BMW engine & drivetrain parts

The biggest and most expensive category. Use the fitment finder to filter down to your engine code, then compare aftermarket, OE-supplier and genuine parts before you book any labour. Everything below is adjusted for BMW, a premium-tier brand.

Pick your BMW model

BMW engine & drivetrain job costs (US)

JobPartsTotal
BMW oil and filter change$40–$160$85–$315
BMW spark plug replacement$35–$245$100–$825
BMW timing belt replacement$175–$745$565–$2,295
BMW water pump replacement$80–$540$305–$1,705
BMW clutch replacement$270–$1,285$715–$3,030
BMW transmission fluid service$95–$430$205–$1,010

Fitment checklist for BMW

Engine code beats model year

One model year often covers three or four engines. The engine code on the VIN plate is the only reliable filter.

Buy timing components as a kit

Belt, tensioner, idlers and water pump share the same labour. Kits are cheaper than the individual parts and keep wear matched.

Match fluid specifications exactly

Oil and ATF specifications are approvals, not suggestions. The wrong spec voids warranties and can destroy a gearbox.

Frequently asked questions

How often should a timing belt be replaced?
Typically every 60,000–100,000 miles or 5–7 years, whichever comes first. Chains are usually lifetime but not always.
Is aftermarket as good as genuine?
OE-supplier brands make the same part that goes in the genuine box, without the manufacturer markup. Unbranded no-name parts are the ones to avoid.
Are BMW engine & drivetrain parts expensive?
BMW sits in the premium tier, so genuine parts carry a premium. OE-supplier brands make the same components without the badge markup.

Other BMW part categories

Engine & drivetrain for other brands