RADIUM Engineering Accessory Switch
RADIUM Engineering Accessory Switches: Precision Control for High-Performance Fuel Systems
When building or upgrading a high-performance or motorsport fuel system, the small details can make a massive difference. RADIUM Engineering has built its reputation since 2010 on exactly that philosophy — designing and producing aftermarket automotive products where engineering precision meets real-world performance demands. Their accessory switches are a focused but critical part of that ecosystem, providing the kind of reliable, application-specific triggering capability that serious builds require.
The RADIUM Adjustable Pressure Switch (Part #20-0236)
RADIUM Engineering's flagship accessory switch offering is the Adjustable Pressure Switch (20-0236) — a purpose-built solution for anyone running a staged or supplemental fuel pump setup. This Adjustable Pressure Switch offers a solution for triggering staged fuel pump(s) based on boost pressure. Rather than relying on a fixed activation point, the switch features a 3–15 psi adjustable set point to match any application. This tunability makes it equally at home on a mildly boosted street build or an all-out race car where fuel delivery must precisely track boost levels.
The stainless steel body features a 1/8" NPT male port, making it straightforward to plumb into most boost reference or fluid lines. Connector and pins are included (assembly required), so builders get everything needed for a clean, professional installation. RADIUM also notes that this switch may be used to trigger any device, not just a fuel pump, as long as the current demand is less than 0.5 Amp, expanding its utility to other accessory triggering applications throughout the vehicle.
This switch may also be used in other fluid applications (oil, fuel, coolant, etc.), giving builders added flexibility in how they integrate it into complex fluid management systems.
Why RADIUM Engineering Stands Apart
Since 2010, Radium Engineering's goal has been to design and produce the highest quality, best performing aftermarket automotive products. Radium relies on a core team with a passion for innovation, and all Radium products are carefully planned with thorough R&D and designed in-house. Extensive testing and validation ensure the performance of Radium products exceed consumer expectations. That same discipline applies to their accessory switches — a component category where marginal quality can result in missed activation points, pump starvation, or engine damage under high boost conditions.
Radium Engineering is the leader in high performance automotive fuel system products, and their accessory switches are a natural complement to their broader lineup of surge tanks, fuel pump hangers, and EFI pressure regulators. Whether you are building a standalone staged pump strategy or integrating a switch into a complex multi-pump fuel surge tank system, RADIUM's engineering approach ensures the switch is up to the task.
Who Should Consider a RADIUM Accessory Switch?
- Turbocharged or supercharged builds requiring staged fuel pump activation
- Motorsport or time-attack builds with dual-pump fuel surge tank systems
- Builders needing a versatile, low-current trigger switch for fluid or accessory control
- Anyone building an E85 or high-ethanol fuel system needing reliable boost-referenced triggering
Explore the full RADIUM Engineering brand catalog for their complete range of fuel system solutions, or browse all accessory switches to find the right triggering solution for your build.