Koyorad Performance Radiator
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Koyorad Performance Radiator - Mitsubishi Lancer Evolution IV (CN9A)/V (CP9A (V))/VI (CP9A (VI)) MT
Koyorad has been building aluminium radiators for Japan's toughest motorsport programmes for decades, and this core brings that same rally pedigree to the road. Designed for the Mitsubishi Lancer Evolution, it keeps the turbocharged 4G63 in its optimal temperature window whether you're on stock boost or well into a built engine setup, SKU HH030939.
This listing covers manual transmission Evo IV (CN9A), Evo V (CP9A (V)), and Evo VI (CP9A (VI)) models fitted with the 4G63T. It's a direct bolt-in replacement using all factory mounting points, hose connections, and fan shroud locations.
Note: Manual transmission fitment only. Requires the Evolution 7/8/9 fan for correct operation — the stock Evo IV-VI fan is not compatible.
Key Features
- All aluminium construction, Nocolok furnace brazed
- Hand TIG (Heliarc) welded joints
- Billet machined filler neck
- Triple pressure tested for leak-free reliability
- OE-specific mounting for fan shroud and hoses
- No modification required for install
- Sold individually
Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please confirm your Evo's model, chassis, and transmission type before ordering.
Not sure if this radiator suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.
Vehicle Compatibility
| Make | Model | Chassis | Engine |
|---|---|---|---|
| Mitsubishi | Lancer Evolution Evo IV | CN9A | 4G63 |
| Mitsubishi | Lancer Evolution Evo V | CP9A (V) | 4G63 |
| Mitsubishi | Lancer Evolution VI | CP9A (VI) | 4G63 |
Technical Specifications
| Spec | Value |
|---|---|
| Part Number (Koyorad Japan) | KH030939 |
| Part Number (Koyorad Australia) | HH030939 |
| Construction | All-aluminium core, tanks and brackets |
| Core Joining Method | Nocolok furnace brazed |
| Welding | Hand Heliarc (TIG) welded |
| Filler Neck | Billet aluminium, precision machined |
| Pressure Testing | Triple pressure tested |
| Transmission Compatibility | Manual transmission only |
| Mounting | Retains OEM fan shroud mounts and stock hose connections |
| Packaging | Sold individually |
No instructions available for this product.

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