{"product_id":"acdelco-professional-18221l-molded-heater-hose-black-gm-oe-style-40-f-to-275-f","title":"ACDelco Professional 18221L Molded Heater Hose, Black | GM OE Style, -40°F to 275°F","description":"\u003ch2\u003eACDelco 18221L Molded Heater Hose — engineered for tight engine bays\u003c\/h2\u003e\n\u003cp\u003eThe 18221L hose is built to fit today’s compact engine compartments, delivering a GM OE-style molded shape that blends with original components. A protective sleeve helps preserve the profile and spacing of nearby lines, supporting a clean, secure installation even in crowded areas.\u003c\/p\u003e\n\u003ch3\u003eKey design and fit advantages\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProtective sleeve replicates GM OE design for proper fit and function\u003c\/li\u003e\n\u003cli\u003eInstalls without buckling, bending out of shape, or straining at connections\u003c\/li\u003e\n\u003cli\u003eHas the same core coolant hose features for interchangeable applications\u003c\/li\u003e\n\u003cli\u003eDiameter ranges from 1\/4\" to 1\" to accommodate multiple vehicle types\u003c\/li\u003e\n\u003cli\u003eLess than 500 part numbers cover more than 1,200 applications to maximize coverage\u003c\/li\u003e\n\u003cli\u003ePrecise dimensions listed for accurate fit in constrained spaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMaterial strength and operating range\u003c\/h3\u003e\n\u003cp\u003eMade from a proprietary EPDM rubber blend, the hose remains flexible across temperature swings, helping resist electrochemical degradation that can shorten hose life. It is rated for -40°F to 275°F (-40°C to 135°C), enabling use in coolant, water, and air pathways. Marine applications are approved, expanding where it can be applied. Important: not suitable for fuel or oil transfer.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEPDM formulation offers durability and resilience in varied climates\u003c\/li\u003e\n\u003cli\u003eSuitable for coolant circuits, heater lines, and air transfer paths\u003c\/li\u003e\n\u003cli\u003eMarine-grade approval supports additional installation scenarios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation experience and practical use\u003c\/h3\u003e\n\u003cp\u003eThe molded design is crafted to minimize installation time by reducing the risk of kinking or distortion during routing. In crowded engine bays, its precise shape helps you align hoses quickly with the original routing. This makes it a solid choice for replace-and-refresh projects on compatible GM vehicles.\u003c\/p\u003e\n\u003cp\u003eWhether performing routine maintenance, responding to aging hose symptoms, or updating to a GM OE-style part, this hose provides a reliable, replaceable option. While results vary with vehicle and operating conditions, the 18221L offers a credible balance of fit, flexibility, and coverage for many applications.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What applications does the ACDelco 18221L hose support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Compatible with coolant, water, and air systems, with marine approval and GM OE-style fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What installation features help during replacement?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A protective sleeve, buckling-resistant design, and smooth bends aid straightforward, reliable installation in tight engine bays.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ACDelco","offers":[{"title":"Default Title","offer_id":42470921011285,"sku":"B000C9DV8C","price":92.01,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/acdelco-18221l-molded-branched-heater-hose-black.jpg?v=1778156272","url":"https:\/\/plentytorque.co.uk\/products\/acdelco-professional-18221l-molded-heater-hose-black-gm-oe-style-40-f-to-275-f","provider":"PlentyTorque","version":"1.0","type":"link"}