Sierra 64477FP Lido 3 Inch Electric Tachometer, 7000 RPM, BRP System Check, for Johnson/Evinrude Outboards

The Sierra 64477FP is a 3 inch Lido-style electric tachometer built for Johnson and Evinrude outboard engines, giving boaters a clear, at-a-glance readout of engine RPM at the helm. It reads up to 7000 RPM and is compatible with BRP System Check, allowing it to work alongside the engine's onboard monitoring system on applicable installations. The gauge face is housed in a durable plastic and metal construction designed to hold up to the vibration, moisture, and sun exposure typical of a marine helm station. As an electric tachometer, it wires directly into the engine's electrical system rather than relying on a mechanical cable drive, simplifying installation and reducing points of potential wear.

This tachometer is a direct fit for boat owners replacing a worn, cracked, or non-functioning Lido-style gauge, or upgrading a helm to include RPM monitoring. Its 3 inch housing size matches the standard Lido gauge footprint used across many Johnson/Evinrude dash layouts, so it can be installed in an existing gauge cutout without modification. Backed by Sierra's reputation for engine and drive parts engineered to meet or exceed original equipment performance, the 64477FP is intended to give boaters accurate, reliable RPM readings for the life of the gauge.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 64477FP
• Product Type: Electric Tachometer
• Gauge Style: Lido
• Diameter: 3 inches
• RPM Range: 7000 RPM
• Compatibility: Johnson/Evinrude outboard engines
• System Compatibility: BRP System Check
• Material: Plastic or metal
• Weight: 0.9 pounds
• UPC: 731957433831

Fitment

• Johnson/Evinrude outboard engines

Frequently Asked Questions

What engines does the Sierra 64477FP tachometer fit? The 64477FP is built for Johnson/Evinrude outboard engines and is designed to work with BRP System Check on applicable installations.

What size is this tachometer? This Lido-style gauge has a 3 inch diameter housing, matching the standard Lido gauge cutout used on many Johnson/Evinrude dash panels.

What RPM range does the 64477FP read? It reads up to 7000 RPM, covering the operating range of the outboard engines it is designed for.

Is the Sierra 64477FP an electric or mechanical tachometer? It is an electric tachometer, wiring directly into the engine's electrical system rather than using a mechanical cable drive.

Does this gauge work with BRP System Check? Yes, the 64477FP is compatible with BRP System Check on Johnson/Evinrude engines equipped with that monitoring system.

What is the tachometer housing made of? The 64477FP gauge is constructed of plastic and metal components designed to withstand the marine helm environment.

How much does the 64477FP tachometer weigh? The Sierra 64477FP weighs 0.9 pounds.

Is the Sierra 64477FP a genuine Sierra part? Yes, part number 64477FP is a Sierra branded gauge, manufactured to meet or exceed original equipment performance for Johnson/Evinrude installations.

Will this tachometer fit an existing Lido gauge cutout? Because the 64477FP uses the standard 3 inch Lido housing size, it is designed to install into an existing Lido-style gauge cutout without modification.

What comes in the box with the 64477FP? The 64477FP ships as a single complete tachometer gauge unit, part number 64477FP, ready for installation.

Can I use the 64477FP tachometer on a non-Johnson/Evinrude engine? The 64477FP is designed specifically for Johnson/Evinrude outboard engines and their BRP System Check compatibility.