{"product_id":"dorman-911-170-secondary-air-injection-check-valve","title":"Dorman 911-170 Secondary Air Injection Check Valve - Right","description":"\u003ch2\u003eReliable Secondary Air Injection Check Valve for Subaru Vehicles\u003c\/h2\u003e\u003cp\u003eThe Dorman 911-170 Secondary Air Injection Check Valve is engineered to maintain optimal emission control in select Subaru models. Designed with durable cast aluminum and a precise valve mechanism, this part supports efficient air injection system performance in the Forester, Impreza, and WRX STI.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from cast aluminum for strength and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eBlack and silver finish for durability and visual inspection\u003c\/li\u003e\n\u003cli\u003e1 inch inlet and 0.5 inch outlet sizes for exact fitment\u003c\/li\u003e\n\u003cli\u003eMaximum pressure rating of 15 psi to handle system demands\u003c\/li\u003e\n\u003cli\u003eOperates reliably within a temperature range of -40°C to 125°C\u003c\/li\u003e\n\u003cli\u003eIncludes one secondary air injection check valve and one gasket for installation\u003c\/li\u003e\n\u003cli\u003eCheck valve type designed to prevent backflow in the air injection system\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDurable Design and Precise Fitment for Subaru Emission Systems\u003c\/h2\u003e\u003cp\u003eThe Dorman 911-170 is specifically designed for Subaru Forester, Impreza, and WRX STI models, ensuring compatibility with their secondary air injection systems. The cast aluminum construction offers resistance to heat and corrosion, critical for emission control components exposed to harsh engine conditions. The valve’s inlet and outlet sizes match factory specifications, allowing for straightforward replacement without modification. Its pressure rating of 15 psi supports the air injection system’s operational requirements, while the included gasket ensures a secure, leak-free installation.\u003c\/p\u003e\u003ch2\u003ePurpose and Common Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents exhaust gas backflow to maintain emission system efficiency\u003c\/li\u003e\n\u003cli\u003eHelps reduce harmful emissions by supporting secondary air injection\u003c\/li\u003e\n\u003cli\u003eResolves check valve failure symptoms such as engine warning lights or failed emissions tests\u003c\/li\u003e\n\u003cli\u003eEliminates air injection system leaks that can cause rough idling or poor engine performance\u003c\/li\u003e\n\u003cli\u003eRestores proper air flow to the catalytic converter for cleaner exhaust output\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the engine is cool before beginning installation to avoid injury\u003c\/li\u003e\n\u003cli\u003eUse the included gasket to prevent air leaks and ensure a tight seal\u003c\/li\u003e\n\u003cli\u003eVerify inlet and outlet orientation matches the original valve for correct airflow direction\u003c\/li\u003e\n\u003cli\u003eInspect surrounding hoses and connections for wear or damage during replacement\u003c\/li\u003e\n\u003cli\u003eTighten fittings to manufacturer torque specifications to avoid damage or leaks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the 911-170 Secondary Air Injection Check Valve to meet or exceed OEM standards for fit, form, and function. The part undergoes rigorous quality control to ensure durability and reliable operation within the specified temperature and pressure ranges. This product is backed by Dorman’s limited warranty, providing coverage against defects in materials and workmanship under normal use.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":44329554968757,"sku":"BKKY-911-170","price":252.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_911170_Fro.jpg?v=1775012038","url":"https:\/\/www.partcatalog.com\/products\/dorman-911-170-secondary-air-injection-check-valve","provider":"PartCatalog","version":"1.0","type":"link"}