{"product_id":"radhlbniu-ad-9-air-dryer-purge-valve-replacement-with-heater-for-bendix-5004341-800405-direct-fit-kit","title":"RADHLBNIU AD-9 Air Dryer Purge Valve Replacement with Heater for Bendix 5004341\/800405 — Direct-Fit Kit","description":"\u003cp\u003e\u003cstrong\u003eRADHLBNIU AD9 Purge Valve with heater is a direct-fit replacement for Bendix air dryer models 5004341 and 800405, restoring reliable purge and anti-freeze functionality.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement purge valve is engineered to match the AD-9 air dryer form and function so maintenance teams can quickly swap a worn or failed valve without modifying existing plumbing. It includes the valve, mounting screws and a small tube of silicone grease to help seat seals during installation. The integrated heater element helps prevent moisture freeze-ups in cold climates, while the valve body and components are sized to fit Bendix AD-9 housings.\u003c\/p\u003e\n\n\u003ch3\u003eHow straightforward is installing this RADHLBNIU purge valve?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is intended to be user-friendly for truck technicians familiar with AD-9 service. The package contains the valve, three mounting screws and silicone grease so you have the basic parts needed to refit the unit. Standard hand tools are typically all that’s required and the valve aligns to the same bolt pattern as the original Bendix parts.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIncludes 1 purge valve, 3 screws, and silicone grease for seal seating.\u003c\/li\u003e\n  \u003cli\u003eDesigned to match AD-9 mounting points for direct replacement.\u003c\/li\u003e\n  \u003cli\u003eTypical install uses common wrenches and a torque spec matching OEM guidance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the heater element prevent freezing in cold weather?\u003c\/h3\u003e\n\n\u003cp\u003eThe built-in heater reduces the chance of ice formation around the purge valve during low temperatures, improving air dryer reliability in winter. It helps maintain valve movement and purge timing but should be used with proper system diagnostics and electrical checks. Heater performance depends on correct wiring and power to the dryer heater circuit.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eHeater integrated into valve to limit freeze-related sticking.\u003c\/li\u003e\n  \u003cli\u003eRequires connection to the dryer heater circuit for full benefit.\u003c\/li\u003e\n  \u003cli\u003eWorks best with regular dryer maintenance and correct electrical supply.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat compatibility and part-replacement details should I check before buying?\u003c\/h3\u003e\n\n\u003cp\u003eThis RADHLBNIU unit is built to replace Bendix parts 5004341 and 800405 used with AD-9 systems. Confirm your air dryer model and existing valve part number to ensure fit. If unsure, remove the old valve and compare mounting pattern, electrical connector and port locations before ordering.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eListed as compatible with Bendix 5004341 and 800405 AD-9 valves.\u003c\/li\u003e\n  \u003cli\u003eVerify mounting holes, port layout and electrical connector match your dryer.\u003c\/li\u003e\n  \u003cli\u003eContact the seller or a technician if fitment questions remain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the box and are spare parts needed?\u003c\/h3\u003e\n\n\u003cp\u003eThe kit arrives with the new purge valve, three mounting screws and a small tube of silicone grease to help create a proper seal during installation. Most installs won’t require extra hardware, but inspect your existing gaskets and fittings; replace any corroded screws or damaged fittings to avoid leaks. Keep a basic hand-tool set and the vehicle manual for torque values.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePackage: 1 AD-9 purge valve, 3 screws, 1 silicone grease tube.\u003c\/li\u003e\n  \u003cli\u003eInspect and replace old gaskets or corroded hardware as needed.\u003c\/li\u003e\n  \u003cli\u003eFollow OEM torque and wiring recommendations for safety and longevity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: fleet mechanics, independent heavy-vehicle technicians and maintenance managers who service Bendix AD-9 air dryers and need a dependable, plug-and-play purge valve replacement with heater functionality. If you maintain trucks that operate in cold climates or have a failed purge valve causing improper drying or sticky operation, this RADHLBNIU replacement provides a cost-effective option to restore purge performance when matched to the listed Bendix part numbers.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this valve a direct replacement for Bendix 5004341 and 800405?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This RADHLBNIU purge valve is made to replace Bendix part numbers 5004341 and 800405 in AD-9 dryers when mounting and connectors match.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include installation hardware?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It includes three mounting screws and a tube of silicone grease; additional gaskets or corroded fasteners should be replaced as needed.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"RADHLBNIU","offers":[{"title":"Default Title","offer_id":48084564181150,"sku":"B0C7VFGQ3S","price":33.47,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/radhlbniu-ad9-purge-valve-front.jpg?v=1785859615","url":"https:\/\/northtrailauto.ca\/products\/radhlbniu-ad-9-air-dryer-purge-valve-replacement-with-heater-for-bendix-5004341-800405-direct-fit-kit","provider":"North Trail Auto","version":"1.0","type":"link"}