Koyo Performance Radiator – 1998–August 2000 Nissan Skyline R34 GT-R 2.6L Turbo

Upgrade the cooling system on your early R34 GT-R with a Koyo performance radiator. Engineered as a direct-fit replacement for the 1998–August 2000 Nissan Skyline R34 GT-R (BNR34), Koyo radiators deliver improved cooling capacity and long-term reliability for both street and track use — a critical upgrade for any high-boost or track-prepped RB26DETT build.

Important: This radiator is specific to the early R34 GT-R (1998 to August 2000 production) and manual transmission only. It is not compatible with R34 non-GT-R models — for R34 non-GT-R with RB25DE or RB25DET, use Koyo part number HH020442.

Key Features

• Direct OEM Fit: Engineered as a direct replacement for the early R34 GT-R — uses factory mounting points and connections for a clean, straightforward installation
• Improved Cooling Capacity: Superior heat dissipation compared to aging OEM units — essential for high-boost RB26DETT builds and track applications where thermal management is critical
• Manual Transmission Only: Fitment is for manual transmission R34 GT-R only — not compatible with automatic transmission variants
• Early R34 GT-R Specific: Fits 1998 to August 2000 R34 GT-R production only — later R34 GT-R production (post-August 2000) requires a different part number
• Koyo Quality: Manufactured by Koyo — a trusted OEM and aftermarket cooling supplier with decades of Japanese performance vehicle application experience

Specifications

• Type: Performance Radiator
• Fitment: 1998–August 2000 Nissan Skyline R34 GT-R BNR34 (Manual Transmission only)
• Engine: RB26DETT 2.6L Twin Turbo
• Part Number: HH020879

Note: Manual transmission fitment only. Specific to early R34 GT-R production (1998–August 2000) — verify your build date before ordering. For R34 non-GT-R (RB25DE/DET), use Koyo HH020442. Professional installation recommended. Coolant flush recommended during installation.