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Quick Fill Racing Without the Wasted Seconds at Pit Wall
Every second spent fumbling with a standard screw cap filler during a pit stop or track day fuel-up is a second off the clock. The Radium Engineering FCST-X Complete Refueling Kit solves that with a remote mounted 1.5 inch dry break filler paired with a high flow vent system, letting the fuel cell take on fuel far faster than a conventional gravity fill setup allows. Built specifically for fuel cells equipped with the Radium FCST-X surge tank, this kit relocates the fill point away from the cell itself so drivers and crew can fill from a fender or body panel location instead of reaching into the trunk or hatch area.
Key Features
- Remote mounted 1.5 inch dry break filler for fast, spill resistant fueling
- Includes a 5 gallon dump can sized for quick pit lane or paddock refueling
- High flow vent system designed to keep air moving out as fuel moves in
- Compatible exclusively with Radium Engineering FCST-X equipped fuel cells
- Anodized aluminum and stainless steel hardware built for repeated track use
- Dry break design seals the fill line during disconnection to reduce fuel spillage
Specifications
| Detail | Value |
|---|---|
| Brand | Radium Engineering |
| Part Number | 20-1841-03 |
| SKU | RAD20-1841-03 |
| UPC | Not assigned by manufacturer |
| Mount Type | Remote mount |
| Filler Type | 1.5 inch dry break |
| Dump Can Capacity | 5 gallon |
| Compatibility | Radium Engineering FCST-X equipped fuel cells |
| Construction | Anodized aluminum housing, stainless steel hardware |
| Warranty | 1 Year Limited Warranty from Radium Engineering |
What's Included
- Remote mount 1.5 inch dry break filler
- Angled swiveling fill neck for the FCST-X
- Flexible 1.5 inch ID filler hose
- High flow vent valve and vent hose
- 5 gallon dry break dump can
- Mounting hardware
About Radium Engineering
Radium Engineering designs and manufactures fuel system, forced induction, and chassis components for performance and motorsports applications out of Oregon. The brand is best known for its fuel cell surge tanks, catch cans, and fuel rail systems used across road racing, drifting, and time attack builds, with a focus on repeatable durability under sustained track conditions.
FAQ
What is the 20-1841-03?The 20-1841-03 is the Radium Engineering FCST-X Complete Refueling Kit in a remote mount, 1.5 inch dry break configuration. It includes a remote fill neck, dry break filler, 5 gallon dump can, and a high flow vent system built specifically for fuel cells fitted with the Radium FCST-X surge tank.
Will this kit work with any fuel cell?No. This kit is only compatible with fuel cells that have a Radium Engineering FCST-X surge tank installed. It will not mount to a standard fuel cell or a different surge tank brand without additional adapters.
What is a dry break filler and why use one?A dry break filler uses a sealed male and female connector so fuel stops flowing the instant the dump can is disconnected. This reduces spillage compared to a standard nozzle and speeds up refueling during pit stops or track sessions.
Can this be direct mounted instead of remote mounted?This particular kit is the remote mount version, meaning the fill point is relocated away from the fuel cell to a body panel or fender location. Radium also offers a direct mount version for cells where the filler can sit directly on top of the tank.
Does the kit include the dump can?Yes. The kit includes a 5 gallon dry break dump can designed to mate with the included remote filler for quick disconnect fueling.
What size hose does this kit use?The kit uses a 1.5 inch inside diameter flexible filler hose that connects the remote fill neck to the FCST-X mounted elbow.
Is professional installation required?Installation involves fabricating a mounting location for the remote filler, routing the fuel and vent hoses, and connecting to the FCST-X fill neck. Most installers with fuel system experience can complete this without specialty tools, though a mounting hole must be cut into the body panel.
Does this kit work with older Radium FCST models?No. This kit is designed for the current FCST-X surge tank. Earlier FCST (non-X) tanks use different remote mount fill neck part numbers and are not directly interchangeable with this kit.
Install Instructions
- Determine the desired remote fill location on the vehicle body panel and confirm clearance behind the panel for the filler housing.
- Cut the required mounting hole per the dry break filler's flange dimensions.
- Mount the remote dry break filler to the body panel using the included hardware and gasket.
- Route the 1.5 inch filler hose from the remote filler to the angled fill neck elbow on the FCST-X.
- Connect the high flow vent hose from the FCST-X vent port to the remote filler's vent connection, following proper routing to prevent fuel loss.
- Secure all hose connections with the provided clamps and verify no kinks or low points that could trap fuel or restrict air flow.
- Test fit the dry break dump can to confirm proper engagement and seal before first use.
Filler Necks
Filler necks are the structural tubes that connect a vehicle's fuel cap opening in the body to the fuel tank below, serving as the primary refueling pathway while incorporating anti-rollover valves, vent hoses, and vapor recovery system connections required by modern emissions standards. A damaged or corroded filler neck causes fuel odor inside and outside the vehicle, difficulty seating the fuel cap, fuel cap warning lights on OBD-equipped cars, and potential fuel leak hazards that demand prompt attention. Steel and stainless steel replacement filler necks are available for most domestic and import vehicles, with exact-fit options that replicate the OEM routing and attachment bracket positions for straightforward bolt-on installation. This collection covers replacement filler neck assemblies for passenger cars, trucks, and SUVs across major makes and model years.Popular UpgradesDirect-fit replacement filler neck assemblies for popular rust-prone applications including Ford F-150, C...
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Radium Engineering Fuel System Parts
Shop Radium Engineering fuel system parts at Black Ops Auto Works for high-performance street builds, track cars, drag racing applications, forced induction setups, engine swaps, and custom fuel system upgrades. This collection includes Radium fuel rails, fuel pressure regulators, fuel surge tanks, fuel hangers, fuel pump systems, fuel pulse dampers, PTFE hose kits, AN fittings, fuel cell parts, dry break fillers, catch cans, PCV systems, plumbing kits, and fuel system accessories. Radium Engineering is trusted by performance enthusiasts, fabricators, tuners, and motorsport builders for precision fuel delivery, clean installation, and reliable performance under demanding conditions. Whether you are upgrading fuel flow, adding a surge tank, converting to top-feed fuel rails, building a return-style fuel system, or improving crankcase ventilation with a catch can setup, Black Ops Auto Works carries Radium Engineering parts for serious performance builds. Shop Radium Engineering Parts ...
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