Performance Koyo Radiator, Mazda RX8, 04-08, 36mm, (KV061615R)

Koyorad V-Series 36mm Radiator Core – Direct Fit Cooling Upgrade for 2004-2008 Mazda RX-8 (KOYO-KV061615R / V2695)

Upgrade your 2004-2008 Mazda RX-8 radiator with the Koyorad V-Series 36mm Radiator Core (KOYO-KV061615R / KOYO-V2695), engineered for enthusiasts and daily drivers needing a slim yet powerful cooling solution. Designed specifically for tight engine bays where space is limited, this radiator provides exceptional heat dissipation without compromising fitment.

The Koyorad V-Series radiator features a 36mm core thickness, perfect for RX-8 owners looking to replace or upgrade the factory unit without clearance issues. Built with precision and care, each radiator is Nocolok brazed, hand TIG welded, and features a precision-machined billet filler neck for durability and improved sealing. With OEM-specific mounts, installation is simple, bolt-in, and requires no engine or fan modifications.

Whether you’re tearing up the streets or hitting the track, this Koyorad radiator delivers reliable cooling performance tailored to your RX-8’s unique needs. For automatic transmission models, pairing with an external transmission cooler is recommended to protect drivetrain components.

Features and Benefits:

• 36mm Core Thickness – Slim design ideal for tight engine compartments without sacrificing cooling efficiency.

• Precise Tube and Fin Alignment – Ensures optimal coolant flow and maximized heat transfer for reliable temperature control.

• Nocolok Brazing – Advanced brazing process bonds tubes, fins, headers, and brackets for long-lasting durability against vibration and corrosion.

• Billet Filler Neck – Precision-machined for enhanced strength, durability, and better sealing under pressure.

• OE-Specific Mounting – Application-specific mounts for fan shrouds, hoses, and pins make for hassle-free installation—no modifications required.

• Hand-Crafted Heliarc Welds – Each radiator is individually TIG welded by hand, delivering unmatched aluminum-to-aluminum bond strength.

• 1/8” NPT Sensor Port – Supports aftermarket temperature gauge installation (plug included).

• External Transmission Cooler Required – For automatic transmission models, to ensure optimal transmission performance and cooling.

Slim Fit, Big Cooling for RX-8 Drivers

Don’t let a tight engine bay limit your cooling options. The Koyorad V-Series radiator offers high-performance cooling with a compact 36mm core thickness—perfect for 2004-2008 Mazda RX-8 owners who need a direct-fit, no-fuss upgrade. Whether daily cruising or spirited driving, this radiator keeps your RX-8’s rotary engine running cool and confident.

Technical Specifications: