Koyo (Koyorad) all-aluminium performance radiator
Koyorad

Koyo (Koyorad) Performance Radiator: Mazda 6 MPS GG MT

$799.00

or 4 interest-free payments of $199.75 with Afterpay

Part no. VH062779

1

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Koyo Performance Radiator – Mazda 6 MPS GG MT

Application: Mazda 6 MPS | GG Chassis | Manual Transmission

Part Number: KV062779 | VH062779

The Mazda 6 MPS is one of the most underrated performance sedans of its era — a turbocharged, all-wheel-drive machine that punches well above its weight. When you're pushing the MPS hard, the factory cooling system can become a limiting factor under sustained high-load conditions. The Koyorad KV062779 is a direct bolt-in performance upgrade engineered for the GG Mazda 6, delivering improved cooling capacity without any cutting, drilling, or fabrication.

Koyorad's all-aluminium construction and high-efficiency 36mm core design dissipate heat faster and more effectively than the factory unit, keeping coolant temperatures in check even under sustained high-load driving. 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: KV062779
  • Alt Part Number: VH062779
  • Core Thickness: 36mm
  • Core Dimensions (H × W): 375 × 720/744mm
  • Tank Dimensions: 43/43 × 754mm
  • Inlet / Outlet Diameter: ⌢32mm (top and bottom)
  • Drain Plug: PI-1186
  • OEM Part Number: L3K9 15 200D
  • Construction: All Aluminium, Nocolok Brazed, Heliarc Welded
  • Transmission: Manual (MT)
  • Fitment: Direct bolt-in, no modifications required

Cross Reference

  • Koyorad: KV062779 / VH062779
  • Mazda OEM: L3K9 15 200D

Fitment Table

  • Year · Make · Model · Chassis · Submodel
  • 2005–2007 · Mazda · 6 MPS · GG · MPS — Manual Transmission

Sold individually. Manual transmission fitment only. Lead times may apply — contact us for availability and shipping estimates.

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