NEW Koyorad All-Aluminum Performance Radiator — 2003–2006 Nissan 350Z (Manual Transmission)

Part Number: VH021568 (Koyorad V-Series / HH Series)
Condition: Brand New in Box (NIB)
Transmission: Manual Transmission (M/T) Only
Engine Compatibility: 3.5L VQ35DE (Base, Enthusiast, Touring, Track, Grand Touring)

Detailed Product Overview

Upgrade your cooling capacity and eliminate plastic end-tank failure points with the Koyorad All-Aluminum Performance Racing Radiator (Part # VH021568) for the 2003–2006 Nissan 350Z and Infiniti G35 Coupe. Engineered in Japan, Koyorad radiators are built for street performance, track days, drifting, and high-heat environments.

Featuring Koyorad’s high-density 36mm Hyper Core, this unit significantly increases coolant volume and heat dissipation over the thin factory OE plastic-tank radiator. Fully NIGRA-brazed aluminum construction ensures maximum structural rigidity under severe pressure and vibration, while retaining direct drop-in fitment with factory fan shrouds and OEM hoses.

Key Features & Performance Benefits

100% Aircraft-Grade Aluminum: Full TIG-welded tanks and core eliminate cracking and leaking common with aged OEM plastic end tanks.

High-Density 36mm Hyper Core: Increases surface area for superior heat transfer, keeping VQ35DE oil and engine temperatures stable under hard driving.

OEM Fitment & Fan Shroud Retention: Engineered specifically for 03–06 350Z M/T chassis—mounts using factory fan shrouds, A/C condenser brackets, and radiator supports.

Billet Aluminum Filler Neck: Micro-polished billet filler neck accepts standard OE or aftermarket high-pressure radiator caps.

NNOBRAZE Technology: Advanced furnace-brazing process guarantees maximum durability and corrosion resistance.