GM Genuine Parts Vapor Canister Vent Solenoids are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These solenoids communicate with the valve to open and close, allowing air to pass in and out of the vapor canister vent. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). Controls fresh air flow to the canister Sends fuel vapors to the engine for re-burn Helps control fuel tank pressure Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE) GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle GM regularly updates production and service part designs to integrate new materials and technologies Package Dimensions: 25.88 x 10.38 x 4.62 inches Package Weight: 0.79 lb Package Quantity: 1 National Popularity Code : D Connector Gender: Female Connector Quantity: 1 Connector Shape: Rounded Square Meets or Exceeds Original Equipment Manufacture Specifications: Yes Port 2 Inside Diameter: 0.645 IN Port 2 Inside Diameter: 16.380 MM Port Outside Diameter: 0.645 Port Outside Diameter: 16.380 MM Port Quantity: 2 Programming Required: NO Terminal Gender: Male Terminal Quantity: 2 Terminal Type: Blade Pin Universal Or Specific Fit: Specific Vintage Part Indicator: N Wiring Harness Included: No