What is the BMW M20B25 engine?

The BMW M20B25 is a 2.5 liter (2,494 cc) petrol engine from the M20 family. It has an inline 6, SOHC, 12 valve layout with no turbo (naturally aspirated), and makes 126 kW (171 HP) with 226 Nm of torque. BMW built it from 1985 to 1993 and it meets the Euro 1 emission standard.

You find the M20B25 in the BMW E30 325i, BMW E30 325is, BMW E28 525i, BMW E34 525i and BMW Z1. What we list: BMW M20 small-six petrol engines for E30 and E28.

At Autowerke Engines every M20B25 is a real used engine from our yard in Hamburg. The photos on each listing show the actual engine, not a stock picture. The yard checks the code, records what is bolted on, and seals the openings before the engine is offered. Each listing shows the year, the mileage and the price, so you can compare units side by side.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.