Faria Chesapeake Black 4" Tachometer - 4000 RPM (Diesel)

The Faria Chesapeake Black 4" Tachometer – 4000 RPM (Diesel) is a precision engine monitoring instrument engineered for diesel-powered marine and industrial applications requiring accurate real-time RPM feedback. Built by Faria Beede Instruments, a recognized manufacturer of quality marine gauges, this tachometer delivers dependable performance in demanding operating environments where engine diagnostics are critical to safe and efficient operation.

The 4-inch dial features a perimeter-lighted black face with contrasting blue and white graphics for clear visibility in low-light conditions. A polished stainless steel bezel, contoured white pointer, and domed glass lens complete a gauge designed to withstand marine corrosion and UV exposure. The 4000 RPM diesel rating matches the operating range of mid-range displacement diesel engines, making it suitable for work boats, offshore utility vessels, and stationary diesel power systems. Electronic operation counts ignition, alternator, or magnetic pickup signals, connecting to +12VDC power, ground, and the appropriate engine signal source—typical of professional-grade marine instrumentation.

This gauge is intended for operators and technicians who require continuous, accurate RPM monitoring to optimize fuel efficiency, protect against over-revving, and detect engine anomalies during extended running hours. Diesel-powered platforms—whether commercial fishing vessels, military support craft, or industrial gensets—depend on reliable tachometer feedback to maintain operational integrity. The Chesapeake's mechanical takeoff and variable ratio alternator compatibility ensures broad integration with existing diesel engine systems.

Faria Beede instruments hold standing reputation among marine professionals for consistent performance across saltwater and freshwater environments. The Chesapeake line balances functional accuracy with durable construction, making it a practical choice for applications where gauge failure risks operational downtime or safety compromise.