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Wednesday, March 3, 2021

Koyorad is proud to announce an all-aluminum high-performance radiator for the 5th Generation (2010-2020) Toyota 4Runner with 4.0L V6. Koyorad’s high density HyperCore measures 36mm thick, a 33% increase over the OEM unit which boosts the cooling system’s heat capacity and endurance under extreme use. With TIG welded all-aluminum tanks, this radiator is a long-lasting upgrade and perfect replacement for an aged and brittle OEM plastic tank radiator. Designed for serious off-road enthusiasts, the internal automatic transmission (AT) cooler has been purposefully omitted. An external transmission cooler (not included) will be necessary, which allows for visual inspections of the cooler itself and can be upsized and upgraded to offer improved transmission performance in the field. Since the internal AT cooler has been removed, the radiator will have zero risk of coolant and transmission fluid breech which can cause catastrophic engine and drivetrain damage. Advanced engineering and design, impeccable TIG welds, proficiency in furnace brazing, and triple pressure testing for quality has earned Koyorad the excellent reputation in performance cooling worldwide.


• All-aluminum construction with 36mm high density slim HyperCore

• No internal AT cooler eliminates the chance of coolant and transmission fluid breech on AT vehicles

• TIG welded and furnace brazed for strength

• Includes OEM style plastic side brackets for a direct fit

• Manufactured and triple pressure tested in Koyorad’s private ISO 9001 certified factory

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• 2010-2020 Toyota 4Runner 4.0L V6 (5th Generation) *See Notes for Auto Transmission vehicles

Special Notes:

• Off-Road Use Only, will require external transmission cooler (not included)

• Use Koyorad SK-C13 or equivalent deep plunger style radiator cap, not compatible with OEM cap

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