Diesel Injectors

A diesel injector sprays fuel into the engine's combustion chamber at high pressure in a precise pattern. Diesel Fuel Parts supplies diesel injectors for popular diesel engines, with pricing shown clearly on each product.

Signs your diesel injectors may be worn or leaking

• Rough idling
• Excess smoke
• Poor fuel economy
• Hard starting

These symptoms can have other causes, so have the injectors tested before replacing them.

How to choose the right diesel injector

Injectors are engine-specific, so check that the part number matches your engine code before ordering. In most cases injectors should be replaced or tested as a set, so that fuel delivery stays even across all cylinders.

Read our guides: common rail vs unit injectors and reman vs new diesel parts.

Need help choosing the correct part?

If you provide your vehicle make, model, year and engine code and ask us, we'll help you confirm the correct injector for your vehicle before you order. WhatsApp us on +27 72 364 6774.

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

Diesel injector FAQs

How do I know if my diesel injectors are bad?
Rough idling, visible smoke, hard starting and reduced fuel economy are common signs. A diesel specialist can test the injectors to confirm.

Should I replace all diesel injectors at once?
In most cases injectors are replaced or tested as a set, because mixing worn and new injectors can leave fuel delivery uneven.

How do I find the right injector for my engine?
Use your engine code and the part number as your guide. If you're unsure, send us your vehicle details and ask for help confirming the correct part.

Do you install diesel injectors?
No. Diesel Fuel Parts supplies parts only and does not offer fitment. We recommend having every part installed by a qualified diesel professional so the new part is not compromised.