{"product_id":"gates-19665-hvac-heater-hose","title":"Gates 19665 HVAC Heater Hose","description":"\u003ch2\u003eGates Molded Heater Hose 19665\u003c\/h2\u003e\u003cp\u003eGates 19665 is a factory-molded HVAC heater hose built for tight engine bays and OE-style routing. It uses EPDM construction and a 19 mm (0.75 in) inside diameter at both ends, with a 353 mm (13.9 in) centerline length for direct replacement applications.\u003c\/p\u003e\u003cp\u003eThe Gates Molded Heater Hose line focuses on formed coolant hose routing for modern compact engine compartments. This molded design helps maintain the original hose path on vehicles such as Chevrolet Express and GMC Savana vans, along with select Saab, Saturn, and Ford applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEPDM hose material for coolant, water, and air service\u003c\/li\u003e\n\u003cli\u003eFactory-molded shape for OE-style fitment\u003c\/li\u003e\n\u003cli\u003e19 mm (0.75 in) inside diameter at both ends\u003c\/li\u003e\n\u003cli\u003e353 mm (13.9 in) centerline length\u003c\/li\u003e\n\u003cli\u003eApproved for marine applications\u003c\/li\u003e\n\u003cli\u003eDirect replacement for HVAC heater hose routing\u003c\/li\u003e\n\u003cli\u003ePart number: 19665\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplication Details\u003c\/h2\u003e\u003cp\u003eThis Gates molded coolant hose is used in heater and auxiliary heater circuits where a formed hose is required to clear nearby components. It is listed for positions including Auxiliary Heater Inlet, Engine To Auxiliary Heater Pipe-2, Tee To Valve, Auxiliary Water Pump To Engine, Auxiliary Water Pump Outlet, Heater To Pipe, and Heater To Pipe-1. Fits 2017-2020 Chevrolet Express 2500 and Express 3500, plus 2003-2017 GMC Savana 1500, Savana 2500, and Savana 3500 applications in the listed heater locations. It also fits 1999-2009 Saab 9-5, 2005-2007 Chevrolet Cobalt, and 2004-2007 Saturn Ion applications where the molded hose routing matches the OE layout. Part number 19665 is also cross-referenced to Dayco 88431 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Problems It Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCracked or heat-aged heater hose\u003c\/li\u003e\n\u003cli\u003eCoolant seepage at a formed hose section\u003c\/li\u003e\n\u003cli\u003ePoor hose routing after a previous repair\u003c\/li\u003e\n\u003cli\u003eRestricted fitment in tight engine compartments\u003c\/li\u003e\n\u003cli\u003eReplacement needs for auxiliary heater hose routing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the end diameters, centerline length, and molded shape against the original hose before installation. Confirm the vehicle’s heater circuit position, since this part is listed for multiple routing locations across Chevrolet Express, GMC Savana, Saab 9-5, Chevrolet Cobalt, Saturn Ion, and select Ford applications. Inspect adjoining pipes, clamps, and coolant connections for wear before installing the new hose.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eGates manufactures this molded heater hose as an OE-style replacement built to match factory routing requirements. The EPDM construction and molded profile support consistent fitment in coolant and HVAC heater hose applications.\u003c\/p\u003e","brand":"Gates","offers":[{"title":"Default Title","offer_id":45307158495413,"sku":"BBSC-19665","price":23.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ZO_19665_Fro_feb03762-08f3-4b86-a4e6-217638f9d561.jpg?v=1775145832","url":"https:\/\/www.partcatalog.com\/products\/gates-19665-hvac-heater-hose","provider":"PartCatalog","version":"1.0","type":"link"}