One pair of GM Performance Main Bearings for Gen V LT Engines, Part #12656812. Fits the #1,2,4, and 5 main journals. 4 required for a full set plus thrust bearing.
GM Performance main bearings are OEM replacements made to stand up to the demanding operating conditions, high heat, and strenuous loads of today's engines. These main bearings are constructed from high-quality materials for exceptional fatigue strength and wear rates. You can depend on GM Performance for high-quality, reliable replacement parts to keep your engine running strong.