Beck Arnley 143-0879 Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing Assembly for Lexus

Beck Arnley 143-0879 is an engine coolant thermostat housing assembly built to match foreign nameplate OE specifications for form, fit, and function. It includes the housing, thermostat, and gasket/seal for a direct replacement on select Lexus applications with a 180-degree thermostat.

• Engine coolant thermostat housing assembly
• Includes housing, thermostat, and gasket/seal
• 180-degree thermostat temperature
• OE-style fitment for select Lexus models
• Beck Arnley part number 143-0879

OE-Style Replacement Details

Beck Arnley sources parts through a global network to match the original equipment specifications used on import vehicles. This thermostat housing assembly is built for Lexus GS300, GS350, GS450h, IS250, IS300, IS350, RC300, and RC350 applications where the factory cooling system calls for a 180-degree thermostat. The part number 143-0879 is a direct-fit cooling system service component for restoring proper thermostat housing function.

Compatible Vehicle Fitment

• Fits 2006 Lexus GS300, N/A
• Fits 2007-2011 Lexus GS350, N/A
• Fits 2013-2015 Lexus GS350, N/A
• Fits 2007-2011 Lexus GS450h, N/A
• Fits 2013-2018 Lexus GS450h, N/A
• Fits 2006-2015 Lexus IS250, N/A
• Fits 2006-2018 Lexus IS350, N/A
• Fits 2016-2018 Lexus IS300, N/A
• Fits 2016-2017 Lexus RC300, N/A
• Fits 2018 Lexus RC300, N/A
• Fits 2015-2017 Lexus RC350, N/A
• Fits 2018 Lexus RC350, N/A

What This Part Helps Address

• Leaking thermostat housing or gasket/seal
• Sticking thermostat affecting coolant flow
• Cooling system service on Lexus GS350, IS350, and related models
• Temperature control concerns tied to a worn housing assembly
• Replacement of a damaged or aging coolant outlet assembly

Installation Notes

Confirm engine application and model year before installation, since fitment varies by Lexus platform and production date. Replace the thermostat housing assembly as a complete unit when the housing, thermostat, or seal shows wear, and follow factory cooling system service procedures to bleed air from the system after installation. Beck Arnley 143-0879 is listed with OE temperature calibration at 180 degrees for the specified vehicles.

Quality Assurance

Beck Arnley parts are sourced to meet foreign nameplate OE specifications for form, fit, and function. This helps ensure the thermostat housing assembly aligns with the original cooling system requirements used on the listed Lexus GS300, GS350, GS450h, IS250, IS300, IS350, RC300, and RC350 applications.