Koyorad HH021568 – 48mm Series Radiator for Nissan 350Z 2003-2006

Koyorad HH021568 – 48mm Series Radiator | Nissan 350Z (2003–2006)

Application: Nissan 350Z (2003–2006) | Part Number: HH021568

The Koyorad HH021568 is a high-performance 48mm core radiator engineered specifically for the Nissan 350Z (2003–2006). With a significantly thicker core than the OEM unit, this radiator delivers substantially improved cooling capacity — ideal for spirited street driving, track days, or any application where heat management is critical.

Constructed from lightweight, high-conductivity aluminium alloy, the HH021568 features Koyorad's precision-brazed construction for superior durability and thermal efficiency. The all-aluminium design reduces weight compared to OEM copper/brass units while dramatically improving heat dissipation.

Designed as a direct OEM replacement, the HH021568 bolts in without modification — retaining all factory mounting points, hose connections, and fan shroud compatibility for a clean, hassle-free installation.

Specifications:

Cross Reference:

If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.

Installation

We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.

Note

Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.