{"product_id":"motorad-5155ktfs-engine-coolant-thermostat-housing-assembly","title":"Motorad 5155KTFS Engine Coolant Thermostat Housing Assembly","description":"\u003ch2\u003eOE-Style Thermostat Housing for Lexus Cooling Systems\u003c\/h2\u003e\u003cp\u003eThe Motorad 5155KTFS engine coolant thermostat housing assembly is built for OE-style fitment and temperature control in demanding cooling systems. It is specified for 180°F operation and includes the housing, Fail-Safe thermostat, and seal for select Lexus applications.\u003c\/p\u003e\u003cp\u003eCompatible with 1990-1997 Lexus LS400 and 1992-1997 Lexus SC400, this Motorad Kit line part is engineered to match OEM specifications and processes. The copper case and wax compound support quick response to coolant temperature changes, helping maintain stable engine operating temperature.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEngine coolant thermostat housing assembly for select Lexus vehicles\u003c\/li\u003e\n\u003cli\u003e180°F thermostat specification\u003c\/li\u003e\n\u003cli\u003eOE supplier manufacturing with OEM quality materials and safety standards\u003c\/li\u003e\n\u003cli\u003eCopper case and wax compound for responsive temperature control\u003c\/li\u003e\n\u003cli\u003ePlastic, stainless steel, copper, and rubber construction\u003c\/li\u003e\n\u003cli\u003eBlack and silver finish\u003c\/li\u003e\n\u003cli\u003eJiggle pin included\u003c\/li\u003e\n\u003cli\u003e1 outlet port, 1.5 in outlet diameter\u003c\/li\u003e\n\u003cli\u003e2.2 in flange diameter with 0.05 in flange thickness\u003c\/li\u003e\n\u003cli\u003e1.14 in bypass diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eMotorad 5155KTFS is a thermostat housing assembly from the Kit product line, built to OE specifications for direct replacement service on Lexus LS400 and Lexus SC400 models. The design uses OEM-quality materials and manufacturing processes to support consistent coolant flow control and temperature regulation. The included Fail-Safe thermostat is set to 180°F, making this part a practical choice for restoring factory-style thermal management in the cooling system. Part number 5155KTFS is also referenced as 95155KTFS.\u003c\/p\u003e\u003ch2\u003eWhat This Part Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEngine running too cool or too warm due to thermostat housing wear\u003c\/li\u003e\n\u003cli\u003eCoolant temperature instability during normal driving\u003c\/li\u003e\n\u003cli\u003eHousing deterioration from age, heat cycling, or coolant exposure\u003c\/li\u003e\n\u003cli\u003eLoss of proper thermostat response in Lexus LS400 and SC400 cooling systems\u003c\/li\u003e\n\u003cli\u003eService replacement for OE-specified 180°F thermostat housing applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify engine code and application details before installation on 1990-1997 Lexus LS400 or 1992-1997 Lexus SC400.\u003c\/li\u003e\n\u003cli\u003eInspect the mating surfaces and cooling passages before assembly.\u003c\/li\u003e\n\u003cli\u003eThis housing does not include bolts.\u003c\/li\u003e\n\u003cli\u003eThis housing does not include a separate gasket or seal beyond the included seal noted in the fitment description.\u003c\/li\u003e\n\u003cli\u003eUse the correct coolant fill and bleed procedure after installation to remove trapped air.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eMotorad manufactures this part as an OE supplier using OEM-quality materials and safety standards. The copper case and wax compound are selected to provide fast reaction to coolant temperature changes, supporting reliable thermostat operation in demanding automotive cooling systems.\u003c\/p\u003e","brand":"Motorad","offers":[{"title":"Default Title","offer_id":52876612567221,"sku":"BFNG-5155KTFS","price":51.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/TZ_5155KTFS_Fro.jpg?v=1785304365","url":"https:\/\/www.partcatalog.com\/products\/motorad-5155ktfs-engine-coolant-thermostat-housing-assembly","provider":"PartCatalog","version":"1.0","type":"link"}