Direct Replacement for 12612350, OS30693R, PG3165, 12558760, OS32241, OS21006, OS6315P, 2005-481851, OS6315 Engineered for Reliable Sealing and Long-Lasting Performance Fits GM V8 Engines 4.8L to 6.2L (LS1, LS2, LS3, LS6, LM7, LQ4, LQ9) Compatible with Chevrolet Silverado, Suburban, Tahoe, Avalanche, Colorado, Camaro, Express, Trailblazer, Caprice, Impala; GMC Sierra, Yukon, Savana, Envoy, Canyon; Cadillac Escalade