{"product_id":"motorad-379-187-thermostat-housing-assembly-w-seal-187-f","title":"Motorad 379-187 Thermostat Housing Assembly w\/ Seal, 187°F","description":"\u003cp\u003eThe Motorad 379-187 delivers a complete engine coolant thermostat housing assembly built to OEM specifications, combining the housing, thermostat, and seal in one direct-fit unit. Constructed from aluminum, copper, and stainless steel, this assembly is engineered for reliable long-term service in demanding cooling systems. The included thermostat opens at 187°F to help maintain consistent engine temperature, while the built-in jiggle pin check valve and bleeder hole assist with proper air release during coolant system fill-ups. An O-ring seal is included, so there's no need to source a separate gasket for installation. Sized with a 4.37\" x 2.75\" flange and 1.5\" outlet port, this housing fits a wide range of GM-platform V8 engines from 1997-2003, including popular Silverado, Escalade, Suburban, Express, Camaro, and Corvette applications. For shops and DIYers replacing a cracked, leaking, or corroded housing, this all-in-one assembly simplifies the job with fewer parts to source separately.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n  \u003cli\u003eComplete assembly with housing, 187°F thermostat, and O-ring seal saves a separate parts search\u003c\/li\u003e\n  \u003cli\u003eJiggle pin check valve helps release trapped air for proper coolant system bleeding\u003c\/li\u003e\n  \u003cli\u003eAluminum, copper, and stainless steel construction built to OEM specifications for reliable service\u003c\/li\u003e\n  \u003cli\u003eBleeder hole design supports easier air purge during coolant fill and system service\u003c\/li\u003e\n  \u003cli\u003eThree mounting holes and OEM-style flange dimensions support straightforward, direct-fit installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Summary\u003c\/h3\u003e1997-2003 Chevrolet Corvette 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e1998-2002 Chevrolet Camaro 3.8L 3800CC 231CID V6 OHV 12 Valve Naturally Aspirated GAS\u003cbr\u003e1998-2002 Pontiac Firebird 3.8L 3800CC 231CID V6 OHV 12 Valve Naturally Aspirated GAS\u003cbr\u003e1999-2000 Chevrolet Silverado 2500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e1999-2000 GMC Sierra 2500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e1999-2001 Chevrolet Silverado 1500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e1999-2001 GMC Sierra 1500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e1999-2001, 2003 GMC Sierra 2500 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e1999-2002 Chevrolet Silverado 1500 4.8L -CC 294CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e1999-2003 Chevrolet Silverado 2500 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e1999-2003 GMC Sierra 1500 4.8L -CC 294CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2000-2001, 2003 Chevrolet Tahoe 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2000-2001, 2003 GMC Yukon 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2000-2002 Chevrolet Suburban 1500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2000-2003 Chevrolet Suburban 2500 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2000-2003 Chevrolet Tahoe 4.8L -CC 294CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2000-2003 GMC Yukon 4.8L -CC 294CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2000-2003 GMC Yukon XL 1500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2000-2003 GMC Yukon XL 2500 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2001 Chevrolet Silverado 2500 HD 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2001 GMC Sierra 2500 HD 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2001-2002 Chevrolet Sonora 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2001-2003 Chevrolet Silverado 1500 HD 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2001-2003 Chevrolet Silverado 3500 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2001-2003 GMC Sierra 1500 4.3L -CC 262CID V6 OHV 12 Valve Naturally Aspirated GAS\u003cbr\u003e2001-2003 GMC Sierra 1500 HD 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2001-2003 GMC Sierra 3500 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2002 Chevrolet Silverado 1500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated FLEX\u003cbr\u003e2002 Chevrolet Silverado 2500 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated BI-FUEL\u003cbr\u003e2002 Chevrolet Tahoe 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated FLEX\u003cbr\u003e2002 GMC Sierra 2500 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated CNG\u003cbr\u003e2002-2003 Cadillac Escalade 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2002-2003 Cadillac Escalade 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2002-2003 Cadillac Escalade EXT 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2002-2003 Chevrolet Avalanche 1500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2002-2003 Chevrolet Silverado 2500 HD 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated CNG\u003cbr\u003e2002-2003 Chevrolet Suburban 1500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated FLEX\u003cbr\u003e2002-2003 GMC Sierra 1500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated FLEX\u003cbr\u003e2002-2003 GMC Sierra 2500 HD 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated CNG\u003cbr\u003e2002-2003 GMC Yukon 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated FLEX\u003cbr\u003e2002-2003 GMC Yukon XL 1500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated FLEX\u003cbr\u003e2003 Cadillac Escalade ESV 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 Chevrolet Express 1500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 Chevrolet Express 2500 4.8L -CC 294CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 Chevrolet Express 2500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 Chevrolet Express 2500 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated CNG\u003cbr\u003e2003 Chevrolet Express 3500 4.8L -CC 294CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 Chevrolet Express 3500 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated CNG\u003cbr\u003e2003 Chevrolet SSR 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 Chevrolet Silverado 1500 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 Chevrolet Sonora 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 Chevrolet W3500 Tiltmaster 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 Chevrolet W4500 Tiltmaster 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 GMC Envoy XL 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 GMC Savana 1500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 GMC Savana 2500 4.8L -CC 294CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 GMC Savana 2500 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 GMC Savana 2500 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated CNG\u003cbr\u003e2003 GMC Savana 3500 4.8L -CC 294CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 GMC Savana 3500 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated CNG\u003cbr\u003e2003 GMC W3500 Forward 4.8L -CC 290CID L4 U\/K U\/K Valve Turbocharged DIESEL\u003cbr\u003e2003 GMC W4500 Forward 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 Hummer H2 6.0L 5967CC 364CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003 Isuzu Ascender 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e2003-2006 Chevrolet Cheyenne 5.3L 5328CC 325CID V8 OHV 16 Valve Naturally Aspirated GAS\u003cbr\u003e\n\u003cdiv class=\"-partnumber\"\u003ePart Numbers: 379-187\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 379-187\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Engine Coolant Thermostat Housing Assembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 055644379876\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGTIN:\u003c\/strong\u003e 00055644379876\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 13.2 x 12.2 x 6.2 IN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight:\u003c\/strong\u003e 4.92 LB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e EA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Motorad","offers":[{"title":"Default Title","offer_id":47827563479189,"sku":"379-187","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0496\/4266\/8181\/files\/379-187_Angle.jpg?v=1787708605","url":"https:\/\/mizumoauto.com\/products\/motorad-379-187-thermostat-housing-assembly-w-seal-187-f","provider":"Mizumo Auto","version":"1.0","type":"link"}