Koyorad Performance Radiator: BMW 3 Series / M3 E30 / E36
Koyorad Performance Radiator: BMW 3 Series / M3 E30 / E36 is backordered and will ship as soon as it is back in stock.
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Koyorad Performance Radiator: BMW 3 Series / M3 E30 / E36
Koyo Performance Radiator – BMW 3 Series / M3 E36 & E30 MT
Application: BMW 3 Series / M3 | E36 (M50 / S50 / S52) & E30 (M20) | Manual Transmission
Part Number: KH422674
The E36 M3 and E30 3 Series are icons of the BMW performance lineage — lightweight, driver-focused machines that remain a staple of track days, hillclimbs, and motorsport builds decades after production ended. Whether you're running a stock S50, a built S52, or a classic M20, keeping coolant temperatures in check is critical to protecting your engine under sustained hard driving.
Koyorad's all-aluminium KH422674 is a direct bolt-in performance upgrade engineered specifically for manual transmission E36 and E30 applications. 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 | 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 | Manual (MT) |
| Fan Shroud | Retains OEM mounts |
| Hoses | Compatible with stock radiator hoses |
| Fitment | Direct bolt-in, no modifications required |
Cross Reference
| Koyorad | KH422674 |
| BMW OEM | 1711 1 469 179 |
| FHP | 1 392 E36 |
Fitment
| Year | Make | Model | Chassis | Submodel |
|---|---|---|---|---|
| 1992–1999 | BMW | 3 Series / M3 | E36 | M50 / S50 / S52 — Manual Transmission |
| 1988–1991 | BMW | 3 Series | E30 | M20 — Manual Transmission |
Sold individually. Manual transmission fitment only. Lead times may apply — contact us at ModsDirect for availability and shipping estimates.
ModsDirect is an Authorised Australian Distributor of Koyorad Performance Radiators.
Shop with confidence — all Koyorad products sold through ModsDirect are genuine, backed by manufacturer support, and shipped from Australia.
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