STD Crankshaft Main Bearing Kit Fits for Buick for Chevy GMC for Cadillac for Pontiac for Saab for Saturn 2.8L 3.0L 3.6L Engine, Replaces 12648786, 12643671
The main bearing's functions is reducing friction between the crankshaft and the crankcase and ensuring that the crankshaft is functioning properly, providing stable support even when rotating at high speeds.
The main bearings set is made of high quality material, which are not easy to damage, wear-resistant and rust-resistant, stable and reliable performance, colorfast and durable, long service life.
The crankshaft main bearings are easy to install, no need for complicated tools, easy to use, direct replacement for your old or broken one.