Dorman 994-468 Vapor Canister

Dorman 994-468 Vapor Canister

Dorman 994-468 is a replacement vapor canister for evaporative emissions systems on select Chevrolet, Buick, and Pontiac vehicles. It is built to match the original equipment evap canister design and restore emissions control function on the listed applications.

• OE-style vapor canister for evaporative system repair
• Plastic housing with black finish
• Charcoal filter element material
• 3 ports for evaporative system connections
• Filter elements included
• Length: 10.94 in.
• Port outside diameters: 16.12 mm, 16.77 mm, and 9.58 mm

Fitment Coverage

Compatible with 2005-2010 Buick Allure, 2005-2009 Buick LaCrosse, 2005-2008 Pontiac Grand Prix, 2006-2011 Chevrolet Impala, 2006-2007 Chevrolet Monte Carlo, 2007-2010 Chevrolet Impala with Federal Emissions, 2007-2009 Buick LaCrosse with Federal Emissions, 2007-2008 Pontiac Grand Prix with Federal Emissions, 2007 Chevrolet Monte Carlo with Federal Emissions, 2012-2013 Chevrolet Impala without PZEV California Emissions, and 2014-2016 Chevrolet Impala Limited.

This part cross-references Standard Ignition CP3178 for the same application.

What It Does

• Restores evaporative emissions system function when the original canister is damaged or saturated
• Addresses EVAP-related fault codes tied to vapor storage and purge flow issues
• Helps correct fuel vapor containment problems that can trigger a check engine light
• Supports proper emissions control on Chevrolet Impala, Buick LaCrosse, Buick Allure, and Pontiac Grand Prix applications

Installation Notes

Verify the vehicle’s emissions configuration before ordering, especially Federal Emissions and California emissions notes. Match the port layout, housing dimensions, and connection sizes to the original canister on the vehicle. Confirm all EVAP hoses and electrical connectors are routed correctly during installation.

Quality Assurance

This Dorman vapor canister is engineered to match the original equipment evap canister on the listed vehicles and restore emissions control performance. Part number 994-468 is built for direct replacement use on the specified applications.