Dorman 911-488 Vapor Canister Purge Valve

Overview of Dorman Vapor Canister Purge Valve 911-488

The Dorman 911-488 vapor canister purge valve is designed for reliable emission control in select Lexus and Toyota vehicles. This component plays a critical role in the evaporative system by regulating fuel vapor flow, helping maintain optimal engine performance and reduce emissions.

• Connector hose inside diameter: 0.22 inches
• Single rectangular connector for secure fit
• Durable housing made from both metal and plastic materials
• Two male terminals for electrical connection
• Two ports with 0.33 inch outside diameter each
• Compact length of 2.63 inches with one mounting hole (0.34 inch diameter)
• Includes one vapor canister purge valve per package

Detailed Product Description

The Dorman 911-488 vapor canister purge valve is engineered to meet the specifications required for Lexus GS400, GS430, Land Cruiser, LS400, LS430, LX470, SC400, SC430, Sequoia, and Tundra models. Its dual-material housing combines metal and plastic for enhanced durability and resistance to heat and corrosion. The valve features a single rectangular connector with a 0.22 inch inside diameter hose connection, ensuring a secure and leak-free fit within the evaporative system. Two male terminals provide reliable electrical connectivity, while the two ports with 0.33 inch outside diameters facilitate efficient vapor flow control. The compact 2.63 inch length and single mounting hole simplify installation in tight engine compartments.

Common Applications and Issues Addressed

• Controls fuel vapor purge from the charcoal canister to the intake manifold
• Prevents fuel vapor leaks that can trigger the check engine light
• Helps maintain proper air-fuel mixture for engine efficiency
• Reduces evaporative emissions to comply with environmental regulations
• Resolves rough idle or poor acceleration caused by faulty purge valve operation

Installation Notes and Tips

Installation of the Dorman 911-488 vapor canister purge valve requires no additional mounting hardware, as it includes one mounting hole sized at 0.34 inches. Ensure the electrical connectors are properly aligned with the two male terminals and that the rectangular connector hose fits securely to prevent vapor leaks. It is recommended to inspect the surrounding hoses and connectors for wear or damage during replacement. Proper installation will help maintain the integrity of the evaporative system and engine performance.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 911-488 vapor canister purge valve undergoes rigorous quality control to ensure durability and reliable operation in Lexus and Toyota vehicles. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship to provide confidence in product performance.