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. 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