Built with a robust 53mm core, the R-Core Series is engineered for the serious performance tuner. Increased capacity means better cooling reserve when you need it. Intended for both circuit and daily use, you may double your coolant capacity and see up to 35% increased performance over your stock radiator.
All Koyorad R-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.
 
Note: The Factory / OEM Cap does not work with the Koyo Radiator. We recommend adding the Koyo Cap when purchasing the radiator.
 
This radiator can be used for both 7M and JZ engines. The bottom has a fitting for a coolant temp sensor.
 
This radiator is for a MANUAL TRANSMISSION. If you have an automatic transmission you would need to add an additional transmission oil cooler.