SKU: MMRAD-CTR-17S | UPC: 811580035159
Mishimoto 2017-2021 Honda Civic Type R Secondary Race Radiator
The Mishimoto Secondary Race Radiator delivers essential backup cooling for the 2017-2021 Honda Civic Type R (FK8) K20C1 engine during intense track sessions or spirited drives. This direct-fit kit mounts a compact all-aluminum heat exchanger behind the engine using robust steel brackets and integrates after the heater core to harness engine bay airflow. It boosts overall cooling efficiency and coolant capacity to maintain lower temperatures and extend driving time without overheating issues.
Key Features
- Compact All-Aluminum Core: 10.3in x 5.9in x 1.6in dimensions with 16 FPI fin density and 14mm tubes provide high-efficiency heat dissipation in tight spaces.
- Heavy-Duty Steel Brackets: Precision-welded brackets ensure secure mounting behind the OEM radiator for reliable performance under high heat loads.
- Direct Hose Integration: Taps into heater core return line with included -12AN fittings and braided lines for seamless coolant flow without modifying stock radiator.
- Increased Coolant Capacity: Adds 0.9 liters (0.24 gallons) to total system volume for better thermal mass and sustained cooling on track.
- Complete Kit: Includes radiator, brackets, hardware, hoses, clamps, and zip ties for plug-and-play installation using stock radiator cap.
Product Notes
- Designed for track and performance use to supplement OEM cooling system.
- Retains factory radiator functionality and appearance.
- Ships as special order with secure single-box packaging.
Installation Notes
- Professional installation recommended.
- Estimated install time 1-2 hours with basic hand tools. no cutting or permanent modifications required.
- Mounts to existing OEM locations with provided steel brackets and hardware.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2017-2021 | Honda | Civic | Type R |
| 2021 | Honda | Civic | Type R Limited Edition |
Why Choose Mishimoto?
- Mishimoto Lifetime Warranty covers defects in materials and workmanship.
- Engineered and dyno-tested in the USA for exact FK8 fitment and real-world performance gains.
- Over 20 years of automotive cooling expertise with millions of units sold worldwide.
Frequently Asked Questions
- Q: Will this fit 2023+ Honda Civic Type R (FL5)?
A: No, this kit is engineered specifically for 2017-2021 FK8 chassis Civic Type R models including Limited Edition. - Q: What materials are used in construction?
A: Features a TIG-welded all-aluminum radiator core with durable powder-coated steel mounting brackets and stainless steel hardware. - Q: Does installation require bleeding the cooling system or ECU tuning?
A: Standard cooling system bleed procedure recommended post-install. no ECU changes or radiator cap replacement needed.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Single box measuring 31 x 18 x 6 inches
- Weight: 14.9 lbs shipping weight (11.8 lbs product weight)
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