Koyo HH814086 HH-Series 48mm All-Aluminum Performance Racing Radiator

The Koyo HH814086 is a high-performance, all-aluminum racing radiator built for enthusiasts who demand serious cooling under hard driving and track conditions. Featuring Koyorad's advanced 48mm Hyper Core technology with an ultra-high fin density, this radiator delivers maximum heat transfer capacity well beyond what the factory unit can offer.

Key Features:

• 48mm HH-Series Hyper Core — ultra-high fin density for maximum cooling efficiency
• All-aluminum construction — replaces the factory OEM plastic/aluminum radiator with a fully metal unit
• Nocolok furnace brazing — tubes, fins, headers, and brackets are bonded using a state-of-the-art Nocolok furnace process for exceptional strength and vibration resistance
• Heli-arc (TIG) hand welding — industry-leading aluminum weld quality along all connections
• Direct bolt-on fitment — OE-specific mounting points; no cutting, fabrication, or modifications required
• Compatible with OEM fans and shroud — retains factory fan switch, A/C condenser provisions, and accepts stock hoses
• 1/8" NPT accessory port — female fitting (with threaded plug) accepts aftermarket temperature sensors
• Triple pressure-tested — individually tested in Koyorad's ISO 9001-certified manufacturing facility
• Signature brushed aluminum finish — precise tube and fin alignment, clean from the factory

Dimensions:

• Overall Size: 34.5 in. wide x 17.5 in. tall
• Core Size: 25.5 in. x 11.5 in.
• Core Thickness: 48mm (1.89 in.)

The HH814086 is engineered as a true performance upgrade, not simply a replacement part. Its thicker 48mm core and precision construction are designed to substantially lower coolant temperatures under sustained high-load driving. Installation is straightforward with no modifications required, making it an ideal upgrade for both street and track use.