Ford Focus ST/RS Radium FST Surge Tank with Install Kit / No Pump

This comprehensive installation kit includes everything needed to install a Radium fuel surge tank (FST-R) in a 2013+ Focus ST and 2015+ Focus RS. Also included are wiring components with flying leads featuring Raychem solderless butt splices, and a weatherproof fuse and relay to drive the FSTR-RA fuel pump. Wiring is very simple and takes less than 30 minutes to assemble. No soldering is required.

The Radium fuel surge tank is designed to prevent starvation to the engine on vehicles with inadequate fuel tank baffling. The surge tank pump feeds the fuel rail(s). The volume of fuel inside acts as a buffer to always keep the fuel surge tank pump supplied. This volume is maintained by the main fuel tank's (lift) pump as well as the fuel returning from the fuel pressure regulator.

In the case of the FST-R (fuel surge tank, regulated), the regulator is built into the surge tank and recirculates fuel internally. Excess fuel in the surge tank is returned back to the vehicle's main fuel tank.

Compatible fuel pumps sold separately:

Walbro GSS342

Walbro F90000274

Walbro F90000295

Ti Automotive BKS1001

Items may be limited please call for stock inquires.