Koyo - Radiator HH Series HH021568 - 03-06 Nissan 350Z

KoyoSKU: HH021568

Sale price$399.00

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Koyorad - Radiator HH Series HH021568 - 03-06 Nissan 350Z

The "HH" Series radiator core from Koyorad has a 48mm thickness and a high fin density to optimize heat transfer. Koyo takes great care in designing and producing their radiators, ensuring that each one is a precise drop-in replacement for the original plastic/aluminum version. Installation is easy and requires no alterations. Additionally, Koyo has included a 1/8" NPT female accessory fitting (and threaded plug) to accommodate temperature sensors commonly used with aftermarket gauges. 

Koyorad's superior quality comes from their privately owned factories, giving Koyorad Japan complete oversight over every stage of radiator production. This guarantees that quality is always prioritized over quantity. Each Koyo all aluminum radiator core is carefully hand assembled, Nocolok brazed, and TIG welded with the highest quality aluminum. These are just a few attributes that have solidified Koyorad Radiators as top-performing radiators in the global market.


  • Koyorad “HH” Series 48mm Hyper Core
  • OE Specific mounting and direct fit
  • Nocolok-R Brazing
  • Precise Tube and Fin alignment
  • Billet aluminum filler neck
  • 1/8” NPT female accessory fitting


2002-2006 Nissan 350Z 3.5L V6 (MT)

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