Our new thermostat is designed not only to improve reliability (thanks to its superior construction and our strict quality control inspection process) but also to provide an earlier start in your engine's cooling process.

With a low temp thermostat in place your...

This simple adptor bolts into place on your block, where you can remove an existing bung.  It allows for a Defi type sensor to be installed to monitor either oil temperature or oil pressure, depending on your needs.  This removes...

A genuine Subaru Water Transfer Pipe O Ring.  2 will be required per car.

A genuine Subaru large orange Block O Ring seal, this is a water seal and is sandwiched between the 2 block halves.

A genuine Subaru Thermostat O ring gasket.

Water Pump Gasket 

Genuine Subaru thermostat, to fit Subarus from 1992 +

Genuine STI uprated high pressure radiator cap, rated to 1.3 Bar

Genuine Subaru radiator cap, to fit Subaru's from 1998 +

Genuine Subaru radiator hose clamp, for all Subaru's from 1992 +

Block Adaptor, this screws into the bottom of the engine block, and allows the modine water hose to be connected. 

The OE part is prone to rust and corrostion, and isnt available to buy a replacement. 

The RCM Stainless Steel version...