120 Mph Speedometer

The 120 Mph Speedometer by AUTOMETER is an essential instrument for any serious automotive enthusiast or mechanic upgrading a classic car, hot rod, or high-performance vehicle. This mechanical speedometer replaces worn or inaccurate factory gauges and provides accurate real-time velocity monitoring at a glance. Whether you're restoring a vintage muscle car, building a custom street rod, or upgrading a modern performance platform, a quality speedometer is fundamental to safe operation and precise speed verification during tuning sessions and road testing.

AUTOMETER's 120 Mph Speedometer features precision mechanical movement designed for reliability and long-term accuracy in demanding automotive environments. The gauge reads from 0 to 120 mph, making it ideal for street and strip applications where velocity limits are well-defined. Its robust construction withstands vibration, temperature fluctuations, and the electrical demands of modern engine compartments. The compact 6.2 x 5.4 x 6.3 inch footprint integrates seamlessly into custom dash layouts, while the 1.45 lbs weight makes installation straightforward without adding unnecessary mass to the vehicle's dashboard assembly.

Mechanics and fabricators commonly specify AUTOMETER speedometers for engine builds, restorations, and custom vehicle projects where OEM gauges are unavailable or unreliable. Installation requires a compatible speedometer cable routed from the transmission output or wheel speed sensor, depending on your drivetrain configuration. This speedometer works with both cable-driven and electronic speed inputs, making it adaptable to carbureted engines, fuel-injected platforms, and modern EFI conversions. When paired with quality gauges and proper installation technique, this instrument provides the feedback necessary for precise speed control and engine tuning validation.