{"product_id":"motorad-448-180-engine-coolant-thermostat-6-6l-duramax-diesel","title":"Motorad 448-180 Engine Coolant Thermostat - 6.6L Duramax Diesel","description":"\u003cp\u003eThe Motorad 448-180 is an Engine Coolant Thermostat engineered to OEM specifications for 6.6L V8 Duramax diesel applications, including LB7, LLY, LMM, LGH, and LML engines found in Chevrolet Silverado, GMC Sierra, Express, Savana, and related trucks from 2001-2015. Built with a copper and steel construction and a wax-fill element, it responds accurately to coolant temperature changes to help maintain proper engine operating range. The design includes an air relief valve and an O-ring seal to support proper installation and sealing where applicable. Rated to open at 180°F (82°C), this thermostat is manufactured by an OE supplier using OEM-grade materials and processes, giving fleet and DIY installers a dependable, standard-fit replacement for demanding diesel cooling systems. Compact and ready to install, it's a straightforward way to restore consistent thermal regulation on heavy-duty diesel pickups and vans.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n  \u003cli\u003eCopper and steel build resists heat stress for dependable long-term cooling performance\u003c\/li\u003e\n  \u003cli\u003eWax-fill element reacts quickly to coolant temperature shifts for stable engine operation\u003c\/li\u003e\n  \u003cli\u003e180°F opening rating matches OEM specs for accurate thermostat function\u003c\/li\u003e\n  \u003cli\u003eIncludes air relief valve to help purge trapped air from the cooling system\u003c\/li\u003e\n  \u003cli\u003eO-ring seal included to support a proper, leak-resistant installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Summary\u003c\/h3\u003e2001-2006 Chevrolet Silverado 3500 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2001-2006 GMC Sierra 3500 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2001-2024 Chevrolet Silverado 2500 HD 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2001-2024 GMC Sierra 2500 HD 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2003-2009 Chevrolet C4500 Kodiak 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2003-2009 Chevrolet C5500 Kodiak 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2003-2009 GMC C4500 Topkick 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2003-2009 GMC C5500 Topkick 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2005 Workhorse Custom Chassis P42 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2005-2011 Workhorse LF72 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2006 Hummer H1 6.6L -CC 400CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2006, 2008-2009 Chevrolet Express 3500 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2006-2016 Chevrolet Express 2500 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2006-2016 GMC Savana 2500 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2006-2016 GMC Savana 3500 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2007 Chevrolet Silverado 2500 HD Classic 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2007 Chevrolet Silverado 3500 Classic 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2007 GMC Sierra 2500 HD Classic 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2007 GMC Sierra 3500 Classic 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2007 Workhorse Custom Chassis W72 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2007, 2010-2016 Chevrolet Express 3500 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2007-2024 Chevrolet Silverado 3500 HD 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2007-2024 GMC Sierra 3500 HD 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2009-2016 Chevrolet Express 4500 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2009-2016 GMC Savana 4500 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2019-2020 Chevrolet Silverado 4500 HD 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2019-2020 Chevrolet Silverado 5500 HD 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2019-2020 Chevrolet Silverado 6500 HD 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e2019-2020 International CV515 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL\u003cbr\u003e\n\u003cdiv class=\"-partnumber\"\u003ePart Numbers: 448-180\u003c\/div\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Motorad\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 448-180\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Engine Coolant Thermostat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 055644448800\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGTIN:\u003c\/strong\u003e 00055644448800\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 2.2500 x 2.2500 x 2.2500 IN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 2.2500 x 2.2500 x 2.2500 IN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight:\u003c\/strong\u003e 0.1200 PG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 1 EA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Copper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGasket or Seal Pre-Installed:\u003c\/strong\u003e Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSealing Flange Outside Diameter:\u003c\/strong\u003e 2.2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSealing Flange Outside Diameter:\u003c\/strong\u003e 55.88\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight Between Flanges:\u003c\/strong\u003e 1.02\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight Between Flanges:\u003c\/strong\u003e 25.91\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMAP Controlled:\u003c\/strong\u003e No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e OEM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInterchange\u003c\/h3\u003e\u003cul\u003e\n  \u003cli\u003eGeneral Motors: 12680457\u003c\/li\u003e\n  \u003cli\u003eGeneral Motors: 97241130\u003c\/li\u003e\n  \u003cli\u003eOmnicraft: QRT48\u003c\/li\u003e\n  \u003cli\u003eParts Master: 54880\u003c\/li\u003e\n  \u003cli\u003eMotorad: 448-180\u003c\/li\u003e\n  \u003cli\u003eFVP Caps \u0026amp; Thermostats: 448-180\u003c\/li\u003e\n  \u003cli\u003eMurray Temperature Control: 44880\u003c\/li\u003e\n  \u003cli\u003ePronto: 448-180\u003c\/li\u003e\n  \u003cli\u003eFederated: 448-180\u003c\/li\u003e\n  \u003cli\u003eCanadian Tire: 448-180\u003c\/li\u003e\n  \u003cli\u003eACDelco: 12T100D\u003c\/li\u003e\n  \u003cli\u003eACDelco: 97241130\u003c\/li\u003e\n  \u003cli\u003eACDelco: 131-131\u003c\/li\u003e\n  \u003cli\u003eWorldparts: 9448180\u003c\/li\u003e\n  \u003cli\u003eAutopart International: 1601-290244\u003c\/li\u003e\n  \u003cli\u003eGates: 33947\u003c\/li\u003e\n  \u003cli\u003eStant: 14738\u003c\/li\u003e\n  \u003cli\u003ePep Boys: 448-180\u003c\/li\u003e\n  \u003cli\u003eBalkamp: 390-180\u003c\/li\u003e\n  \u003cli\u003eOMNIPARTS: 448-180\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty Duration:\u003c\/strong\u003e 12 Months\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Motorad","offers":[{"title":"Default Title","offer_id":47827531006101,"sku":"448-180","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0496\/4266\/8181\/files\/448-180_Angle.jpg?v=1787708471","url":"https:\/\/mizumoauto.com\/products\/motorad-448-180-engine-coolant-thermostat-6-6l-duramax-diesel","provider":"Mizumo Auto","version":"1.0","type":"link"}