Engine Crankshaft Seal, Rear

Seals the openings on either end of the crankshaft for a tight seal Withstands heat and pressure to help prevent the engine from leaking oil This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type

Engine Cylinder Head Gasket Set

All models. Astro, Safari. 4.3l. S-series, Bravada.

Engine Cylinder Head Gasket

S-series. All models. Astro, Safari. Express, savana. Silverado, sierra. 4.3l. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Engine Timing Chain

Synchronizes the rotation of the crankshaft and the camshaft(s) to help ensure that the engine's valves open and close at the proper time during each cylinder's intake and exhaust strokes