3-3/8in Ultra-Lite Elec. 120MPH Speedometer

The AutoMeter 3-3/8in Ultra-Lite Electronic 120 MPH Speedometer (Model 4487) is a precision analog gauge engineered for vehicles requiring accurate, real-time velocity monitoring in compact instrument panel configurations. This electric speedometer delivers responsive needle action across a 0–120 MPH range, making it suitable for high-performance vehicles, racing applications, and off-road platforms where OEM speedometer replacement or custom installation is required.

The 3-3/8-inch diameter face delivers clean, legible readouts under varying light conditions thanks to its silver-faced dial design. As an electric gauge, this unit accepts input from standard vehicle speed sensors and is programmable—allowing technicians to calibrate the gauge to match specific tire sizes, gear ratios, and transmission setups. This programmability ensures accuracy across different vehicle configurations without requiring mechanical recalibration. The ultra-lite construction minimizes panel weight while maintaining AutoMeter's reputation for gauge durability and needle accuracy, critical factors in performance and custom vehicle builds where every pound counts.

This speedometer serves builders and technicians upgrading vintage vehicles, street rods, race cars, and off-road platforms where factory gauges are absent or incompatible. The programmable feature eliminates guesswork during final calibration, ensuring the needle accurately reflects actual wheel speed regardless of suspension modifications, wheel diameter changes, or drivetrain alterations. The compact 3-3/8-inch diameter fits standard gauge pods and aftermarket instrument clusters without modification, making installation straightforward in custom dashboard configurations.