Koyo 03-06 Nissan 350Z 3.5L V6 Radiator - HH021568

Koyo 03-06 Nissan 350Z 3.5L V6 Radiator – HH021568

The Koyo HH021568 is a high-performance aluminum radiator engineered to keep your VQ35DE-powered 350Z running cool under the toughest conditions. Designed specifically for 2003-2006 Nissan 350Z models with the 3.5L V6 and manual transmission, this radiator delivers improved heat dissipation and reliability over the factory unit—making it perfect for both spirited street driving and competitive motorsports.

Featuring a 53mm high-capacity all-aluminum core and high fin density, the HH021568 provides maximum cooling efficiency to maintain stable temperatures during high-load situations. TIG-welded end tanks and Nocolok-brazed construction ensure long-lasting durability and performance. Its direct-fit design uses all OEM mounting points, works with the factory fan shroud and hoses, and requires no modifications for installation.

Whether your Z is a daily driver, weekend canyon carver, or dedicated track machine, the Koyo HH021568 ensures your VQ runs at peak performance.

Features:

• Direct fit for 2003-2006 Nissan 350Z with 3.5L VQ35DE and manual transmission

• 53mm high-capacity all-aluminum core for superior cooling performance

• High fin density for maximum heat transfer

• TIG-welded end tanks for strength and reliability

• Works with OEM fan shroud and hoses

• No modifications required for installation

Part Number: HH021568

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