Description: Express, savana. Cargo, passenger van. Without diesel. Long bed. Silverado, sierra. 8 ft. box. Helps reduce harmful pollutants from entering the atmosphere Captures fuel vapors to be re-burned in the engine This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Description: Regular cab. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Description: Regular cab. 8 ft. box. Silverado, sierra. Crew cab. Controls fresh air flow to the canister Sends fuel vapors to the engine for re-burn Helps control fuel tank pressure This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Description: The purge valve controls the flow of fuel vapor from the vapor canister to the intake manifold.GM Original Equipment Vapor Canister Purge Valves are GM-recommended replacements for your vehicle's original components.

Description: GM Genuine Parts Vacuum Pumps are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These vacuum pumps provide a source of vacuum power for emission controls, and may be electrically or mechanically operated, depending on vehicle application. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles.