BMW 3 Series Engine Parts

Aftermarket Engine Parts for BMW 3 Series

Our engine parts range for the BMW 3 Series covers all major model years and engine variants currently in stock. To confirm the exact engine part that fits your specific trim and engine, enter your registration in the box above.

When to replace

Engine parts cover timing belts and chains, water pumps, alternators, starters, gaskets and seals. Many are service-interval items where catching wear early prevents bigger failures down the line.

About the BMW 3 Series

The 3 Series in E90, E91, F30, F31 and G20 generations covers a huge range of UK driveways. The 318d, 320d and 320i are the most common engine variants, with petrol and diesel both well supported.

How fitment works

Specifications vary between trim levels and engine variants — confirm part dimensions against the existing component before fitting. Our reg-lookup checks our fitment database (built from ktype-mapped OE references) and shows only parts verified to fit your exact vehicle.

Stock and delivery

All parts are stocked in the UK and dispatched the same business day where available. Returns are handled under our standard returns policy — see the policy pages linked in the footer.