2-5/8in Mini U/L Diesel Tach

The AutoMeter 2-5/8 inch Mini Ultra-Lite Diesel Tachometer (Model 3788) is a compact, purpose-built RPM gauge engineered for diesel and alternative-fuel vehicles where weight and space are at a premium. This electric analog tachometer is rated to 5,000 RPM and delivers the direct, unfiltered readout diesel operators depend on during load verification, diagnostics, and daily operation. The Ultra-Lite construction keeps rotational mass to a minimum, reducing strain on the vehicle's electrical system while the silver-faced dial maintains visibility across varying light conditions.

The 2-5/8 inch diameter positions this gauge as an ideal secondary or auxiliary instrument for installations where dashboard real estate is limited—marine applications, off-road service vehicles, fleet instrumentation retrofits, and specialty diesel rigs where a primary tachometer already exists. Its pedestal mount design offers flexible dashboard or console placement without requiring OEM gauge pod modification. The electric operation ensures accurate response across the full RPM range, critical for operators monitoring engine load during heavy pulling, hill starts, or sustained idle periods common to diesel work. At 1.65 lbs, the compact footprint and light weight make this an efficient upgrade path for older vehicles or specialized builds.

AutoMeter's Ultra-Lite line serves technicians and operators who need straightforward, durable instrumentation without excess bulk. This tachometer is particularly suited to diesel engine specialists, agricultural equipment operators, marine mechanics, and fleet managers who value transparent RPM indication and long-term reliability in demanding environments.