Koyo (Koyorad) Performance Radiator: Mazda MX-5 Miata NC MT 2006-2013

Koyo Performance Radiator – Mazda MX-5 / Roadster (NC) 2005–2015

Application: Mazda MX-5 / Roadster | NC (2D Roadster) | 1.8L & 2.0L Aspirated Petrol RWD | Manual Transmission

Part Number: VH061885 / KV061885

The NC MX-5 brought a more refined, modern platform to the roadster formula — more power, more technology, and a tighter, more complex engine bay. That complexity is exactly why cooling matters more than ever. Koyorad's Hyper V-Core 36mm Series was developed for vehicles where limited space and crowded engine bays restrict airflow and rule out a conventional N-FLO design.

The Hyper V-Core's specially engineered fin and tube pitch dramatically increases surface area without sacrificing airflow through the core — delivering efficient heat transfer whether you're on a track day or a long weekend drive. It's a direct bolt-in replacement that retains all OEM fan shroud mounts and stock hose connections, so installation is clean and straightforward.

Every Koyorad All Aluminium Racing Radiator is Nocolok furnace brazed, precision TIG welded by hand, and triple pressure tested before leaving the factory.

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: VH061885 / KV061885
• Core Type: Hyper V-Core
• Core Thickness: 36mm
• Core Dimensions (H × W): 560 × 419/429mm
• Tube Pitch: 43/43 × 437mm
• Inlet Diameter: Ø32mm (left)
• Outlet Diameter: Ø32mm (right) / Ø17mm (overflow)
• Rows: 2-Row, High Density 36mm
• 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: VH061885 / KV061885
• Mazda OEM: LFG1 15 200E

Fitment

• Year · Make · Model · Chassis · Submodel
• 2005–2015 · Mazda · MX-5 · NC (2D Roadster) · Base – L8DE 1.8L Aspirated Petrol RWD (93kW)
• 2005–2015 · Mazda · MX-5 · NC (2D Roadster) · Base – LFDE 2.0L Aspirated Petrol RWD (118kW)

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