Dorman 911-421 Vapor Canister Vent Solenoid

Vapor Canister Vent Solenoid for EVAP Control

Dorman 911-421 is a specific-fit vapor canister vent solenoid for the evaporative emissions system. It is built with durable materials to help restore proper vent control and address an illuminated engine light tied to EVAP system faults.

• Specific-fit replacement for select applications
• Blade terminal design with 2 terminals
• Female connector interface with elliptical connector shape
• Plastic housing in black and gray finish
• 2-port design with port outside diameters of 0.634 in. and 0.65 in.
• Wiring harness not included
• Terminal/connector configuration: 2 blade

Detailed Product Information

This Dorman vapor canister vent solenoid, part number 911-421, is engineered for the evaporative emissions system on select Buick Terraza, Chevrolet Uplander, and Pontiac Montana models. It helps control vapor flow through the EVAP system so the vehicle can manage fuel vapors correctly and maintain proper emissions-system operation. This part cross-references Standard Ignition CVS8 for the same application.

Common Symptoms It May Address

• Check engine light related to EVAP system codes
• Faulty vapor canister vent control
• Improper fuel vapor sealing or venting
• Emissions test failure caused by vent solenoid issues
• EVAP system performance problems on Buick Terraza, Chevrolet Uplander, or Pontiac Montana

Installation Notes and Tips

Verify connector style, terminal count, and port dimensions before installation. This is a specific-fit replacement, so confirm vehicle application details for 2005-2006 Buick Terraza, 2005-2006 Chevrolet Uplander, and 2005-2006 Pontiac Montana. No wiring harness is included, and the part uses a 2-blade terminal configuration.

Quality Assurance

Dorman manufactures this vent solenoid with quality materials to support durability and consistent EVAP system operation. Part number 911-421 is built as a direct replacement style component for the listed applications.