KOYORAD Performance Radiator
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Koyorad Performance Radiator - BMW 3 Series/M3 (E36) / 3 Series (E30) - Manual Transmission
Koyorad builds all aluminium radiators to genuine OE-spec tolerances, using Nocolok furnace brazing and hand welded Heliarc joints for a stronger, longer lasting core than the factory unit. The BMW 3 Series and M3 are staples of track and motorsport use decades on, and cooling capacity is one of the first things that gets pushed hard when lapping or hillclimbing.
This listing covers manual transmission BMW 3 Series/M3 (E36) fitted with M50, S50 or S52 engines, and manual transmission BMW 3 Series (E30) fitted with the M20. It's a direct bolt-in replacement, retaining OEM fan shroud mounts and stock hose connections with no modification required. SKU HH422674.
Note: Manual transmission fitment only — not suited to automatic applications.
Specifications
- Part Number: KH422674
- Core Thickness: 48mm
- Core Dimensions (H x W): 431 x 550mm
- Tank Dimensions: 55/55 x 435mm
- Inlet/Outlet Diameter: 38mm
- Drain Plug: M14 x P1.5
- Construction: All aluminium, Nocolok brazed, Heliarc welded
- Sold individually
Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please ensure your vehicle's chassis and transmission type 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 | 3 Series | E30 | M20 |
| BMW | 3 Series | E36 | M50 |
| BMW | 3 Series | E36 | S50 |
| BMW | 3 Series | E36 | S52 |
| BMW | M3 | E36 | M50 |
| BMW | M3 | E36 | S50 |
| BMW | M3 | E36 | S52 |
Technical Specifications
| Spec | Value |
|---|---|
| Part Number | KH422674 |
| Core Thickness | 48mm |
| Core Dimensions (H × W) | 431 × 550mm |
| Tank Dimensions | 55/55 × 435mm |
| Inlet / Outlet Diameter | ⌀38mm / ⌀38mm |
| Drain Plug | M14 × P1.5 |
| Construction | All aluminium, Nocolok brazed, Heliarc welded |
| Transmission Compatibility | Manual (MT) |
| Fan Shroud Fitment | Retains OEM mounts |
| Hose Compatibility | Compatible with stock radiator hoses |
| Fitment Type | Direct bolt-in, no modifications required |
| OEM Cross Reference | BMW 1711 1 469 179; FHP 1 392 |
No instructions available for this product.

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