AE86 4AG Koyo Radiator and parts

The stock radiator is good for stock driving. Motor swaps and harder driving require better cooling. We've got all the parts you need to help keep your engine cool!

Koyo Radiator - BEAMS swap

There's not much to say here, Koyo is one of the best. Larger capacity, double row cooling, stock chassis fitment with hose configurations for BEAMS swaps and an all brazed aluminum construction.

Fits with stock upper and lower mounts. We also offer bolt on fan shrouds and fans.

Radiator caps

We've got two options for the radiator caps, stock type replacement and the Koyo.

The stock type replacement has a .9 bar rating while the Koyo performance unit is rated at 1.3 bar.

Fan Shrouds and Fans

We've made a nice aluminum fan shroud for mounting up a 14" electric fan to make sure things cool down.

The two fans are a simple curved blade fan that will run a bit quieter then the Spal straight blade. While the Spal will be a louder, it does have a bit more airflow.

Fan Mounting Ties

If you don't want to run a fan shroud, we offer fan mounting ties to put the fan directly onto the radiator core.

The tie push through the fan fins and fan mounting tabs. The kit comes with 4 ties, foam pads, keeper nuts and springs if you want them to hold pressure or go without the springs to just hold with nut pressure.

If you want to mount a fan directly to the radiator, it will be best to measure the radiator core to gage fan size. We typically offer a larger fan that works with our shroud and may be to large to directly fit the radiator core.