{"product_id":"dorman-coolant-connector-3-4in-tube-x-5-8in-hose-stainless-steel-inlet-outlet-direct-fit-corrosion-resistant","title":"Dorman Coolant Connector 3\/4in Tube x 5\/8in Hose — Stainless Steel Inlet\/Outlet, Direct-Fit Corrosion-Resistant","description":"\u003cp\u003e\u003cstrong\u003eDorman 800-409HP is a stainless-steel inlet\/outlet coolant connector that replaces fatigued plastic heater hose fittings for improved durability and a direct fit.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eMany OEM coolant and HVAC heater hose connectors crack or deform after repeated heat cycles and vibration. The Dorman 800-409HP OE FIX replacement swaps the original plastic piece for corrosion-resistant stainless steel, retaining original dimensions so you can replace the failed part without modifying surrounding hoses or brackets.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this connector resist heat and vibration better than the original?\u003c\/h3\u003e\n\u003cp\u003eThe 800-409HP uses stainless steel construction instead of the brittle plastic commonly used on original connectors, reducing the chance of cracks from thermal cycling and engine movement. Dorman also redesigned key stress points to spread loads more evenly and reduce fatigue failure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCorrosion-resistant stainless steel body for longer life\u003c\/li\u003e\n  \u003cli\u003eReinforced geometry at the tube and hose interfaces\u003c\/li\u003e\n  \u003cli\u003eTested for heat, pressure and vibration endurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it fit my vehicle and install like the original?\u003c\/h3\u003e\n\u003cp\u003eThis part is manufactured to match the original equipment's form and dimensions so it installs using the existing hoses and clamps. Always verify fitment using your vehicle's make, model and trim information—Dorman provides a garage-fit tool and Amazon’s Confirmed Fit notes for compatibility details.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-fit replacement with original-sized connections (3\/4 in tube x 5\/8 in hose)\u003c\/li\u003e\n  \u003cli\u003eNo need to modify hoses or mounting points for typical installations\u003c\/li\u003e\n  \u003cli\u003eFitment confirmation available via garage tool and product fit notes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat reliability checks has Dorman performed on this replacement?\u003c\/h3\u003e\n\u003cp\u003eDorman subjects OE FIX parts to a range of quality tests to confirm long-term performance. The 800-409HP has undergone try-on validation plus corrosion, heat and pressure testing to ensure it meets expectations in real-world engine bays.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFitment trials to confirm correct dimensions and alignment\u003c\/li\u003e\n  \u003cli\u003eCorrosion resistance testing for coolant-system environments\u003c\/li\u003e\n  \u003cli\u003eHeat and pressure tests to simulate operating conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow simple is the install for a DIYer working on the cooling system?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone comfortable with basic hose replacement: drain the cooling circuit as needed, remove the old connector, and swap in the Dorman unit using the original clamps or new clamps if preferred. Because the 800-409HP matches OE sizing, you typically won’t need specialty tools or adapters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMatches original form for plug-and-play replacement\u003c\/li\u003e\n  \u003cli\u003eUses standard hose clamps and common hand tools\u003c\/li\u003e\n  \u003cli\u003eRecommended to inspect hoses and clamps while replacing the connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Dorman 800-409HP coolant connector is intended for vehicle owners, independent mechanics and fleet technicians who need a rugged, long-lasting replacement for a failed plastic heater hose or coolant connector. It’s especially useful when preserving OEM routing and fitment matters and when you want a corrosion-resistant upgrade that reduces the chance of repeat failures.\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 are the connection sizes of the Dorman 800-409HP?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It connects to a 3\/4-inch tube and a 5\/8-inch hose, matching original equipment dimensions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need to modify hoses to install this part?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No—this OE FIX unit is made to the original form and typically installs using the existing hoses and clamps.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":48087544299678,"sku":"B07RK3JYZN","price":35.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/dorman-front-profile-coolant-connector.jpg?v=1785925581","url":"https:\/\/northtrailauto.ca\/products\/dorman-coolant-connector-3-4in-tube-x-5-8in-hose-stainless-steel-inlet-outlet-direct-fit-corrosion-resistant","provider":"North Trail Auto","version":"1.0","type":"link"}