{"product_id":"gates-18503-hvac-heater-hose","title":"Gates 18503 HVAC Heater Hose - Transmission Oil Cooler To Housing","description":"\u003ch2\u003eGates 18503 Molded Heater Hose Overview\u003c\/h2\u003e\u003cp\u003eThe Gates 18503 molded heater hose is an OEM-style coolant hose built for tight engine bays and factory routing. It is formed to match the original shape needed for specific Honda Accord and Acura TL applications, helping maintain proper hose alignment in compact HVAC and cooling system layouts.\u003c\/p\u003e\u003cp\u003eMade from EPDM, this Gates Molded Heater Hose line is designed for coolant, water, and air service, and it is also approved for marine applications. The small inside diameter and molded construction support a precise fit where straight hose sections are not practical.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGates part number 18503\u003c\/li\u003e\n\u003cli\u003eFactory-molded, OEM-style hose shape\u003c\/li\u003e\n\u003cli\u003eEPDM construction for cooling-system service\u003c\/li\u003e\n\u003cli\u003eSmall I.D. design for tighter engine compartments\u003c\/li\u003e\n\u003cli\u003eEnd 1 inside diameter: 13 mm (0.51 in)\u003c\/li\u003e\n\u003cli\u003eEnd 2 inside diameter: 13 mm (0.51 in)\u003c\/li\u003e\n\u003cli\u003eCenterline length: 196 mm (7.7 in)\u003c\/li\u003e\n\u003cli\u003eCompatible with coolant, water, and air applications\u003c\/li\u003e\n\u003cli\u003eApproved for marine applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eThis molded heater hose is part of the Gates Molded Heater Hose product line, which focuses on formed replacement hoses for vehicles with limited underhood space. The Gates 18503 follows the original routing profile needed for transmission oil cooler to housing connections on select Honda Accord and Acura TL models, helping preserve the intended hose path and connection geometry. This part cross-references CSF 10503 for the same application.\u003c\/p\u003e\u003cp\u003eFits 2003-2007 Honda Accord, Transmission Oil Cooler To Housing. Fits 2004-2005 Acura TL, Transmission Oil Cooler To Housing.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Hose Can Help Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCracked or hardened molded coolant hose material\u003c\/li\u003e\n\u003cli\u003eLeaks at a formed hose connection point\u003c\/li\u003e\n\u003cli\u003ePoor hose routing in a tight engine compartment\u003c\/li\u003e\n\u003cli\u003eIncorrect fitment from a universal straight hose\u003c\/li\u003e\n\u003cli\u003eDegraded hose performance in coolant, water, or air service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the hose routing and connection points against the original part before installation. Because this is a molded hose, correct orientation matters for proper fit in the transmission oil cooler to housing location. Inspect adjoining fittings and clamps for wear or corrosion before reassembly.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eGates manufactures this molded hose to OE-style dimensions and material specifications for the listed Honda Accord and Acura TL applications. The EPDM construction and factory-formed shape support consistent replacement fitment in the intended cooling-system routing.\u003c\/p\u003e","brand":"Gates","offers":[{"title":"Default Title","offer_id":45303971807413,"sku":"BBSC-18503","price":18.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ZO_18503_Top.jpg?v=1775145714","url":"https:\/\/www.partcatalog.com\/products\/gates-18503-hvac-heater-hose","provider":"PartCatalog","version":"1.0","type":"link"}