



Radium Fuel Cell Subharness Kit
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Description
Radium Fuel Cell Subharness Kit
Application: Universal – designed around Radium FCST-X and RA-Series fuel cells
Part Type: Fuel cell electrical subharness kit
Part Number: 20-0774
The fuel cell subharness kit makes for quicker pit stops. Racers often keep a spare drop-in FCST-X fuel pump module in the pits in case of a pump or wiring fault – with a subharness on both FCST-X units, the whole pump assembly can be swapped without tools.
While mainly universal, the pre-terminated 10 AWG wires carry identification labels that match the FCST-X labelling (they also work with the older FCST, which is labelled slightly differently). The mounting bracket suits the perimeter of Radium RA-Series fuel cells and can also be used on other cells or mounted off the cell.
Key Features
- Tool-Free Swaps: Sealed bulkhead connector lets a complete pump module be disconnected and swapped in the pits
- Labelled Wiring: 26 pre-terminated 10 AWG wires labelled to match FCST-X
- Sealed Connector: Environmentally sealed CPC bulkhead connector
- Flexible Mounting: Bracket bolt spacing matches all RA-Series cells; can be rotated inward or outward for a 76mm (3in) location difference
What's Included
- Anodised aluminium fuel cell mounting bracket
- Environmentally sealed female CPC bulkhead connector and male CPC connector
- 16 x stamped 14–10 AWG open-barrel female contacts and 16 x male contacts
- Straight and right-angle black rubber boots
- Bulkhead panel hex nut and locking wave washer
- 25 x plugs for empty cavities
- 5 x cable ties
- 26 x labelled 10 AWG wires with pre-terminated ring terminals
Optional Parts
- Radium FCST-X, Fuel Cell Surge Tank (20-1990-00) – the drop-in pump module the wiring labels are matched to
Important Notes
- An open-barrel style crimper is required for the stamped contacts
- Chassis-side harness wiring is not included
- Wire loom (expandable sleeving, cloth tape etc.) is optional and not included
- For non-RA-Series fuel cells, bolt spacing must be 91–145mm (3.6–5.7in)
- Mount each wire to its stud first, then fit the bulkhead connector into the mount and install the mount; wires can be cut to length and terminated in place
- Installation instructions are available in the Instructions tab
Vehicle Fitment
- Universal – see Application
Not sure if this suits your vehicle? Email sales@coore.com.au and our team will confirm fitment.

