In-Line Fuel Press Gauge

The In-Line Fuel Press Gauge by Mr. Gasket is a mechanical fuel pressure monitoring instrument designed for automotive enthusiasts, mechanics, and performance builders who need real-time fuel system diagnostics. This analog gauge provides critical visibility into fuel delivery pressure, helping identify carburetor tuning issues, fuel pump performance degradation, or regulator problems before they compromise engine operation. Whether you're troubleshooting a carbureted engine, tuning a classic hot rod, or maintaining fleet vehicles, accurate fuel pressure data is essential to reliable performance.

This full-sweep mechanical gauge measures 0–15 psi and features a 1-1/2 inch white-faced dial with clear, easy-to-read markings visible in engine compartments and workshop settings. The instrument connects via a 1/8 inch NPT port using the included adapter fitting, allowing flexible installation directly into fuel lines or filter housings without permanent modifications. The analog needle response is immediate and unaffected by electrical interference, making it reliable in environments where digital gauges might falter. Built to Mr. Gasket standards, the gauge withstands vibration, temperature fluctuations, and the corrosive fuel environment.

This tool is ideal for carburetor-equipped vehicles, classic car restoration, street rods, and any application requiring fuel pressure verification without computer diagnostics. The 0–15 psi range matches most naturally aspirated carbureted and low-boost fuel systems. Installation is straightforward—the adapter fitting allows inline placement between fuel pump and carburetor, or mounting at the filter inlet, with no modifications to existing fuel lines required. For anyone serious about engine performance, troubleshooting, or maintenance, the In-Line Fuel Press Gauge delivers the diagnostic accuracy needed to keep fuel delivery running clean and efficient.