Dorman 911-021 Vapor Canister Vent Solenoid

Dorman 911-021 Vapor Canister Vent Solenoid

The Dorman 911-021 vapor canister vent solenoid is a specific-fit replacement for evaporative emissions systems that need accurate vent control. It is built from durable materials and addresses a common cause of check engine light concerns tied to EVAP system operation.

Key Features

• Specific-fit vapor canister vent solenoid for direct replacement use
• Plastic housing for application-matched construction
• 2 blade connector configuration with 2 connectors
• Engineered for proper operation of the vehicle’s evaporative emissions system
• Fits a wide range of Chevrolet, GMC, Cadillac, and Hummer applications, including Silverado 3500 HD, Sierra 3500 HD, Express van, Savana van, Tahoe, Yukon, and H2 models

Detailed Description

This Dorman vapor canister vent solenoid, part number 911-021, is made for vehicles that use a round canister mounting style and require a specific-fit EVAP vent valve. It is a practical replacement for Chevrolet Silverado 3500 HD, GMC Sierra 3500 HD, Chevrolet Express and GMC Savana vans, Cadillac Escalade models, and other listed applications from 2003-2010. This part cross-references Standard Ignition CVS6 for the same application.

By restoring vent solenoid function, the 911-021 helps maintain proper evaporative emissions system control and supports accurate fault detection in the EVAP circuit. It is a direct-fit service part for vehicles such as the Chevrolet Malibu, GMC Yukon XL 2500, and Hummer H2 where the original vent valve has failed or is no longer operating correctly.

What It Helps Solve

• Check engine light caused by a failed vapor canister vent solenoid
• EVAP venting faults related to stuck or nonresponsive vent control
• Emissions system issues on Chevrolet, GMC, Cadillac, and Hummer vehicles
• Replacement needs for round-canister vent valve applications without a filter assembly
• Service concerns on vehicles with worn electrical connectors or degraded solenoid housings

Installation Notes and Tips

Installation follows the OE-style procedure noted by Dorman: remove the old solenoid from the round canister by lifting the tab and rotating it, then install the new solenoid in the same position and rotate it into the tab to lock it in place. Verify the vehicle uses the correct valve style and note the application details for systems without a filter assembly where specified. Compatible With 2003-2010 Chevrolet Express 1500, 2003-2010 Chevrolet Express 2500, 2003-2010 Chevrolet Express 3500, 2004-2010 Chevrolet Malibu, 2004-2010 GMC Yukon XL 2500, and related listed applications.

Quality Assurance

Dorman manufactures this vent solenoid with quality materials to support durability and proper EVAP system operation. The part number 911-021 is built as a specific replacement for the listed vehicle applications and connector configuration.