Wunderladen Tri Cooler Combo | 17-21 Civic Type R FK8

Fits:

• 2017 - 2021 Honda Civic Type R FK8

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If you track your FK8, you already know the story: coolant temps climb fast, and the factory system gets overwhelmed. The Wunderladen Racing Tri Cooler Combo is a complete cooling overhaul that tackles the biggest heat sources on the K20C1—engine oil, engine coolant load, and transmission temps—all in one integrated, purpose-built package.

What It Does (and Why It Works)

1) True Oil Cooling (without the typical sandwich plate)

From the factory, the FK8 uses an oil heater that routes both coolant and oil together to warm oil faster—but once up to temp, the cooling system is now stuck trying to pull heat out of the oil, adding load to an already stressed radiator system.

Wunderladen’s solution replaces that heater entirely with a dedicated oil cooler housing (not a sandwich plate), featuring:

• -10 ORB ports for large, leak-resistant O-ring sealed connections

• An integrated thermostat so oil warms up quickly, then routes through the cooler once at operating temp

• No coolant flow through the housing, so your coolant system isn’t tasked with removing oil heat anymore

The kit uses a robust 19-row oil cooler mounted in the main grille for maximum airflow. Stainless, bolt-on brackets use existing mounting points—no drilling or cutting.

2) Adds Cooling Capacity + Reduces Coolant System Load

This combo doesn’t stop at oil. The FK8 also has a transmission fluid heater that again uses engine coolant to manage temps. Wunderladen removes that heater block and adds:

• A 19-row secondary radiator (coolant heat exchanger) mounted beside the oil cooler in the main grille

• A 10-row transmission cooler mounted behind the driver-side bumper vent (LHD) for direct airflow

Bonus: the FK8 transmission already has an internal pump, so no inline pump is needed.

Modular Options

• Full Kit — complete Tri Cooler Combo

• Upgrade from Wunderladen Oil Cooler — if you already have their oil cooler kit and want to expand to the full tri-cooler system
  (Upgrade option requires the Wunderladen oil cooler—does not fit other brands.)

Key Features

• Replaces factory oil heater with a dedicated oil cooler housing (no sandwich plate)

• Integrated oil thermostat + -10 ORB fittings

• 19-row oil cooler in main grille with stainless bolt-on brackets (no cutting/drilling)

• Removes transmission heater block; adds 19-row coolant heat exchanger + 10-row trans cooler

• Uses the FK8’s internal transmission pump (no external pump required)

• Designed to help keep temps under control on track and reduce limp-mode risk