Mercury – SC1000 Tachometer 4000 RPM | SmartCraft Analog Gauge | White Face | 85 mm | 79-8M0135625

Overview

The Mercury SC1000 4000 RPM Tachometer (79-8M0135625) combines SmartCraft precision with classic analog styling. It fits a standard 85 mm (3-3/8 in.) dash opening and features a clean white face, black numerals, and a glass lens for sharp visibility in any light. This tachometer gives you smooth, accurate engine RPM readings while integrating SmartCraft functions like SmartTow and other advanced engine data — all depending on your motor and sensors.

Key Features

• 4000 RPM Analog Tachometer – Provides smooth, real-time SmartCraft RPM readings.
• White Face & Glass Lens – Crisp, easy-to-read display with a clean, OEM finish.
• 85 mm (3-3/8 in.) Mounting Size – Fits standard gauge openings for quick install or replacement.
• SmartTow Integration – Supports RPM- and speed-based SmartTow for towing and performance setups.
• SmartCraft Compatible – Connects directly to Mercury’s SmartCraft network for accurate data.
• Version 9.0+ Support – Adds Active Trim, Active Exhaust, and Oil Level Status (on compatible engines).
• Durable Marine Build – UV-stable, corrosion-resistant materials built to handle the elements.

Compatibility

• Fits: Mercury SmartCraft-equipped boats using SC1000-series gauges

Performance & Practical Benefits

This SC1000 tachometer delivers accurate RPM readings at a glance and keeps your dash looking clean and consistent. The white face matches other SC1000 gauges perfectly, while SmartTow integration helps you manage launches and towing performance with precision. With v9.0 or newer firmware, you also gain expanded feedback from your SmartCraft system, including Active Trim and oil-level monitoring.

Why Buy OEM

Mercury gauges are designed for marine use — tested for vibration, heat, and salt exposure to ensure long life. With OEM gear, you get the same reliability and fit found on factory installations. Every connection, circuit, and seal is engineered for accuracy and durability, keeping your boat’s systems performing like new.

FAQ

Q1: What’s the max RPM reading?
Up to 4000 RPM.

Q2: What size hole does it fit?
Standard 85 mm (3-3/8 in.) dash opening.

Q3: Does it include SmartTow features?
Yes — supports both RPM- and speed-based SmartTow modes.

Q4: What additional features come with version 9.0 and newer?
Active Trim, Active Exhaust, and Oil Level Status (when supported by your engine).

Q5: Is it a genuine Mercury part?
Yes — this is a genuine Mercury Marine SC1000 tachometer, built to OEM specs.