Standard dimension tri-metal crankshaft bearings for BMW M3

Set of standard dimension crankshaft bearings for:
- S50B30 & S50B32 (E36 M3, Z3 M)
- S54B32 (E46 M3, Z3 M) Designed to withstand high temperatures and greater stress, these highly resistant bearings consist of three layers of tempered steel, copper and nickel.
This 'tri-metal' composition clearly reduces friction, thus reducing running temperatures while assuring better lubrication than the original parts