Dorman 911-387 Vapor Canister Purge Valve

Overview of Dorman Vapor Canister Purge Valve 911-387

The Dorman 911-387 vapor canister purge valve is designed specifically for Toyota Yaris models, ensuring precise control of fuel vapor emissions. This component plays a critical role in the evaporative emission control system by regulating the flow of fuel vapors from the charcoal canister to the engine intake manifold.

• Connector hose inside diameter: 0.325 inches
• Single elliptical connector shape for secure fitment
• Durable plastic housing material
• Two male terminals for reliable electrical connection
• Inlet inside diameter of 0.21 inches
• Overall length of 2.56 inches
• One mounting hole with 0.275 inch diameter
• Includes mounting bracket and hardware
• Two ports with 0.325 inch outside diameter each
• Thread diameter of 0.25 inches for secure installation

Detailed Product Description

The Dorman 911-387 vapor canister purge valve is engineered to meet the specifications required for Toyota Yaris vehicles. Its plastic housing provides resistance to corrosion and heat, while the elliptical connector ensures a tight and secure hose connection. The valve features two male terminals that facilitate a stable electrical interface, essential for proper valve operation. With a length of 2.56 inches and a single mounting hole, installation is straightforward and compatible with the original equipment mounting points. The included mounting bracket and hardware simplify replacement, reducing installation time.

Function and Common Applications

This vapor canister purge valve is a vital component in the evaporative emission control system, helping to reduce harmful fuel vapor emissions and improve engine efficiency. It is commonly used to address issues such as:

• Check engine light triggered by EVAP system faults
• Rough engine idle caused by improper vapor flow
• Failed emissions tests due to vapor leaks
• Fuel odor around the vehicle from vapor leaks
• Reduced fuel economy linked to purge valve malfunction

Installation Notes and Tips

When installing the Dorman 911-387 vapor canister purge valve on a Toyota Yaris, ensure the following:

• Disconnect the battery before beginning installation to prevent electrical shorts
• Verify the elliptical connector hose fits securely over the 0.325 inch diameter port
• Use the included mounting bracket and hardware to secure the valve firmly in place
• Check electrical connections for proper engagement of the two male terminals
• Inspect vacuum lines and connectors for damage or wear during replacement

Quality Assurance and Warranty

Dorman manufactures the 911-387 vapor canister purge valve to meet or exceed OEM standards for fit, form, and function. The plastic housing and electrical terminals are designed for durability under typical operating conditions. This part includes a warranty that covers defects in material and workmanship, providing confidence in its reliability for Toyota Yaris evaporative system repairs.