump or a high pressure pump.
4. If you're unsure, send your vehicle make, model, year and engine code to Diesel Fuel Parts and ask us to help confirm the correct part.

Should I replace the fuel filter at the same time?

It is sensible to check and, where needed, replace the fuel filter when replacing a pump, because contaminated fuel is a common cause of pump wear.

Who should install the pump?

Diesel Fuel Parts supplies parts only and does not offer fitment. We recommend having the pump installed by a qualified diesel professional, so the new part is not compromised in any way.

Not sure which pump you need? WhatsApp us on +27 72 364 6774 with your vehicle details and we'll help you confirm the correct part.

Browse our diesel fuel pumps.