{"product_id":"dayco-77300gl-radiator-coolant-hose","title":"Dayco 77300GL Radiator Coolant Hose","description":"\u003ch2\u003eHeavy-Duty Straight Radiator Hose\u003c\/h2\u003e\u003cp\u003eDayco 77300GL is a heavy-duty straight radiator coolant hose for commercial truck cooling systems. It is listed across a wide range of lower, upper, radiator, engine, pipe, and oil cooler applications, including fitments for Freightliner, Peterbilt, and Kenworth models.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eStraight hose design for direct routing in cooling system service.\u003c\/li\u003e\n\u003cli\u003eHeavy-duty construction line for commercial vehicle applications.\u003c\/li\u003e\n\u003cli\u003eFits multiple coolant transfer points, including radiator, engine, pipe, and oil cooler connections.\u003c\/li\u003e\n\u003cli\u003eApplication-specific fitment for many Class 8 and medium-duty trucks.\u003c\/li\u003e\n\u003cli\u003eCross-references Monroe Shocks \u0026amp; Struts (e.g., 172286, 182286) for the same application.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eDayco 77300GL is a straight radiator coolant hose built for heavy-duty truck cooling systems where a direct hose path is required. The fitment data covers a broad range of commercial vehicles, including Freightliner FLD120, Peterbilt 379, and Kenworth T800 applications, with notes that vary by connection point such as pipe to radiator, engine to pipe, and oil cooler routing. This makes 77300GL a practical replacement when servicing cooling circuits on trucks that use straight hose routing rather than formed bends.\u003c\/p\u003e\u003cp\u003eThe Dayco Straight Radiator Hose - H.D. line is aimed at demanding cooling-system service on commercial vehicles. If you are replacing a radiator coolant hose on a Freightliner FLD120, Peterbilt 379, or Kenworth T800, confirm the exact connection path and any fitment notes such as cut-to-fit, 3 in. I.D., or oil cooler usage before ordering. Part number 77300GL appears in multiple heavy-duty truck applications, which helps simplify identification during maintenance and repair.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Solve\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCoolant leaks at straight hose connections.\u003c\/li\u003e\n\u003cli\u003eCracked or aged radiator hose material.\u003c\/li\u003e\n\u003cli\u003eRestricted coolant flow from damaged hose routing.\u003c\/li\u003e\n\u003cli\u003eService replacement for pipe-to-radiator and engine-to-pipe connections.\u003c\/li\u003e\n\u003cli\u003eCooling system repairs involving oil cooler or aftercooler routing notes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the exact year, make, model, and connection point before installation. Several listings include special notes such as cut to fit, 3 in. I.D., w\/aftercooler, w\/o P.T.O., or w\/o low flow cooling, so match the hose to the vehicle configuration before service. Inspect adjoining pipes, clamps, and coolant passages for wear or contamination before installing the new hose. Part number 77300GL should be matched to the specific routing shown in the fitment table.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDayco is a recognized supplier of cooling-system components for heavy-duty vehicle service. The 77300GL part number is cataloged for a broad range of commercial truck applications, supporting accurate replacement selection when the original hose routing is known.\u003c\/p\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":53505744306357,"sku":"BCWL-77300GL","price":96.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DY_77300GL_Fro.jpg?v=1791695034","url":"https:\/\/www.partcatalog.com\/products\/dayco-77300gl-radiator-coolant-hose","provider":"PartCatalog","version":"1.0","type":"link"}