Performance Koyo Radiator, Subaru Forester, Impreza, Outback, XV, 00-17, 36mm, (KV091662)

Koyo Hyper V-Series Radiator — KOYO-KV091662 / VH091662

Premium All-Aluminum Racing Radiator for Subaru Models

The Koyo Hyper V-Series 36mm Core Radiator is designed for high-performance Subaru vehicles that demand superior cooling efficiency in tight engine bays. Featuring Koyorad’s exclusive Hyper V fin and tube pitch technology, this radiator maximizes surface area and airflow for excellent heat dissipation while maintaining a slim profile.

Manufactured under stringent quality control standards, this radiator is Nocolok brazed in a state-of-the-art furnace and hand-welded with Heliarc precision, ensuring ultimate durability against vibration, thermal cycling, and road debris.

The radiator is a direct bolt-in replacement, preserving all factory mounting points, fan shrouds, and hose fittings for effortless installation with no engine modifications.

Features

• 36mm Hyper V-Core: Ultra-efficient core designed for vehicles experiencing extreme heat and limited under-hood space.

• Nocolok Brazing: High-strength brazed joints for long-lasting reliability.

• Billet Filler Neck: Machined for superior sealing and durability.

• OE Mounting Points: Exact fit with factory fan shrouds, hoses, and brackets.

• Handcrafted Heliarc Welds: Ensures strong aluminum-to-aluminum bonding.

• Optional Coolant Port: M14-1.25 threaded port for additional coolant sensor or fittings.

OEM & Cross-Reference Numbers

• KOYO Part Numbers: KV091662 (International), VH091662 (Koyorad USA)

• OEM Numbers:

  • 45111AG010, 45111AG011, 45119AG010, 45119FG050, 45119GA010, 45119SC010, 45119VA000

  • 45111AG030, 45111AG031, 45119AG030, 45119FG010

• REPCO: RAD1702

Vehicle Fitment

(Subaru Forester, Impreza, Outback, XV, Legacy/Liberty – detailed list as above)

Important Notes

• Automatic transmission models require an external transmission cooler for proper cooling.

• Confirm fitment with images or sample before purchase if possible.

Customer Reviews

⭐️⭐️⭐️⭐️⭐️
"Upgraded my 2010 Subaru Forester with this Koyo radiator, and it made a huge difference in engine temps. Fits perfectly and was easy to install — no modifications needed. Quality construction and noticeably more durable than OEM." — Mike R.

⭐️⭐️⭐️⭐️⭐️
"This radiator is a game changer for the Subaru WRX. The Hyper V core keeps my engine cooler even under track conditions. The billet filler neck feels very solid. Highly recommend for anyone wanting a reliable, high-performance upgrade." — Sarah L.

⭐️⭐️⭐️⭐️
"Good fitment and build quality. Installation was straightforward. The only reason I gave 4 stars is because it took a couple of weeks to arrive, but the product itself is top notch." — Jason T.