Dorman 911-147 Vapor Canister Purge Valve

Direct Replacement Vapor Canister Purge Valve

Dorman 911-147 is a direct replacement vapor canister purge valve for the evaporative emissions system. It is built for a precise fit and plug-and-play installation, with the connector and mounting layout matched to the original equipment design.

Compatible With applications such as Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Impala, Buick Lucerne, and Cadillac DTS, this purge valve supports proper EVAP system operation across a wide range of GM vehicles. The Dorman 911-147 is also cross-referenced to Standard Ignition CP470 and CP560 for the same application.

Key Features

• Direct replacement vapor canister purge valve for EVAP system service
• Plastic housing with an elliptical connector shape
• 2-terminal electrical connection
• 1 vacuum port and 1 vacuum connector
• Mounting layout includes 1 mount hole with a 0.461 in diameter
• Connector hose inside diameter: 0.204 in
• Inlet inside diameter: 0.168 in
• Length: 3.5 in

Detailed Description

This vapor canister purge valve helps regulate fuel vapor flow within the evaporative emissions system and is engineered as a direct OE-style replacement. Dorman 911-147 is shaped for the original mounting location and connector style, which helps simplify replacement on vehicles such as Chevrolet Malibu, Pontiac G6, Buick LaCrosse, and GMC Savana 1500. The part number 911-147 is also used in interchange listings for related applications, making it a practical reference when matching an existing purge valve.

Compatible With 2006-2011 Buick Lucerne, 2006-2011 Cadillac DTS, 2006-2011 Chevrolet Impala, 2007-2013 Chevrolet Silverado 1500, and other listed GM platforms, this valve is intended for vehicles that require a direct-fit EVAP purge valve with the specified connector and port dimensions.

Common Issues This Part Can Address

• EVAP system fault codes related to purge valve performance
• Fuel vapor control problems in the evaporative emissions system
• Rough idle or drivability concerns tied to purge valve malfunction
• Failed emissions inspection caused by purge valve-related faults
• Hard starting or fuel vapor flow irregularities after shutdown

Installation Notes and Tips

Verify connector shape, port diameter, and mounting hole layout against the original part before installation. This valve uses a 2-terminal electrical connection and a single vacuum port, so matching the OE routing is important for proper operation. Confirm vehicle application by year, make, and model before ordering, especially on GM trucks, vans, and passenger cars with shared EVAP components.

Quality Assurance

Dorman manufactures this purge valve as a direct replacement component for evaporative emissions service and states that it fulfills government requirements for the application.