Description

25600-2G545 CONTROL ASSY-COOLANT TEMPERATURE Guide

Theta II Engine Thermal Control | Sonata, Santa Fe & Optima

The 25600-2G545 CONTROL ASSY-COOLANT TEMPERATURE is the essential engine component designed to restore the thermal integrity of your Hyundai or Kia Theta II series engine. This unit ensures maximum cooling system accuracy and superior structural integrity.

25600-2G545 CONTROL ASSY Fitment

  • Hyundai Sonata: 2.0L / 2.4L Theta II
  • Hyundai Santa Fe: 2.4L Engine Models
  • Kia Optima / K5: 2.0L & 2.4L GDI
  • Kia Sorento: 2.4L Theta Engine
  • Part Number: 25600-2G545

25600-2G545 Technical Specs

  • Type: Coolant Temperature Control
  • Material: Reinforced Thermal Polyamide
  • Application: Theta II GDI / MPI
  • Ports: Multiple Outlet Configuration
  • Standard: OE Precision Grade

Benefits of the 25600-2G545 CONTROL ASSY-COOLANT TEMPERATURE

Choosing the correct replacement part is vital for preventing engine warping. Using a premium 25600-2G545 CONTROL ASSY-COOLANT TEMPERATURE ensures that your engine stays within the safe zone even under high-load driving conditions. We strongly recommend browsing our Water Pumps and Coolant Concentrates for a complete cooling system restoration.

Verify 25600-2G545 CONTROL ASSY Fitment

To ensure this thermal control assembly is the perfect fit for your specific Theta II engine variant, please contact us for professional verification using your chassis number.


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Note: Original manufacturer part numbers are used for compatibility and reference purposes only.

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Questions and Answers

What is the primary function of this coolant temperature control assembly?
It serves as the main distribution hub for engine coolant, housing the thermostat and temperature sensors to maintain the engine's ideal thermal balance.
Which vehicles utilize the 25600-2G545 CONTROL ASSY-COOLANT TEMPERATURE?
It is a standard fitment for the 2.0L and 2.4L Theta II engines found in the Hyundai Sonata (2011–2014), Santa Fe, and Kia Optima/Sorento.
What are the common symptoms of a failing 25600-2G545 assembly?
Look for coolant leaks around the housing base, erratic temperature gauge readings, or the engine taking an unusually long time to reach operating temperature.
Is this component a direct replacement for the original part?
Absolutely. This assembly is built to meet exact OE specifications, including factory-aligned hose ports and sensor mounting points for a professional, leak-free installation.
Why is it recommended to replace the full assembly instead of just the gasket?
The 25600-2G545 CONTROL ASSY-COOLANT TEMPERATURE housing is subject to high pressure and heat; the composite material can warp over time, meaning a new gasket alone may not stop a leak.

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