Head Gasket

All models. Left. Grade c. Express, savana. Sierra, silverado. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Head Gasket

All models. Right. Express, savana. Sierra, silverado. Grade C. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Head Gasket

All models. Left. Grade b. Express, savana. Sierra, silverado. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Valve Cover

All models. Lower. 6.6L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Valves

All models. Intake. Express, savana. Sierra, silverado. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Valve Seals

All models. Express, savana. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Valve Spring Seats

All models. Upper. Express, savana. Sierra, silverado.

Valve Keeper

All models. Express, savana. Sierra, silverado. Spectrum. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Rocker Arms

All models. Exhaust. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Push Rods

All models. Express, savana. Sierra, silverado. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors .

Valve Lifters

All models. Express, savana. Sierra, silverado. Adjusts the valves on your vehicle's engine for proper performance Manufactured to GM OE specification for fit, form, and function

Front Cover Seal

All models. Express, savana. 2017-19. 6.6L diesel, upper components. 2015-16. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Helps prevent leaks in various components of your vehicle 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

Timing Gear Set

All models. Crankshaft gear. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Drive

All models. Front of crankshaft. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Piston

All models. Right. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors .

Connecting Rod

All models. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Bearings

Set Per Journal. All models. Bearing kit. Blue. Silverado, sierra. Express, savana.

Bearings

All models. Bearing kit. Color-Black. Set Per Journal. Sierra, silverado. Express, savana. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

All models. Thrust bearing. Front. Sierra, silverado. Express, savana.

Rear Main Seal

All models. Express, savana. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. 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 ...

All models. Sierra, silverado. Express, savana. Lower (oil pan). 6.6L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Oil Pump

All models. Express, savana. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors .