Koyo Performance Radiator Nissan Skyline R33 RB25DET / RB26DETT MT 1993-1999
Koyo Performance Radiator Nissan Skyline R33 RB25DET / RB26DETT MT 1993-1999
SKU: SKU: HH020442
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Koyo Performance Radiator – Nissan Skyline R33 RB25DET / RB26DETT MT 1993–1999
Application: Nissan Skyline | E-HCR33 (GTS25-T) & E-BCNR33 (GT-R) | RB25DET & RB26DETT Turbo Petrol RWD | Manual Transmission
Part Number: HH020442 / KH020442
⚠️ Note: This radiator does NOT fit the Nissan Skyline R34 GT-R (BNR34). Please ensure you select the correct part for your chassis.
The R33 Skyline is a genuine icon — whether it's the GTS25-T with its RB25DET or the legendary GT-R with the RB26DETT twin-turbo inline-six. Both engines generate serious heat under hard driving, and the factory cooling system has its limits when you're pushing boost on track or in spirited street use.
Koyorad's all-aluminium radiator is a direct bolt-in performance upgrade for the R33, engineered to the same factory fit and mounting points as the OE unit. 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 | HH020442 / KH020442 |
| Core Thickness | 48mm |
| Core Dimensions (H × W) | 400 × 643/671mm |
| Tube Pitch | 55/55 × 670mm |
| Inlet / Outlet Diameter | Ø35mm (top & bottom) |
| Drain Plug | M16 |
| 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 | HH020442 / KH020442 |
| Nissan OEM | 21410 15U00 |
Fitment
| Year | Make | Model | Chassis | Submodel |
|---|---|---|---|---|
| 1993–1998 | Nissan | Skyline | E-HCR33 (4D Sedan / 2D Coupe) | GTS25-T – RB25DET 2.5L Turbo Petrol RWD |
| 1995–1999 | Nissan | Skyline | E-BCNR33 (2D Coupe) | GT-R – RB26DETT 2.6L Twin Turbo Petrol AWD (206kW) |
❌ Does NOT fit: Nissan Skyline R34 GT-R (BNR34). A separate Koyorad part number is required for the R34 GT-R.
Sold individually. Manual transmission fitment only. Lead times may apply — contact us at Coore for availability and shipping estimates.
Coore Performance & Aftermarket is an Authorised Australian Distributor of Koyorad Performance Radiators.
Shop with confidence — all Koyorad products sold through Coore are genuine, backed by manufacturer support, and shipped from Australia.
