KOYORAD Performance Radiator
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Koyo Performance Radiator - BMW M3 (E46)
Koyorad builds all-aluminium radiators using Nocolok furnace brazing and hand-formed Heliarc welds, giving the core more strength and better heat transfer than the factory plastic tank unit. For the BMW M3 (E46) and its high-revving S54, that means more consistent cooling under sustained track or hard road use.
This listing covers the BMW M3 E46 Coupe and Convertible (2001-2006), plus the E46 CSL (2003), all fitted with the S54B32 3.2L I6 and either Manual or SMG transmission. It's a direct bolt-in, using the OEM fan shroud mounts, hose positions and mounting pins with no modification required.
Specifications
- Part Number: HH422675 / KH422675
- Construction: All aluminium, Nocolok brazed, Heliarc welded
- Core thickness: 48mm
- Core dimensions (H x W): 580 x 394/426mm
- Tube pitch: 55/55 x 414mm
- Inlet/Outlet: 38mm, top and bottom
- Billet filler neck
- Transmission: Manual & SMG
- BMW OEM reference: 1710 2 228 941
- Sold individually
Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please ensure your vehicle's year, submodel, and transmission are confirmed 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 |
|---|---|---|---|
| BMW | M3 | E46 | S54B32 |
Technical Specifications
| Spec | Value |
|---|---|
| Part Number | HH422675 / KH422675 |
| Core Thickness | 48mm |
| Core Dimensions (H x W) | 580 x 394/426mm |
| Tube Pitch | 55/55 x 414mm |
| Inlet / Outlet | 38mm (top and bottom) |
| Construction | All aluminium, Nocolok brazed, Heliarc welded |
| Transmission Compatibility | Manual & SMG |
| OEM Cross Reference | BMW 1710 2 228 941 |
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