Complete used OEM BMW engines and long blocks pulled from our own dismantled donor cars — N-series, B-series and S-series (N52, N54, N55, N63, B46, B48, B58, S55, S63 and more). Many are compression-tested and documented on video, and every engine is backed by our 30-day warranty. Not sure which engine your car takes? Send us your VIN and we'll confirm the exact match before you buy.