3-3/8in A/B Quad Gauge

The 3-3/8in A/B Quad Gauge by AutoMeter is a professional-grade instrument cluster designed for serious automotive enthusiasts and performance engine builders who demand real-time monitoring of critical drivetrain parameters. This compact quad gauge consolidates four essential readings into one integrated display, eliminating the need for multiple individual gauges that clutter your dashboard or custom engine bay. Whether you're tuning a high-performance engine, building a custom hot rod, or monitoring a turbocharged or supercharged application, this gauge delivers the precision feedback required for safe and reliable operation.

The 3-3/8in A/B Quad Gauge combines AutoMeter's proven mechanical and electronic gauge technology into a space-efficient 6.2 x 5.2 x 6.3 inch package weighing just 1.75 lbs, making installation straightforward in tight engine compartments or dashboard applications. Each of the four gauge faces provides independent full-scale needle response and calibration, allowing you to monitor voltage, oil pressure, water temperature, and fuel pressure simultaneously—the critical metrics that separate a well-tuned engine from one heading toward catastrophic failure. The robust construction withstands vibration, heat, and the electrical demands of modern and classic vehicles alike, while the traditional analog needle display provides immediate visual reference without the lag or complexity of digital interfaces.

Mechanics and engine builders favor the 3-3/8in A/B Quad Gauge for street rods, race car builds, engine swaps, and custom fabrication projects where OEM gauge clusters are unavailable or incompatible with modifications. Installation requires basic wiring skills—each gauge port connects to its respective sensor, and the compact faceplate mounts cleanly into custom dash panels, center consoles, or pillar pods. This quad gauge is ideal for any platform upgrade involving carburetor conversions, fuel injection retrofits, turbocharger or supercharger installations, or engine swaps where monitoring multiple parameters simultaneously is non-negotiable for engine longevity and performance reliability.