25171249
Air Pressure Gauge
Mack

An air pressure gauge provides a direct reading of the compressed air pressure in the truck's air brake system and related circuits. Accurate, easily readable gauges are essential for safe operation, as under- or over-pressurized lines can compromise braking performance and system diagnostics. This gauge is built for heavy-duty use with a rugged housing, clear dial, and protective shroud to resist vibration. When mounted near the air reservoir or control valve, it allows quick visual checks during pre-trip inspections, enabling drivers to identify pressure loss, leaks, or a failing compressor before they impact braking. Calibration stability, temperature resistance, and compatibility with standard fittings are important. Regular inspection of the gauge face, connection threads, and mounting hardware helps prevent leaks or inaccurate readings. For maintenance, replace damaged or corroded gauges promptly and verify pressure transducers or sensor circuits in the brake system are communicating correctly. Quick, reliable readings minimize downtime and support fleet safety. Source One Parts Center offers dependable air pressure gauges.