Mercury – Pitot/Speed Sensor Kit | 100 PSI SmartCraft Speed Input | 881879A2

Overview

A steady, accurate water-pressure speed signal makes your SmartCraft display far more reliable at lower and midrange speeds. The Mercury 881879A2 Pitot/Speed Sensor Kit is built for boats that run under 80 mph and need a clean SmartCraft speed input without depending on paddle wheels or GPS. It mounts either on the MerCruiser sterndrive transom bracket or directly on the hull near the engine, giving you flexibility during rigging and a dependable way to feed speed data into the system.

Key Features

• 100 PSI Pressure Range – Designed for pitot-style speed measurement up to 80 mph.
• Flexible Mounting Options – Attaches to MerCruiser sterndrive transom brackets or the boat hull near the engine.
• Complete Installation Kit – Includes all the hardware needed to mount and connect the sensor.
• SmartCraft Speed Input – Provides a clean speed signal for compatible SmartCraft gauges and displays.
• Wide Engine Coverage – Works with all SmartCraft-capable MerCruiser and Mercury Racing products.
• OEM Sensor Design – Built for consistent readings and long-term durability in freshwater or saltwater.

Compatibility

• SmartCraft-compatible MerCruiser engines
• SmartCraft-compatible Mercury Racing engines
• MerCruiser sterndrive transom brackets
• Hull-mount locations near the engine

Performance & Practical Benefits

This kit gives you a dependable way to generate a pitot-based speed signal, especially on setups that don’t rely on GPS or run in conditions where paddle wheels can be unreliable. The sensor responds quickly to pressure changes and gives SmartCraft gauges a stable reading across the usable speed range. Installation is straightforward, and because everything you need is in the kit, you can mount it cleanly without hunting for extra parts.

Why Buy OEM

Speed sensors need precise calibration and rugged construction to survive long-term exposure to water pressure and vibration. Mercury’s OEM design ensures dependable readings, proper SmartCraft communication, and hardware that lasts. Aftermarket sensors often drift, clog easily, or fail mechanically, but the factory kit delivers the consistency SmartCraft expects.

FAQ

Q1: What type of boats benefit from this kit?
Boats running below 80 mph that want a reliable pitot-style speed input for SmartCraft instruments.

Q2: Does this replace a paddle wheel or GPS speed source?
It can. This sensor provides the water-pressure-based speed signal for SmartCraft systems.

Q3: Where should it be mounted?
Either on the MerCruiser sterndrive transom bracket or on the hull close to the engine.

Q4: Is everything needed for the install included?
Yes—the kit comes with the sensor and all required mounting hardware.

Q5: Does it work with Mercury Racing engines as well?
Yes. It is compatible with all SmartCraft-ready Mercury Racing products.