{"product_id":"dorman-626-557-hvac-heater-hose-assembly","title":"Dorman 626-557 HVAC Heater Hose Assembly - Inlet","description":"\u003ch2\u003eDurable HVAC Heater Hose Assembly for Select GM Trucks and SUVs\u003c\/h2\u003e\u003cp\u003eThe Dorman 626-557 HVAC heater hose assembly is designed to provide reliable heating system performance for a range of Cadillac, Chevrolet, GMC, and Hummer vehicles. Engineered with quality rubber material, this heater hose assembly ensures consistent coolant flow and heat transfer within your vehicle's HVAC system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from durable rubber with a natural, no-finish color\u003c\/li\u003e\n\u003cli\u003eStraight hose shape with a centerline length of 34 inches\u003c\/li\u003e\n\u003cli\u003eFeatures two branches with varying inside diameters: 0.99, 1.33, and 0.9 inches\u003c\/li\u003e\n\u003cli\u003eEnd 1 attaches via hose connection; End 2 uses a quick disconnect fitting\u003c\/li\u003e\n\u003cli\u003eDesigned for a maximum working pressure of 100 psi\u003c\/li\u003e\n\u003cli\u003eDoes not include clamps or protective sleeves\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple GM models including Chevrolet Silverado, GMC Sierra, Cadillac Escalade, and Hummer H2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman 626-557 heater hose assembly is a regular grade HVAC component made from high-quality rubber, ensuring flexibility and resistance to heat and pressure within the vehicle's heating system. Its straight hose design and multiple branch connections allow for efficient coolant routing in complex HVAC configurations. The assembly does not contain springs or protective sleeves, and it does not require a heat shield, simplifying installation and maintenance. The quick disconnect fitting on End 2 facilitates easier removal and replacement without compromising the seal or system integrity.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis heater hose assembly is compatible with a wide range of General Motors trucks and SUVs, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCadillac Escalade, Escalade ESV, and Escalade EXT\u003c\/li\u003e\n\u003cli\u003eChevrolet Avalanche 1500 and 2500, Silverado 1500, 2500, and 3500 series (including Classic and HD variants)\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 1500, 2500, and 3500 series (including Classic and HD variants)\u003c\/li\u003e\n\u003cli\u003eGMC Yukon and Yukon XL 1500 and 2500\u003c\/li\u003e\n\u003cli\u003eHummer H2\u003c\/li\u003e\n\u003cli\u003eChevrolet Suburban 1500 and 2500, Tahoe\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Heater Hose Assembly\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLeaking or cracked heater hoses causing coolant loss\u003c\/li\u003e\n\u003cli\u003eReduced heating efficiency due to damaged or deteriorated hoses\u003c\/li\u003e\n\u003cli\u003eCoolant flow restrictions from collapsed or kinked hoses\u003c\/li\u003e\n\u003cli\u003eDifficulty in hose removal or replacement due to lack of quick disconnect fittings\u003c\/li\u003e\n\u003cli\u003eWear from exposure to heat and pressure in the HVAC system\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the vehicle is cool and the cooling system is depressurized before installation\u003c\/li\u003e\n\u003cli\u003eVerify hose diameters and branch locations match your vehicle’s HVAC layout\u003c\/li\u003e\n\u003cli\u003eUse appropriate clamps (not included) to secure hose ends firmly\u003c\/li\u003e\n\u003cli\u003eInspect surrounding components for wear or damage during replacement\u003c\/li\u003e\n\u003cli\u003eTest the heating system after installation to confirm proper coolant flow and leak-free connections\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures this heater hose assembly to meet or exceed OEM specifications for durability and performance. The part is constructed from quality rubber material designed to withstand typical HVAC system pressures up to 100 psi. While clamps and heat shields are not included or required, the assembly is engineered for reliable service life in compatible Cadillac, Chevrolet, GMC, and Hummer models. Warranty coverage details should be confirmed with the point of purchase or manufacturer.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":44040388804789,"sku":"BKKY-626-557","price":51.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_626557_Ang.jpg?v=1775009832","url":"https:\/\/www.partcatalog.com\/products\/dorman-626-557-hvac-heater-hose-assembly","provider":"PartCatalog","version":"1.0","type":"link"}