{"product_id":"stant-45899-engine-coolant-thermostat","title":"Stant 45899 Engine Coolant Thermostat","description":"\u003ch2\u003eStant Superstat 45899 Thermostat Overview\u003c\/h2\u003e\u003cp\u003eThe Stant Superstat 45899 engine coolant thermostat is a 195-degree OE-temperature replacement built for consistent coolant control in a wide range of GM vehicles. It is a fitment-based choice for drivers servicing applications such as the Chevrolet Malibu, Pontiac Grand Prix, and Buick Regal.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e195-degree thermostat temperature rating for OE-style engine warm-up and cooling control\u003c\/li\u003e\n\u003cli\u003eHigh-venturi design for improved coolant flow during high-temperature, high-load operation\u003c\/li\u003e\n\u003cli\u003e25% larger piston diameter for increased opening force versus standard thermostats\u003c\/li\u003e\n\u003cli\u003eStainless steel flange with a burnished finish for added corrosion resistance and stress relief\u003c\/li\u003e\n\u003cli\u003eThicker flange construction for added durability\u003c\/li\u003e\n\u003cli\u003eSeal included per listed fitment notes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eBuilt under the Stant Superstat thermostat line, part number 45899 is engineered for applications that need stable operating temperature control without deviating from OE temperature targets. The 195 Degrees specification matches the listed factory-style applications, while the larger piston and high-venturi design help maintain coolant movement when the engine is under load. This makes the Stant 45899 a practical replacement for vehicles that rely on precise thermostat response for everyday driving and demanding conditions.\u003c\/p\u003e\u003cp\u003eCompatible With select 1987-2009 Chevrolet, Buick, Pontiac, GMC, Saturn, Oldsmobile, Cadillac, and related GM platforms, including Chevrolet Equinox, Pontiac Torrent, Buick Rendezvous, and Chevrolet Silverado 2500 HD Classic applications listed in the fitment data. Part number 45899 is also referenced in searches for Stant 45899 thermostat and Superstat 45899 coolant thermostat.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Part Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEngine running cooler or hotter than the intended OE temperature range\u003c\/li\u003e\n\u003cli\u003eDelayed warm-up after cold starts\u003c\/li\u003e\n\u003cli\u003eUnstable coolant temperature during towing, hauling, or stop-and-go driving\u003c\/li\u003e\n\u003cli\u003eThermostat sticking open or closed\u003c\/li\u003e\n\u003cli\u003eCorrosion-related wear at the thermostat flange area\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the 195-degree temperature rating and match the vehicle application before installation. Confirm the flange dimensions, bypass plate diameter, and housing fitment against the original thermostat. Clean the sealing surfaces thoroughly and inspect the cooling system for contamination, leaks, or worn hoses before reassembly. For body fitment, examples include Fits 2005-2007 Chevrolet Equinox, N\/A; Fits 2006-2009 Pontiac Torrent, N\/A; and Fits 2002-2007 Buick Rendezvous, N\/A.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eStant Superstat thermostats are built to OE-style specifications with materials selected for durability and corrosion resistance. The stainless steel flange and thicker flange design support long-term service in cooling system applications. This part cross-references no listed interchange numbers for the same application.\u003c\/p\u003e","brand":"Stant","offers":[{"title":"Default Title","offer_id":52734110302389,"sku":"BCNX-45899","price":21.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ST_45899_Fro.jpg?v=1782277961","url":"https:\/\/www.partcatalog.com\/products\/stant-45899-engine-coolant-thermostat","provider":"PartCatalog","version":"1.0","type":"link"}