{"product_id":"evrbul-heater-core-hose-connectors-2pc-3-4-tube-to-5-8-hose-stainless-steel-with-epdm-seal-clamps-included","title":"EVRBUL Heater Core Hose Connectors 2PC 3\/4\" Tube to 5\/8\" Hose — Stainless Steel with EPDM Seal \u0026 Clamps Included","description":"\u003cb\u003eHigh-strength EVRBUL heater core hose connectors deliver a sealed, corrosion-resistant inlet\/outlet repair for 3\/4\" tube to 5\/8\" coolant hose connections.\u003c\/b\u003e\n\nThese two-piece connectors replace worn or leaking heater core fittings with a durable 304 stainless steel assembly and an EPDM internal seal ring. The kit includes two connectors, stainless clamps, a small tube of grease, and two removal tools sized for 5\/8\" and 3\/4\" fittings so you can install or remove the fittings without cutting hoses. Designed for many Chevrolet, GMC, Cadillac and related models, this set restores a secure coolant path and reduces the need for repeated repairs.\n\n\u003ch3\u003eHow do these connectors stop leaks at the heater core?\u003c\/h3\u003e\n\u003cp\u003eEach connector uses a corrosion-resistant EPDM rubber sealing ring inside the stainless body to form a tight interface with the hose. A sprung locking clip secures the connector to the heater core tube, preventing axial movement and reducing the chance of coolant seepage under vibration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEPDM inner seal resists coolant and heat for reliable compression.\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel body prevents rust and maintains shape.\u003c\/li\u003e\n  \u003cli\u003eSpring clip locks to the heater core tube to stop pull-off leaks.\u003c\/li\u003e\n  \u003cli\u003eIncluded hose clamps add an extra mechanical seal on the hose end.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat is included and how does it simplify installation?\u003c\/h3\u003e\n\u003cp\u003eThe package contains two complete connector assemblies plus the small tools and accessories needed to fit them without special shop equipment. Included dismantling tools match the connector sizes so you can disengage the spring clip cleanly; clamps and grease make positioning and sealing straightforward.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e2 × stainless steel connectors with EPDM seals for both heater lines.\u003c\/li\u003e\n  \u003cli\u003e2 × disassembly tools (one for 5\/8\" hose, one for 3\/4\" tube) for removal\/installation.\u003c\/li\u003e\n  \u003cli\u003e2 × stainless steel hose clamps for added hose retention.\u003c\/li\u003e\n  \u003cli\u003e1 × grease packet to ease assembly and preserve the seal ring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich vehicles and hose sizes are compatible with this kit?\u003c\/h3\u003e\n\u003cp\u003eThese fittings are made for a 3\/4\" heater tube connection to a 5\/8\" coolant hose and suit many GM platform vehicles that used similar heater core connections. They fit common model years of Silverado, Sierra, Tahoe, Suburban, Yukon, Avalanche and other related Chevrolet, GMC, Cadillac, Lincoln and Pontiac vehicles, but you should confirm dimensions before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTube side: 3\/4\" (heater core\/stub tube).\u003c\/li\u003e\n  \u003cli\u003eHose side: 5\/8\" coolant hose.\u003c\/li\u003e\n  \u003cli\u003eOE replacement cross numbers covered: 800-409, 15032062 and related OEM references.\u003c\/li\u003e\n  \u003cli\u003eFits many 1999–2014 GM models—verify your vehicle’s heater line sizes first.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable are these connectors under heat and vibration?\u003c\/h3\u003e\n\u003cp\u003eThe body is formed from 304 stainless steel for superior corrosion resistance compared with plated or cheap alloys. The EPDM seal tolerates coolant and elevated under-hood temperatures while the spring clip and clamps resist loosening from engine vibration, giving a long service life when installed correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e304 stainless resists rust in road-salt and humid conditions.\u003c\/li\u003e\n  \u003cli\u003eEPDM seal maintains flexibility across temperature cycles.\u003c\/li\u003e\n  \u003cli\u003eMechanical spring clip prevents axial movement under vibration.\u003c\/li\u003e\n  \u003cli\u003eStainless clamps ensure secure hose retention over time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\nWho is this for?\n\nThis kit is ideal for DIY mechanics, fleet maintenance staff, and professional technicians needing a robust heater core connection repair for GM-platform vehicles that use a 3\/4\" tube to 5\/8\" hose interface. If you want a corrosion-resistant replacement that includes installation tools and clamps, the EVRBUL two-piece connector set offers a ready-to-fit solution that reduces downtime and recurring leaks. Always confirm tube and hose diameters on your vehicle before purchase to ensure a correct fit.\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will these connectors fit my vehicle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They fit 3\/4\" heater tube to 5\/8\" hose setups on many Chevrolet, GMC, Cadillac models; confirm your vehicle’s tube and hose diameters before buying.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need special tools to install them?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No; the kit includes two disassembly tools sized for 5\/8\" and 3\/4\" fittings plus clamps and grease for installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"EVRBUL","offers":[{"title":"Default Title","offer_id":48086245114014,"sku":"B0F5Q1Q843","price":48.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/evrbul-front-packaging-view_ff24c213-179a-43a0-8e6d-c5c427b8b99a.jpg?v=1785891763","url":"https:\/\/northtrailauto.ca\/products\/evrbul-heater-core-hose-connectors-2pc-3-4-tube-to-5-8-hose-stainless-steel-with-epdm-seal-clamps-included","provider":"North Trail Auto","version":"1.0","type":"link"}