ACL main bearings BMW M20 1977–1988

ACL main bearings for BMW M20 engines from 1977–1988. The main bearings support the crankshaft in the engine block and ensure correct rotation, oil pressure and stable operation.

ACL bearings are suitable for engine rebuilds, conversions and performance builds where strong and precise engine bearings are required. Correct bearing clearance and proper installation are essential for engine life and reliability.

Always check crankshaft dimensions, bearing clearance and oil tolerances before installation. Incorrect installation or incorrect bearing clearance can cause serious engine damage.