{"product_id":"motorad-447448-engine-coolant-thermostat","title":"Motorad 447448 Engine Coolant Thermostat - Cylinder Head","description":"\u003ch2\u003eReliable Engine Coolant Thermostat for Chevrolet and GMC Vehicles\u003c\/h2\u003e\u003cp\u003eThe Motorad Standard 447448 engine coolant thermostat is designed to maintain optimal engine temperature for select Chevrolet, GMC, and Hummer models. Engineered with precision, this thermostat ensures efficient coolant flow and temperature regulation to support engine performance and longevity.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSealing flange outside diameter: 2.2 inches\u003c\/li\u003e\n\u003cli\u003eHeight between flanges: 1.42 inches\u003c\/li\u003e\n\u003cli\u003eOverall height: 2.03 inches\u003c\/li\u003e\n\u003cli\u003eStart to open temperature: 185°F\u003c\/li\u003e\n\u003cli\u003eIncludes rubber gasket\/seal with O-ring seal type\u003c\/li\u003e\n\u003cli\u003eFeatures jiggle pin weep hole for pressure relief\u003c\/li\u003e\n\u003cli\u003eBypass diameter: 1.18 inches\u003c\/li\u003e\n\u003cli\u003eFlange thickness: 0.05 inches\u003c\/li\u003e\n\u003cli\u003eIncludes two seals for secure installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Motorad Standard Product Line\u003c\/h2\u003e\u003cp\u003eThe Motorad Standard line offers dependable engine cooling components designed to meet OEM specifications. This product line focuses on delivering consistent performance and fitment for a range of vehicles, including heavy-duty trucks and vans. The Standard 447448 thermostat is part of this line, providing a balance of quality and reliability for engine temperature control.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Motorad Standard 447448 engine coolant thermostat is engineered to open at 185 degrees Fahrenheit, allowing coolant to circulate through the engine and radiator at the correct temperature. The thermostat features a sealing flange with a 2.2-inch outside diameter and a height of 2.03 inches, ensuring proper fitment within the cooling system. The included rubber gasket with an O-ring seal type and two seals help prevent leaks and maintain system integrity. Additionally, the jiggle pin weep hole allows trapped air to escape, reducing the risk of overheating and improving coolant flow efficiency.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Common Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Express 2500 and 3500\u003c\/li\u003e\n\u003cli\u003eGMC Savana 2500 and 3500\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 2500 HD, 2500 HD Classic, 3500, 3500 Classic, and 3500 HD\u003c\/li\u003e\n\u003cli\u003eChevrolet Silverado 2500 HD, 2500 HD Classic, 3500, 3500 Classic, and 3500 HD\u003c\/li\u003e\n\u003cli\u003eHummer H1\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis thermostat is designed to regulate engine temperature and prevent overheating, which can cause engine damage, poor fuel economy, and increased emissions.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Thermostat\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEngine overheating due to stuck closed thermostat\u003c\/li\u003e\n\u003cli\u003ePoor heater performance from improper coolant flow\u003c\/li\u003e\n\u003cli\u003eCoolant leaks caused by worn or damaged seals\u003c\/li\u003e\n\u003cli\u003eEngine running too cool, affecting fuel efficiency\u003c\/li\u003e\n\u003cli\u003eAir trapped in cooling system causing hot spots\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eBefore installation, ensure the engine is cool and the cooling system is depressurized. Replace the old thermostat and gasket with the Motorad Standard 447448 unit, making sure the jiggle pin is positioned correctly to allow air to escape. Use the included rubber seals to prevent leaks and verify proper flange alignment. No special installation tools are required, but follow vehicle-specific service manual instructions for torque specifications and procedures.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe Motorad Standard 447448 thermostat is manufactured to meet or exceed OEM standards for durability and performance. It includes two rubber seals and an O-ring to ensure a secure, leak-free fit. While specific warranty details are not provided, Motorad products typically undergo rigorous quality control to ensure reliability in demanding automotive applications.\u003c\/p\u003e","brand":"Motorad","offers":[{"title":"Default Title","offer_id":45165762642101,"sku":"BFNG-447448","price":47.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/TZ_447448_Fro.jpg?v=1775103874","url":"https:\/\/www.partcatalog.com\/products\/motorad-447448-engine-coolant-thermostat","provider":"PartCatalog","version":"1.0","type":"link"}