AutoMeter - 2-1/16" Fuel Rail Pressure Gauge 0-30K PSI - 4386

Monitoring ultra-high fuel rail pressures is crucial for modern direct-injected diesel and high-performance gasoline engines. This gauge is engineered to handle rail pressures up to 30,000 PSI in a standard 2-1/16″ (52 mm) gauge form-factor. It uses AutoMeter’s advanced digital stepper-motor movement for rapid, smooth, and accurate needle response without sacrificing durability or visibility. Installation is simplified with a wiring harness that connects directly to your factory sensor, and the heavy-duty construction is built to withstand the rigors of high-pressure fuel systems. The face design and illumination blend performance with style: clear markings, high-contrast dial, and premium finish providing both readability and aesthetics.

Key Features

• 0-30,000 PSI measurement range for fuel rail systems

• Digital stepper motor drive for precise read-out and fast response

• 2-1/16″ gauge diameter fits standard aftermarket pods and dashboards

• Connects directly to factory sensor on supported applications (wiring harness included)

• Premium construction to handle extreme pressures and the environment of diesel direct-injection systems

• Designed for performance and monitoring to protect engine and rail systems

Compatibility & Installation Notes

• Ensure your engine’s fuel rail pressure is within the 0-30 K PSI range covered by this gauge.

• The mounting hole size must be 2-1/16″ (≈ 52 mm) to fit properly.

• Use the included wiring harness and confirm compatibility with your vehicle’s sensor and electrical system.

• Given the extreme pressures involved, ensure all connections are rated and installed correctly.

• Because this is a precision gauge for high-stress systems, correct installation is critical for reliability and accuracy.

Warranty & Support

Final Sale Item. CANNOT be RETURNED.