Description: Express, savana. Commercial cutaway. Short bed. Silverado, sierra. 6 ft. box. Double & crew cab. Bed Length 68.4. 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: Help measure pressure changes within fuel tank Help alert engine management computer if a leak occurs in fuel system

Description: GM Original Equipment Vapor Canister Purge Valves are GM-recommended replacements for your vehicle's original components. The purge valve controls the flow of fuel vapor from the vapor canister to the intake manifold. These original equipment vapor canister purge valves have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.Superseded from 12597567. 

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: This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle
Detects oxygen content in the exhaust gases to help optimize emissions
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Description: This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle Detects oxygen content in the exhaust gases to help optimize emissions This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors