Performance Koyo Radiator, Subaru WRX, STI, 08-19, Liberty GT, 04-09, 36mm, (KV091662)

Performance Koyo Radiator, Subaru WRX, STI, 08-19, Liberty GT, 04-09, 36mm, (KV091662)

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KOYO-KV091662 International part number
KOYO-VH091662 Is used by Koyorad USA


HYPER V SERIES 36mm Core Thickness with Hyper Fin and Tube Pitch
The Hyper V-Core Series is the newest to the Koyorad | Koyo All Aluminum Racing Radiator line up. An engine’s cooling system in many newer vehicles is suffering due to limited space and crowding which affects air circulation. Our new ultra efficient Hyper V core was developed specifically for vehicles which see extreme heat, are limited in space, and where the factory inlet/outlet locations eliminate the option for a proper N-FLO design. The Hyper V Series radiators have a specially designed fin and tube pitch which significantly increases its surface area while still allowing for excellent air circulation through the radiator. The Hyper V-Core series is the perfect solution where space savings and high performance is a must. Unless noted otherwise, all Koyorad Hyper V-Series All Aluminum Radiators are Nocolok brazed, designed as a factory fit, direct bolt in with no engine modifications necessary, and retain mounts for the stock fan shrouds and fans. See notes in individual item descriptions for details.



  • Precise Tube and Fin Alignment: Construction under strict quality control and solid boxing result in tubes with optimal coolant flow and fins with highly efficient heat transfer.
  • Nocolok Brazing: Tubes, Fins, Headers and Brackets are brazed in a state-of-the-art Nocolok furnace, bonding all components to resist damage from vibration, road debris, and the elements.
  • Billet Filler Neck: Precision machined billet filler necks are incorporated on each Koyo radiator for strength, durability and better sealing.
  • OE Specific Mountin: Koyo incorporates application-specific mounting locations for all fan shrouds, inlet/outlet hoses and top/bottom mounting pins, ensuring quick and pain-free installs.
  • Hand Crafted Heliarc Welds: Each Koyo Alloy Race Radiator is Heliarc welded individually by hand. This creates the strongest aluminium to aluminium bond to mate all components.


2008-2014 Subaru WRX GH/GE/GR/GV (WRX Trim w/13mm turbo return pipe)
2015-2019 Subaru WRX VA
2008-2014 Subaru STI GRF/GVF (STI w/ 8mm turbo return pipe)
2015-2019 Subaru STI VAB (STI w/ 8mm turbo return pipe)
2004-2009 Subaru Liberty GT BL/BP

Note: Automatic vehicles will require external transmission cooler.

Tech Notes: Optional coolant port has M14-1.25 thread.