Beck Arnley 143-0978 Engine Coolant Thermostat Housing Assembly

Brand Beck Arnley 143-0978
Temperature Activation Point 78c/172f
Fits Acura and Honda · 17 vehicles

OE direct replacement. Form, fit, and function match original equipment applications.

Thermostat housing assembly. Engine coolant housing for dependable cooling-system service.

78C/172F activation point. Opens at the specified temperature for precise coolant control.

$49.10Free shipping
In stock · usually ships same day before 1pm CST
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Order total $49.10
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Free returns within 60 days if it doesn't fit when fitment is verified.

OE-Style Thermostat Housing for Acura and Honda

Beck Arnley 143-0978 is an engine coolant thermostat housing assembly built for direct replacement on select Acura and Honda applications. It is specified with a 78C/172F temperature activation point, making it a fitment-focused choice for drivers replacing a worn or leaking thermostat housing on the RDX, TLX, or Accord.

Key Features

  • Engine coolant thermostat housing assembly for cooling system service
  • Temperature activation point: 78C/172F
  • OE-style replacement focused on form, fit, and function
  • Built for select foreign nameplate applications
  • Beck Arnley part number 143-0978

Detailed Description

Beck Arnley 143-0978 is engineered as a direct replacement thermostat housing assembly for foreign vehicle applications where OE-style fit and cooling system performance matter. The 78C/172F activation point is the key specification for this part, helping maintain the correct engine operating temperature in supported Acura and Honda models. This part number 143-0978 is a practical option when servicing the cooling system on a 2019-2025 Acura RDX, 2021-2025 Acura TLX, or 2018-2022 Honda Accord.

Beck Arnley sources parts through a global network and builds them to match the requirements of the original application. For buyers searching for a thermostat housing assembly for 2019-2025 Acura RDX, 2021-2025 Acura TLX, or 2018-2022 Honda Accord, this part is positioned as an OE-quality replacement with application-specific fitment.

What It Helps Address

  • Coolant leaks at the thermostat housing
  • Incorrect engine warm-up behavior from a worn thermostat assembly
  • Cooling system service on a 2019-2025 Acura RDX
  • Cooling system service on a 2021-2025 Acura TLX
  • Cooling system service on a 2018-2022 Honda Accord

Installation Notes and Tips

Verify the 78C/172F activation point before installation and confirm the vehicle application against the part number 143-0978. Inspect the mating surfaces, coolant passages, and related seals or hoses during service so the cooling system is ready for reassembly. After installation, refill and bleed the cooling system according to the vehicle service procedure.

Quality Assurance

Beck Arnley parts are sourced and specified to meet the requirements of the original application, with attention to form, fit, and function for foreign nameplates. This thermostat housing assembly follows that OE-replacement approach for supported Acura and Honda vehicles.

This part fits 17 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2025AcuraRDX2.0LL4N/ATEMPERATURE 78C/172F
2025AcuraTLX2.0LL4N/ATEMPERATURE 78C/172F
2024AcuraRDX2.0LL4N/ATEMPERATURE 78C/172F
2024AcuraTLX2.0LL4N/ATEMPERATURE 78C/172F
2023AcuraRDX2.0LL4N/ATEMPERATURE 78C/172F
2023AcuraTLX2.0LL4N/ATEMPERATURE 78C/172F
2022AcuraRDX2.0LL4N/ATEMPERATURE 78C/172F
2022AcuraTLX2.0LL4N/ATEMPERATURE 78C/172F
2022HondaAccord2.0LL4N/ATEMPERATURE 78C/172F
2021AcuraRDX2.0LL4N/ATEMPERATURE 78C/172F
2021AcuraTLX2.0LL4N/ATEMPERATURE 78C/172F
2021HondaAccord2.0LL4N/ATEMPERATURE 78C/172F
2020AcuraRDX2.0LL4N/ATEMPERATURE 78C/172F
2020HondaAccord2.0LL4N/ATEMPERATURE 78C/172F
2019AcuraRDX2.0LL4N/ATEMPERATURE 78C/172F
2019HondaAccord2.0LL4N/ATEMPERATURE 78C/172F
2018HondaAccord2.0LL4N/ATEMPERATURE 78C/172F