Koyo (Koyorad) Performance Radiator: Nissan Skyline GT-R R34 RB26DETT MT 2000-2002

Koyo Performance Radiator – Nissan Skyline GT-R R34 RB26DETT MT 2000–2002

Application: Nissan Skyline GT-R | BNR34 (2D Coupe) | RB26DETT 2.6L Twin Turbo Petrol AWD | Manual Transmission

Part Number: HH023194 / KH023194

The late-production R34 GT-R — covering the V-Spec II and Nür editions — represents the absolute pinnacle of the BNR34 lineage. The RB26DETT is a legendary engine that responds exceptionally well to modification, and at elevated power levels the cooling system becomes a critical component. Whether you're running stock boost or pushing serious power, keeping coolant temperatures in check is non-negotiable.

Koyorad's all-aluminium radiator is a direct bolt-in performance upgrade for the BNR34, 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: HH023194 / KH023194
• Core Thickness: 48mm
• Core Dimensions (H × W): 450 × 643/671mm
• Tube Pitch: 55/55 × 670mm
• Inlet / Outlet Diameter: Ø35mm (top & bottom)
• 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: HH023194 / KH023194

Fitment

• Year · Make · Model · Chassis · Submodel
• 2000–2002 · Nissan · Skyline · BNR34 (2D Coupe) · GT-R V-Spec II / Nür – RB26DETT 2.6L Twin Turbo Petrol AWD (206kW)

Sold individually. Manual transmission fitment only. Lead times may apply — contact us for availability and shipping estimates.