{"product_id":"gates-12359-hvac-heater-hose-tee-1-to-heater","title":"Gates 12359 HVAC Heater Hose - Tee-1 To Heater","description":"\u003ch2\u003eGates Molded Heater Hose 12359\u003c\/h2\u003e\u003cp\u003eGates 12359 is a molded heater hose built for tight engine bays where a factory-shaped coolant hose is needed. This EPDM hose is sized with 16 mm (0.62 in) inside diameters at both ends and an 8.9 in centerline length for a precise routing path.\u003c\/p\u003e\u003cp\u003eCompatible with 2014-2016 Toyota Sienna, Tee-1 To Heater, this molded heater hose supports coolant, water, and air service. It is also approved for marine applications, making it a practical OE-style replacement for the Toyota Sienna heater hose route.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: Gates Molded Heater Hose\u003c\/li\u003e\n\u003cli\u003ePart number: 12359\u003c\/li\u003e\n\u003cli\u003eFactory-molded, OEM-style shape for compact engine compartments\u003c\/li\u003e\n\u003cli\u003eEPDM construction for heater and coolant service\u003c\/li\u003e\n\u003cli\u003e16 mm (0.62 in) inside diameter at both ends\u003c\/li\u003e\n\u003cli\u003e8.9 in (226 mm) centerline length\u003c\/li\u003e\n\u003cli\u003eApproved for coolant, water, air, and marine applications\u003c\/li\u003e\n\u003cli\u003eCross-reference: OSC 13359\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eGates Molded Heater Hose 12359 is formed to follow the original hose path in smaller, tighter-fitting engine compartments. The molded design helps maintain routing and clearance where a straight hose would not match the OE layout. For 2014-2016 Toyota Sienna models at the Tee-1 to Heater position, this hose provides the correct shape and dimensions for a direct replacement.\u003c\/p\u003e\u003cp\u003eThe Gates molded heater hose line focuses on OE-style fitment and consistent routing in HVAC and cooling-system applications. If you are replacing a worn or damaged Toyota Sienna heater hose, part number 12359 offers the molded profile and EPDM material needed for this application.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Part Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCracked or split heater hose sections\u003c\/li\u003e\n\u003cli\u003eCoolant seepage at a molded hose bend\u003c\/li\u003e\n\u003cli\u003eCollapsed hose routing in a tight engine compartment\u003c\/li\u003e\n\u003cli\u003eIncorrect hose shape after a previous repair\u003c\/li\u003e\n\u003cli\u003eLoss of heater circuit flow from a damaged hose\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the hose routing, end diameters, and centerline length before installation. Match the molded shape to the original path on the vehicle and inspect adjoining clamps, tees, and fittings for wear before reassembly. Confirm fitment for 2014-2016 Toyota Sienna, Tee-1 To Heater, before removing the old hose.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eGates is a recognized supplier of molded coolant and heater hose products for automotive service applications. Part number 12359 is built to OE-style dimensions for the listed Toyota Sienna fitment and is approved for coolant, water, air, and marine use.\u003c\/p\u003e","brand":"Gates","offers":[{"title":"Default Title","offer_id":52412214575285,"sku":"BBSC-12359","price":28.35,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ZO_12359_Top.jpg?v=1777784940","url":"https:\/\/www.partcatalog.com\/products\/gates-12359-hvac-heater-hose-tee-1-to-heater","provider":"PartCatalog","version":"1.0","type":"link"}