{"product_id":"dorman-911-976-secondary-air-injection-check-valve","title":"Dorman 911-976 Secondary Air Injection Check Valve","description":"\u003ch2\u003eOverview of Dorman Secondary Air Injection Check Valve\u003c\/h2\u003e\u003cp\u003eThe Dorman 911-976 Secondary Air Injection Check Valve is designed to maintain proper air flow within the emission control system of select BMW models. Engineered from cast aluminum with a gray finish, this valve supports efficient operation under a wide range of temperatures and pressures.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from durable cast aluminum for long-lasting performance\u003c\/li\u003e\n\u003cli\u003eGray color\/finish for corrosion resistance and visual identification\u003c\/li\u003e\n\u003cli\u003eInlet and outlet size of 0.83 inches for precise fitment\u003c\/li\u003e\n\u003cli\u003eMaximum pressure rating of 50 psi to handle emission system demands\u003c\/li\u003e\n\u003cli\u003eReed valve type ensuring reliable one-way air flow\u003c\/li\u003e\n\u003cli\u003eOperates effectively within a temperature range of -40°C to 125°C\u003c\/li\u003e\n\u003cli\u003eIncludes one secondary air injection control valve and one gasket for installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman 911-976 secondary air injection check valve plays a critical role in the emission control system by preventing exhaust gases from flowing back into the air injection system. Made from cast aluminum, this valve offers strength and resistance to heat and corrosion, which is essential for maintaining system integrity. The reed valve design allows air to flow in one direction only, supporting the reduction of harmful emissions during cold engine starts. With inlet and outlet sizes both at 0.83 inches, it ensures a secure and proper connection within the air injection system. The valve is rated to withstand pressures up to 50 psi and functions reliably across a broad temperature range from -40°C to 125°C, making it suitable for the demanding conditions found in BMW 545i, 645Ci, 745i, and 745Li models.\u003c\/p\u003e\u003ch2\u003eCompatible BMW Models and Applications\u003c\/h2\u003e\u003cp\u003eThis secondary air injection check valve is compatible with the following BMW vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBMW 545i\u003c\/li\u003e\n\u003cli\u003eBMW 645Ci\u003c\/li\u003e\n\u003cli\u003eBMW 745i\u003c\/li\u003e\n\u003cli\u003eBMW 745Li\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is specifically designed to meet the emission control requirements of these models, ensuring proper air injection system function and compliance with environmental standards.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Check Valve\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents backflow of exhaust gases into the air injection system\u003c\/li\u003e\n\u003cli\u003eHelps reduce emissions during cold starts\u003c\/li\u003e\n\u003cli\u003eMaintains proper air pressure within the secondary air injection system\u003c\/li\u003e\n\u003cli\u003ePrevents damage to other emission control components caused by reverse flow\u003c\/li\u003e\n\u003cli\u003eSupports engine performance by ensuring correct air injection timing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the gasket included is properly seated to prevent leaks\u003c\/li\u003e\n\u003cli\u003eVerify inlet and outlet sizes match the vehicle’s air injection system tubing\u003c\/li\u003e\n\u003cli\u003eInspect surrounding components for wear or damage during installation\u003c\/li\u003e\n\u003cli\u003eFollow manufacturer torque specifications to avoid overtightening\u003c\/li\u003e\n\u003cli\u003eTest the valve operation after installation to confirm proper air flow direction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the 911-976 secondary air injection check valve to meet or exceed OEM standards for fit, form, and function. The cast aluminum construction and reed valve design contribute to reliable performance under typical operating conditions. While specific warranty details may vary, Dorman products generally include coverage against defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":44329679716533,"sku":"BKKY-911-976","price":119.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_911976_Ang_349d9ff0-b557-418b-ad96-3621973043f5.jpg?v=1775012158","url":"https:\/\/www.partcatalog.com\/products\/dorman-911-976-secondary-air-injection-check-valve","provider":"PartCatalog","version":"1.0","type":"link"}