AutoMeter Fuel Rail Pressure Gauge

2003–2007 Dodge Ram 2500 / Dodge Ram 3500

6186

Overview:

The AutoMeter Cobalt Fuel Rail Pressure Gauge is engineered specifically for the demanding needs of modern direct-injected diesel engines found in the 2003–2007 Dodge Ram 2500 and Ram 3500 models. Accurate fuel rail pressure monitoring is critical to maintaining engine longevity and optimizing power output in these high-pressure diesel applications. This gauge delivers precise, real-time readings with professional-grade reliability, ensuring you stay informed about your engine’s fuel system performance under all conditions.

Designed for diesel enthusiasts and professionals alike, this gauge integrates seamlessly with your factory sensor, providing a clean and efficient installation without the need for additional sensors or modifications. Whether you’re tuning for maximum performance or monitoring for preventative maintenance, the AutoMeter Cobalt Fuel Rail Pressure Gauge offers the accuracy and durability you need.

Key Features:

Built with AutoMeter’s advanced digital stepper motor technology, this gauge offers unmatched precision and smooth pointer movement. Key features include:

• Direct connection to the factory fuel rail pressure sensor via included wiring harness for easy installation
• Compatibility with 12 and 16-volt electrical systems, suitable for nearly all street and race vehicles
• Race-proven digital stepper motor drive for superior accuracy and professional-grade reliability
• Modern blue LED through-the-dial lighting for clear nighttime visibility without distracting glare
• Self-calibration sequence on power-up to maintain consistent and accurate readings
• Gauge kit includes all necessary mounting hardware and detailed installation instructions
• Designed to keep hazardous fluids outside the vehicle while providing precise electronic measurement

Construction & Design:

The AutoMeter Cobalt Fuel Rail Pressure Gauge features a robust design built to withstand the harsh environment of diesel engine bays. The gauge housing is crafted from durable materials that resist vibration and temperature extremes, ensuring long-lasting performance. The smooth pointer movement is driven by a digital stepper motor, which provides precise needle positioning and eliminates the erratic behavior common in traditional gauges.

The blue LED lighting is integrated through the dial face, offering excellent visibility without compromising the gauge’s classic appearance. The wiring harness is engineered for a secure and reliable connection to the factory sensor wiring, minimizing installation complexity and potential electrical issues.

Installation & Fitment:

Installation is straightforward thanks to the included wiring harness that connects directly to the original equipment fuel rail pressure sensor wiring. This eliminates the need for aftermarket sensors or complex modifications. The gauge mounts easily in standard 2-1/16 inch gauge pods or dash openings, making it a clean and professional upgrade for your 2003–2007 Dodge Ram 2500 or Ram 3500.

Detailed instructions guide you through the installation process, ensuring a hassle-free setup whether you are a seasoned mechanic or a dedicated enthusiast.

What's Included:

• AutoMeter Cobalt Fuel Rail Pressure Gauge
• Wiring harness for direct factory sensor connection
• Mounting hardware for secure installation
• Detailed installation instructions

Ideal For:

This gauge is ideal for diesel truck owners, performance tuners, and fleet operators who demand precise fuel rail pressure monitoring to protect their investment and maximize engine performance. It is especially suited for those running modified or high-output diesel engines in Dodge Ram 2500 and 3500 trucks from 2003 to 2007, where maintaining optimal fuel pressure is critical for reliability and power.

AutoMeter is a cornerstone brand in performance instrumentation, offering gauges and data acquisition solutions for street, drag, and motorsports applications. From boost and AFR to oil pressure, temperature, and complete logging systems, AutoMeter helps enthusiasts monitor critical engine vitals and make smarter tuning and reliability decisions under hard use.