AutoMeter Cobalt 52mm 0-30,000 PSI F/S Electronic Diesel Fuel Rail Pressure Gauge

2011–2025 Dodge Ram 5.9L Cummins Diesel

Part #: 6186

Overview

The AutoMeter Cobalt 52mm Fuel Rail Pressure Gauge is an essential instrument for diesel enthusiasts and professional mechanics who demand precise monitoring of their engine's fuel system. Designed specifically for modern direct-injected diesel applications, this gauge provides real-time, highly accurate readings of your fuel rail pressure, ensuring optimal engine performance and longevity. Whether you're tuning your vehicle for maximum power, monitoring for potential issues, or simply maintaining peak efficiency, this gauge offers the reliability and clarity you need.

Ideal for both street and race applications, the AutoMeter Cobalt series combines advanced digital technology with a sleek, professional appearance. Its robust construction and precise measurement capabilities make it a perfect addition for those who want to keep a close eye on critical engine parameters, especially in high-pressure diesel systems like the Cummins 5.9L engine.

Key Features

The AutoMeter Cobalt 52mm Pressure Gauge is packed with features designed to deliver accurate, dependable readings and ease of use:

• High-precision digital stepper motor drive ensures smooth, accurate pointer movement for precise pressure readings.
• Measures a wide range of 0–30,000 PSI, accommodating the high pressures typical in modern diesel fuel systems.
• Connects directly to your factory sensor using the included wiring harness, simplifying installation and ensuring compatibility with your vehicle's existing electrical system.
• Compatible with 12V and 16V electrical systems, making it suitable for a wide variety of street and race vehicles.
• Built with durable materials and a sleek cobalt blue dial face that resists fading and adds a professional look to your dashboard or pillar pod.
• Features a bright, easy-to-read digital display with a clear pointer for quick monitoring at a glance.
• Designed for professional-grade reliability, providing consistent performance under demanding conditions.
• Includes all necessary wiring and mounting hardware for straightforward installation.
• Ideal for monitoring fuel rail pressure in Cummins 5.9L engines, ensuring your diesel runs at peak efficiency and preventing potential damage caused by over- or under-pressurization.

Construction & Design

The AutoMeter Cobalt Pressure Gauge features a rugged, high-quality construction designed to withstand the harsh conditions of high-performance diesel engines. Its 52mm (2-1/16 inch) diameter housing is crafted from durable materials that resist vibration, heat, and corrosion. The cobalt blue dial face not only provides a striking appearance but also enhances visibility in various lighting conditions. The advanced digital stepper motor drive ensures smooth pointer movement and accurate readings, making it easier to monitor your engine's health during spirited driving or racing.

The gauge's wiring harness connects seamlessly to your vehicle's factory sensor, eliminating the need for complex modifications. Its compatibility with 12V and 16V electrical systems ensures reliable operation across a wide range of setups. The included mounting hardware allows for flexible installation options, whether on the dashboard, A-pillar, or other locations suitable for quick visibility.

Performance & Sound

While primarily focused on precise measurement, the AutoMeter Cobalt Fuel Rail Pressure Gauge provides a clean, professional look that complements high-performance diesel builds. Its digital display offers quick, accurate readings, helping you make informed decisions during tuning or troubleshooting. The gauge's design minimizes noise and vibration, ensuring stable operation even under demanding conditions.

Installation & Fitment

Installing the AutoMeter Cobalt 52mm Fuel Rail Pressure Gauge is straightforward for those familiar with automotive electrical systems. The gauge connects directly to your factory sensor via the included wiring harness, requiring no additional adapters or modifications. No cutting, drilling, or tuning is necessary, making it a plug-and-play upgrade for your diesel engine. Proper mounting ensures easy visibility and access during operation, with options for dashboard or pillar mounting depending on your preference.

• Connects directly to factory sensor using included wiring harness
• No cutting, drilling, or tuning required
• Suitable for installation on dashboards, A-pillars, or other accessible locations

What's Included

• AutoMeter Cobalt 52mm Fuel Rail Pressure Gauge
• Wiring harness for direct connection to factory sensor
• Mounting hardware and brackets
• Installation instructions

Ideal For

• Diesel enthusiasts seeking precise fuel system monitoring
• Performance tuners and racers aiming for optimal engine operation
• Mechanics and DIYers performing high-pressure diesel upgrades
• Anyone looking to prevent fuel system issues and extend engine life

Emissions Note

This product is designed for off-road or racing use only and may not be legal for use on public roads in all jurisdictions. Please check local regulations before installation.