Koyorad Performance Radiator for Honda NSX NA1 / NA2 1990-2005
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Description
Koyo Performance Radiator – Honda NSX NA1 / NA2 (1990–2005)
Application: Honda NSX MT | NA1 / NA2 | C30A / C32B | 1990–2005
Part Number: KV082303R | V2032
The Honda NSX is one of the most iconic Japanese sports cars ever built — a mid-engined, aluminium-bodied masterpiece that redefined what a supercar could be. Whether you're preserving a concours example or pushing your NSX hard on track, the factory radiator can become a limiting factor under sustained high-load conditions. The Koyorad KV082303R is a direct bolt-in performance upgrade engineered specifically for the NA1 and NA2 NSX, delivering improved cooling capacity without any cutting, drilling, or fabrication.
Koyorad's all-aluminium construction and high-efficiency 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 | KV082303R |
| iilumolab SKU | V2032 |
| Core Thickness | 36mm |
| Core Dimensions (H × W) | 340 × 686/706mm |
| Tank Dimensions | 43/43 × 705mm |
| Inlet / Outlet Diameter | ⌢38mm (top and bottom) |
| Drain Plug | 42014 |
| Construction | All Aluminium, Nocolok Brazed, Heliarc Welded |
| Transmission | Manual (MT) |
| Fitment | Direct bolt-in, no modifications required |
Cross Reference
| Koyorad | KV082303R |
| Honda OEM | 19010 PRZ A03 / 19010 PRZ A04 |
Fitment Table
| Year | Make | Model | Chassis | Submodel |
|---|---|---|---|---|
| 1990–1997 | Honda | NSX | NA1 (2D Coupe) | Base – C30A1 3.0L Aspirated Petrol RWD (206kW) |
| 1995–2001 | Honda | NSX | NA1 (2D Coupe) | Base – C30A3 3.0L Aspirated Petrol RWD (201kW) |
| 1995–2005 | Honda | NSX | NA1 (2D Coupe) | Base – C30A4 3.0L Aspirated Petrol RWD (188kW) |
| 1997–2005 | Honda | NSX | NA2 (2D Coupe) | Base – C32B2 3.2L Aspirated Petrol RWD (206kW) |
Sold individually. Manual transmission fitment only. Lead times may apply — contact us at iilumolab for availability and shipping estimates.
iilumolab is an Authorised Australian Distributor of Koyorad Performance Radiators.
Shop with confidence — all Koyorad products sold through iilumolab are genuine, backed by manufacturer support, and shipped from Australia.
If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.
Installation
We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.
Note
Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.