Mercury – Pitot/Speed Sensor Kit | 200 PSI SmartCraft Speed Input | 881879A3

Overview

High-speed boats need a tougher, higher-pressure sensor to keep SmartCraft speed readings steady, and that’s exactly what this kit delivers. The Mercury 881879A3 Pitot/Speed Sensor Kit is built for vessels running over 80 mph, where a standard pitot sender can’t keep up. It mounts on the MerCruiser sterndrive transom bracket or directly on the hull near the engine, giving you a clean, reliable pressure-based speed signal that SmartCraft instruments can read without hesitation.

Key Features

• 200 PSI Pitot Sensor – Designed for high-speed boats that regularly exceed 80 mph.
• Multiple Mounting Options – Attaches to MerCruiser sterndrive transom brackets or a hull position near the engine.
• Complete Install Kit – Includes the sensor plus all hardware needed for mounting and connection.
• SmartCraft Speed Input – Feeds accurate pressure-based speed data to SmartCraft gauges and displays.
• Wide Compatibility – Works with all SmartCraft-capable MerCruiser and Mercury Racing engines.
• Durable OEM Construction – Built to withstand high pressure, vibration, and continuous water exposure.

Compatibility

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

Performance & Practical Benefits

This sensor is designed for boats that push into the higher speed range, where pressure spikes can easily overwhelm a standard pitot sender. The 200 PSI rating keeps the readings stable, giving you consistent SmartCraft speed data even when the hull is running hard. With all mounting parts included, installation is straightforward, and the sensor’s quick response helps with performance tuning, trim awareness, and overall confidence at speed.

Why Buy OEM

High-speed measurement demands precision, and Mercury’s OEM sensor is calibrated for SmartCraft’s expectations. The housing, diaphragm, and connector layout are all built to hold up under repeated high-pressure runs—something knockoff sensors rarely survive. With the genuine unit, you get consistent readings and long-term reliability, even on boats that see hard offshore use.

FAQ

Q1: Who is this kit meant for?
Boaters whose vessels run above 80 mph and need accurate, high-pressure pitot speed reporting for SmartCraft displays.

Q2: Can it replace GPS or paddle-wheel speed inputs?
Yes. It provides a pressure-based SmartCraft speed signal without needing additional equipment.

Q3: Where should I mount the sensor?
Either on the MerCruiser sterndrive transom bracket or on the hull in a clean-water location near the engine.

Q4: Is everything included for installation?
Yes. The kit includes the sensor and all mounting hardware.

Q5: Does it work with Mercury Racing engines?
Absolutely—this kit is fully compatible with all SmartCraft-ready Racing models.