{"product_id":"dorman-626-657-hvac-heater-hose-assembly","title":"Dorman 626-657 HVAC Heater Hose Assembly - Inlet","description":"\u003ch2\u003eDurable HVAC Heater Hose Assembly for Ram ProMaster\u003c\/h2\u003e\u003cp\u003eThe Dorman 626-657 HVAC heater hose assembly is designed specifically for Ram ProMaster 1500, 2500, and 3500 models. Constructed from EPDM material, this molded hose assembly ensures reliable performance in your vehicle's heating and cooling system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMade from durable EPDM rubber for heat and chemical resistance\u003c\/li\u003e\n\u003cli\u003eIncludes clamps for secure installation\u003c\/li\u003e\n\u003cli\u003eMolded assembly with three hose ends featuring quick disconnects\u003c\/li\u003e\n\u003cli\u003eCompatible with Ram ProMaster 1500, 2500, and 3500\u003c\/li\u003e\n\u003cli\u003eMaximum working pressure of 100 PSI\u003c\/li\u003e\n\u003cli\u003eCenterline length of 12 inches for precise fitment\u003c\/li\u003e\n\u003cli\u003eBlack color for standard OEM appearance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis Dorman HVAC heater hose assembly (part number 626-657) features a molded design with three hose ends. End 1 has an inside diameter of 1.366 inches and attaches via hose connection, while ends 2 and 3 have 1.94-inch inside diameters with quick disconnect fittings. The hose ends measure 1.67 inches (end 1) and 2.18 inches (ends 2 and 3) in outside diameter. The assembly is constructed from EPDM, a material known for its resistance to heat, ozone, and coolant chemicals, making it suitable for HVAC applications in Ram ProMaster vans. The hose assembly does not include a protective sleeve or coolant hose heat shield and is rated for regular grade use with a maximum working pressure of 100 PSI.\u003c\/p\u003e\u003ch2\u003eApplications and Common Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement of worn or cracked heater hoses in Ram ProMaster 1500, 2500, and 3500\u003c\/li\u003e\n\u003cli\u003eResolving coolant leaks affecting HVAC heater core performance\u003c\/li\u003e\n\u003cli\u003eFixing poor heater output due to damaged or clogged heater hoses\u003c\/li\u003e\n\u003cli\u003eAddressing hose failures caused by heat and pressure exposure\u003c\/li\u003e\n\u003cli\u003eUpgrading OEM hoses with a reliable molded assembly for consistent fit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman 626-657 heater hose assembly, ensure the vehicle is cool and the cooling system is depressurized. Use the included clamps to secure hose ends properly, especially at quick disconnect fittings on ends 2 and 3. Verify hose routing matches OEM specifications to avoid kinks or interference. Inspect surrounding components for wear or damage during installation. This assembly is designed for direct replacement on Ram ProMaster 1500, 2500, and 3500 models, simplifying the installation process.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 626-657 heater hose assembly undergoes rigorous quality control to ensure durability and performance in HVAC systems. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Consult product documentation or your parts provider for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":44040831926453,"sku":"BKKY-626-657","price":138.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_626657_Sid.jpg?v=1775009858","url":"https:\/\/www.partcatalog.com\/products\/dorman-626-657-hvac-heater-hose-assembly","provider":"PartCatalog","version":"1.0","type":"link"}