BMWengines

BMW engines by engine code

Every engine in our stock is listed with its engine code. These BMW codes are currently in stock – click one to see all matching engines:

• B48B20B X4 (G02) 30IX
• N13B16A
• B38A15A
• B57D30B
• N20B20B

Typical BMW engines

BMW engines are identified by a code of letters and numbers: B stands for the modular family since 2014 (B38 three-cylinder, B48 four-cylinder petrol, B47 and B57 diesels), N for the previous generation (N13, N20, N47, N57). The 2.0-litre turbo petrol B48B20B – fitted among others as the 30i in the 3 Series G20, 4 Series G22, 5 Series G30, X3, X4 and Z4 – is in stock here in larger numbers as a new engine. We also carry four-cylinder diesels and engines for the 1 and 2 Series. In detail: BMW B48 engine.

Used, reconditioned or new?

For used BMW engines we state mileage and year where known; every engine is tested before dispatch and comes with a 12-month warranty. Reconditioned engines have been professionally overhauled and tested – also 12 months. New engines with 0 km carry a 24-month warranty. On every engine we charge a core deposit of usually €500, refunded when your old engine is returned. Which option makes sense for you is explained in Used or remanufactured engine?; on the deposit: Core deposit explained.

How to find the right BMW engine

The engine code (e.g. B48B20B or N47D20A) is stamped into the block, usually at the front left below the cylinder head. Compare the code with the one in our product title – or send us your VIN and we will check which engine fits. Full details in our guide Finding your engine code.

Frequently asked questions about BMW replacement engines