Koyo (Koyorad) Half-Size Race Radiator: Mitsubishi Lancer Evolution VII / VIII / IX 4G63T MT 2001-2007

Koyo Half-Size Race Radiator – Mitsubishi Lancer Evolution VII / VIII / IX 4G63T MT 2001–2007

Application: Mitsubishi Lancer Evolution VII / VIII / IX | CT9A / CT9W | 4G63T | Manual Transmission | 2001–2007

The Lancer Evolution VII, VIII, and IX are among the most celebrated all-wheel-drive performance platforms ever built — WRC-derived machines powered by the legendary turbocharged 4G63T. For serious track and race builds where space is at a premium, Koyorad's HH032412 half-size race radiator offers a compact, high-performance cooling solution engineered specifically for the CT9A/CT9W platform.

At roughly half the width of a standard radiator, the HH032412 is designed for drag, small track, and short duration race builds where intercooler placement, turbo piping, or custom front-end configurations demand a narrower core. Nocolok furnace brazed, precision TIG welded by hand, and triple pressure tested — it delivers serious cooling performance in a compact package.

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.
• Compact Race Design — Half-size core allows for flexible front-end packaging in race and time attack builds where space is critical.
• 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: HH032412
• Core Thickness: 48mm
• Core Height: 14.5" (368mm)
• Overall Height: 19" (483mm)
• Core Width: 13.5" (343mm)
• Overall Width: 14.5" (368mm)
• Inlet / Outlet Diameter: ⌀35mm (top and bottom)
• Construction: All Aluminium, Nocolok Brazed, Heliarc Welded
• Design: Half-Size Race Radiator
• Transmission: Manual (MT)

Cross Reference

• Koyorad: HH032412
• Mitsubishi OEM: TBA

Fitment

• Year · Make · Model · Chassis · Submodel
• 2001–2002 · Mitsubishi · Lancer · CT9A (4D Sedan) · Evolution VII — 4G63T 2.0L Turbo Petrol AWD (206kW)
• 2003–2005 · Mitsubishi · Lancer · CT9A (4D Sedan) · Evolution VIII — 4G63T 2.0L Turbo Petrol AWD (206kW)
• 2005–2007 · Mitsubishi · Lancer · CT9A (4D Sedan) · Evolution IX — 4G63T 2.0L Turbo Petrol AWD (206kW)
• 2005–2006 · Mitsubishi · Lancer · CT9W (4D Wagon) · Evolution IX — 4G63T 2.0L Turbo Petrol AWD (206kW)

Installation Notes

• MT Only — Manual transmission models only.
• Race Use: This half-sized radiator is intended for drag, small track, and short duration race vehicles only. Modifications may be required.

Sold individually. Lead times may apply — contact us for availability and shipping estimates.