{"product_id":"dorman-911-644-secondary-air-injection-control-valve","title":"Dorman 911-644 Secondary Air Injection Control Valve","description":"\u003ch2\u003eOverview of Dorman Secondary Air Injection Control Valve 911-644\u003c\/h2\u003e\u003cp\u003eThe Dorman 911-644 Secondary Air Injection Control Valve is designed to support emission control systems in select Lexus and Toyota vehicles. This valve helps regulate air injection to reduce harmful emissions, ensuring compliance with environmental standards.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Lexus 4Runner, GX470, Land Cruiser, LX470 and Toyota Sequoia, Tundra models\u003c\/li\u003e\n\u003cli\u003eConstructed from durable aluminum and plastic materials\u003c\/li\u003e\n\u003cli\u003eMeasures 6 inches in length with a maximum diameter of 0.76 inches\u003c\/li\u003e\n\u003cli\u003eFeatures two hose connectors and two electrical connectors with male blade terminals\u003c\/li\u003e\n\u003cli\u003eIncludes two mounting holes with a diameter of 0.34 inches each\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications and Features\u003c\/h2\u003e\u003cp\u003eThe Dorman 911-644 valve features a compact design with a length of 6 inches and a maximum diameter of 0.76 inches, making it suitable for tight engine compartments. It has two ports, each with an inside diameter of 0.6 inches, facilitating efficient air flow. The valve includes two hose connectors and two male blade terminals for secure electrical connections. Mounting is supported by two holes, each 0.34 inches in diameter, though mounting hardware is not included. The combination of aluminum and plastic materials ensures a balance of strength and corrosion resistance.\u003c\/p\u003e\u003ch2\u003eFunction and Application\u003c\/h2\u003e\u003cp\u003eThis secondary air injection control valve is essential for managing the air injection system in emission control setups. It helps introduce fresh air into the exhaust stream during cold starts to reduce emissions and improve catalytic converter efficiency.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eReduces cold start emissions by controlling air injection\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to air injection faults\u003c\/li\u003e\n\u003cli\u003eHelps maintain proper engine performance and fuel efficiency\u003c\/li\u003e\n\u003cli\u003eAddresses issues with rough idling caused by faulty air injection valves\u003c\/li\u003e\n\u003cli\u003eSupports compliance with emission regulations for Lexus and Toyota vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman 911-644 valve requires basic mechanical skills and appropriate tools. Ensure the vehicle is cool and the engine is off before beginning. Verify the valve’s fitment with your Lexus or Toyota model, specifically 4Runner, GX470, Land Cruiser, LX470, Sequoia, or Tundra. Since mounting hardware is not included, retain original fasteners or acquire suitable replacements. Check all hose and electrical connections for secure fitment to prevent leaks or electrical faults.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures this secondary air injection control valve to meet or exceed OEM standards. The use of aluminum and plastic materials provides durability and resistance to corrosion. While mounting hardware is not included, the valve is designed for reliable long-term operation. Please refer to Dorman’s warranty policy for specific coverage details related to part number 911-644.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":44329602973877,"sku":"BKKY-911-644","price":193.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_911644_Fro.jpg?v=1775012114","url":"https:\/\/www.partcatalog.com\/products\/dorman-911-644-secondary-air-injection-control-valve","provider":"PartCatalog","version":"1.0","type":"link"}