Dorman 984-886 Vapor Canister

Dorman 984-886 Vapor Canister

This Dorman vapor canister is built to match the original equipment evaporative emissions canister on select Chevrolet Silverado and GMC Sierra heavy-duty trucks. It helps restore evaporative system function with an OE-style plastic housing, carbon filter media, and the correct port layout for the listed applications.

Key Features

• OE-style replacement vapor canister for evaporative emissions repair
• Plastic housing with black finish
• Carbon and foam filter element materials
• 3-port design with 0.37 in and 0.62 in port outside diameters
• Length: 12.5 in
• No mounting hardware included
• Part number: 984-886

Detailed Description

Dorman 984-886 is a direct-fit vapor canister for select 2011-2016 Chevrolet Silverado 2500 HD, 2011-2016 Chevrolet Silverado 3500 HD, 2011-2016 GMC Sierra 2500 HD, and 2011-2016 GMC Sierra 3500 HD applications. It is engineered to match the original evaporative emissions canister layout, helping restore proper fuel vapor storage and routing in the EVAP system. This part cross-references Standard Ignition CP3543 for the same application.

What It Helps Address

• EVAP system leak codes related to a damaged canister
• Fuel vapor odor from a cracked or saturated canister
• Improper vapor storage in the evaporative emissions system
• Check engine light concerns tied to emissions control faults
• Restoration of factory-style vapor routing on Silverado and Sierra trucks

Installation Notes and Tips

Verify port size, hose routing, and mounting location against the original unit before installation. Transfer any vehicle-specific hoses or fittings as required by the application. Because mounting hardware is not included, reuse existing hardware if serviceable or source the correct fasteners separately. Confirm all EVAP connections are fully seated and inspect the system for leaks after installation.

Quality Assurance

Dorman manufactures this vapor canister to match OE fit and function for the listed Chevrolet Silverado and GMC Sierra applications. The design uses carbon-based filter media and a plastic housing to support proper evaporative emissions control restoration.