

Koyo (Koyorad) Performance Radiator: Honda Civic Type R FL5 2023+ All-Aluminium
$849.00
or 4 interest-free payments of $212.25 with Afterpay
Part no. HH083967
Available to order - allow extra time for delivery
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- Not sure it fits?Contact us with your car and we'll check before you order.
Koyo Performance Radiator – Honda Civic Type R FL5 K20C1 MT 2022+
Application: Honda Civic Type R | 6BA-FL5 | K20C1 2.0L Turbo Petrol | Manual Transmission
Part Number: KH083967
The FL5 Civic Type R is Honda's most focused performance car in a generation — a 228kW turbocharged front-driver that holds lap records at circuits around the world. The K20C1 is a highly stressed engine that generates serious heat under sustained high-load driving, and with the FL5 increasingly popular on track days and time attack events, cooling performance matters more than ever.
Koyorad's all-aluminium radiator is a direct bolt-in performance upgrade for the FL5, engineered to the same factory fit and mounting points as the OE unit. Nocolok furnace brazed, precision TIG welded by hand, and triple pressure tested — it retains all OEM fan shroud mounts and stock hose connections with no modifications required.
Why Koyorad?
- Precise Tube & Fin Alignment — Strict quality control ensures optimal coolant flow and maximum heat transfer efficiency across the entire core.
- Nocolok Furnace Brazing — All tubes, fins, headers, and brackets are bonded in a state-of-the-art Nocolok furnace, creating a structure that resists vibration, road debris, and the elements.
- Billet Filler Neck — Precision-machined billet filler necks are fitted to every unit for superior strength, durability, and a reliable seal.
- OE-Specific Mounting — Application-specific mounting points for fan shrouds, inlet/outlet hoses, and top/bottom pins ensure a pain-free, no-modification install.
- Hand-Crafted Heliarc Welds — Each radiator is individually Heliarc welded by hand, creating the strongest possible aluminium-to-aluminium bond across all components.
Specifications
- Part Number: KH083967
- Core Thickness: 48mm
- Core Dimensions (H × W): 400 × 755/775mm
- Tank Dimensions: 55/55 × 770mm
- Inlet / Outlet Diameter: TBA
- Construction: All Aluminium, Nocolok Brazed, Heliarc Welded
- Transmission: Manual (MT)
- Fan Shroud: Retains OEM mounts
- Hoses: Compatible with stock radiator hoses
- Fitment: Direct bolt-in, no modifications required
Cross Reference
- Koyorad: KH083967
- Honda OEM: 19010 6AA A01
Fitment
- Year · Make · Model · Chassis · Submodel
- 2022+ · Honda · Civic Type R · 6BA-FL5 · Type R – K20C1 2.0L Turbo Petrol (228kW) MT
Sold individually. Manual transmission fitment only. Lead times may apply — contact us for availability and shipping estimates.
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