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Fasteners› Wheel and Tire Fastener Kits

KoyoRAD

53mm Alloy Radiator

Name: 53mm Alloy Radiator
Brand: KoyoRAD
SKU: RX8KOYORAD

$335.45

SKU: RX8KOYORAD

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$100 Minimum Order

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Beginner — under 30 min

Description

The KoyoRAD Alloy Radiator is a high-performance cooling component specifically engineered for the Mazda RX8 13B-MSP SE3P model. Featuring a substantial 53mm core, this radiator offers enhanced cooling capacity over stock units. Its construction consists of an all-aluminium core, brazed to polished aluminium end tanks, providing both durability and a show-quality finish. Koyo employs advanced manufacturing techniques, including state-of-the-art Nocolok Brazing Furnace for bonding brackets, headers, tubes, and fins into a virtually indestructible unit, and Heliarc Soldering for robust end-tank connections. However, it does require the relocation of the main cooling hose, for which a kit is supplied. The model number for this specific radiator is KL061615V. It is noted that fitment is for the 2004-2008 models; for 2009 onwards models, modifications can be performed in-house. The RRP team uses this exact radiator on their track car, reporting consistent water temperatures between 85-90 degrees on the road and 90-98 degrees on track, even in hot conditions. The package includes the KoyoRAD 53mm radiator and an optional RRP Hose relocation kit. Key points of its engineering include tight quality control standards, Heliarc soldering, pristine tube and fin alignment, a mirror polished surface finish, and OEM specification fan mounts for plug-and-play installation.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

Brand	KoyoRAD
Part Number	RX8KOYORAD
Category	Heating and Cooling

Videos

13BREW RX8 Oil System (Part 2): Dual 25 Row Koyorad Oil Cooler Install on Your Mazda RX-8

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

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