Sinister Diesel Fuel Pressure Gauge – 0–100 PSI

Key Features

• 0–100 PSI Pressure Range – Ideal for accurately checking and adjusting diesel fuel pressure
• Liquid-Filled Gauge – Helps dampen vibration, pulsation, and pressure spikes for more stable readings
• Easy-to-Read Display – Clear pressure markings make fuel system testing and adjustment straightforward
• Protected Internal Components – Liquid-filled construction helps protect the gauge mechanism from vibration, dirt, and moisture
• Diagnostic & Tuning Tool – Ideal for verifying fuel pressure during troubleshooting, maintenance, or fuel system adjustment
• 1-Year Warranty – Backed by Sinister Diesel for quality and reliability

Product Overview

The Sinister Diesel Fuel Pressure Gauge is a simple and accurate way to monitor fuel pressure while diagnosing, testing, or dialing in your diesel fuel system.

Fuel pressure is critical to proper fuel system operation, and guessing isn't good enough. With a 0–100 PSI operating range, this gauge allows you to accurately verify fuel pressure and make adjustments with confidence.

The gauge features a liquid-filled design that helps dampen vibration, pulsation, and pressure spikes that can make traditional dry gauges difficult to read. The liquid also helps protect the internal gauge components from vibration, dirt, and moisture for improved durability and consistent readings.

Whether you're setting fuel pressure after installing an adjustable regulator, diagnosing a fuel delivery problem, or simply verifying that your system is operating within the proper pressure range, the Sinister Diesel Fuel Pressure Gauge gives you a quick and reliable way to know exactly what's happening in your fuel system.

Important Use Notice

This fuel pressure gauge is intended for temporary testing, diagnostic, and tuning purposes only. It is NOT designed to remain permanently installed or to be left installed while driving the vehicle. Remove the gauge after fuel pressure testing or adjustment is complete.

What's Included

(1) Sinister Diesel 0–100 PSI Liquid-Filled Fuel Pressure Gauge

Why Choose Sinister Diesel

Since 2009, Sinister Diesel has been developing diesel performance, maintenance, and diagnostic products designed to help owners get the most from their trucks. Our Fuel Pressure Gauge provides the accuracy and durability needed to properly test and dial in your fuel system.