RADIUM Engineering Fuel Pressure Gauge

Radium Engineering Fuel Pressure Gauges: Precision Built for Performance Fuel Systems

Radium Engineering has been a trusted name in high-performance fuel system components since 2010. The company's goal has been to design and produce high-quality aftermarket automotive performance products within the crucial fuel and fluid delivery subgenre. While Radium is best known for pioneering fuel surge tanks and EFI regulators, their fuel pressure gauges reflect that same commitment to accuracy, durability, and real-world usability.

The Radium 0-100 PSI Fuel Pressure Gauge

Radium Engineering's flagship fuel pressure gauge (part 20-0029) is engineered to serve street builds and full-on race cars alike. This high-accuracy fuel pressure gauge is suitable for all fueling applications, featuring an acrylic lens with a silicone-filled dial that reads from 0 to 100 PSI (0 to 6.9 BAR) with +/- 2% accuracy. That level of precision matters when tuning for power — even small deviations in fuel pressure can skew air-fuel ratios and cause drivability issues or engine damage.

The silicone fluid prevents the needle from vibrating for easy pressure readings — a critical feature in high-vibration motorsport and track environments where a bouncing needle makes it nearly impossible to get a stable reading. The gauge features a rugged stainless 1-5/8" OD steel case (1-3/4" OD bezel) with a nickel-plated male 1/8" NPT fitting, making it compatible with a wide range of fuel system plumbing configurations.

Radium also offers a variant that includes a 90-degree aluminum adapter — a 0-100 PSI fuel pressure gauge with a 90-degree aluminum adapter — giving builders added flexibility when routing gauge lines in tight engine bays or when a straight-fit NPT connection would create clearance issues.

Why Radium Engineering Stands Out

All Radium products are carefully planned with thorough R&D and designed in-house using the latest computer simulation and modeling techniques. Extensive testing and evaluation ensures the performance of Radium products exceed consumer expectations, which is why top motorsports competitors and enthusiasts worldwide rely on Radium Engineering products.

Radium Engineering sets the benchmark for high-performance automotive fuel systems, designing and manufacturing only the highest quality aftermarket components — from high-output fuel pumps and precision-machined rails to flexible lines, adapters, and filters compatible with gasoline, E85, and other fuels. Their fuel pressure gauge integrates seamlessly into this broader ecosystem, making it a natural companion to Radium's fuel pressure regulators, surge tanks, and fuel rails.

Installation Notes

• Thread sealing: PTFE thread sealant paste should always be used on NPT threads.
• Avoid overpressure: Overpressurizing can permanently misalign the needle calibration — always confirm your system pressure range before installing.
• Silicone bubble: A small internal bubble visible through the acrylic lens is normal and does not affect gauge performance.

Whether you are building a turbocharged street car, a time attack competitor, or a high-horsepower E85 build, Radium Engineering's fuel pressure gauge delivers the clarity and reliability that serious builders demand. Browse all available options in our Fuel Pressure Gauge category, or explore the full lineup on the Radium Engineering brand page.