NOTE: A refreshed version with new fittings and lighter hoses is being phased in! This current generation of HKS oil coolers will be discontinued once sold out.

HKS Oil Cooler S Type includes a built-in thermostat attachment, and which is held in place by the oil filter. Also, it provides superior cost performance.

[ Oil Temperature Meter: Oil Pressure Gauge Installation Hole]

Adaptor Thermo: M12×P1.25 (1hole) , PT1/8 (1 hole)

HKS Turbo and Supercharger Kit Clearance Friendly

Oil Temperature Controlled by Thermostat

HKS Oil Coolers use high performance cooling cores; so there is the possibility of overcooling which is prevented by the use of a thermostat (some vehicles excluded). This thermostat has high response and able to react quickly to change of oil temperature. Once oil temperature reaches the set level, the oil will flow through the cooler core but bypasses when temperatures drop lower. This allows engine oil to be maintained at the ideal temperature.

* Thermostat Opening Temperature 70℃ (±3℃)
* Thermostat Full Open Temperature 80℃ (±3℃)

Thermostat relief feature allows for safe operation in times of emergency

In cases where the core or lines become blocked and the oil pressure rises, the thermostat will bypass the core to maintain the correct oil pressure and prevent damage to the oil lines and fittings

Stainless braided hoses chosen for increasing durability

Hose lengths and fitting types are tailored to each vehicle application to ensure easy and tidy fitting while preventing connection errors.