Mercury Verado Water Pressure Sensor

The Mercury Marine 881879T26 Water Pressure Sensor is a genuine Mercury OEM engine monitoring component designed for selected Verado and FourStroke outboard engines. The sensor continuously monitors cooling system water pressure and transmits data to the engine control module and SmartCraft network, allowing operators to monitor engine cooling performance in real time.

A properly functioning water pressure sensor is critical for engine protection. The sensor helps the engine management system detect cooling system abnormalities and provides water pressure information to SmartCraft gauges, VesselView displays and compatible monitoring systems. Low water pressure warnings can help identify blocked intakes, cooling system faults or water pump issues before engine damage occurs.

The 881879T26 sensor is commonly fitted to Mercury Verado 4-cylinder and 6-cylinder outboards ranging from 135HP to 400HP. It supersedes earlier Mercury part numbers 881879A19 and 881879A20, making it the current OEM replacement for many Verado applications.

Manufactured to Mercury Marine specifications, the sensor features marine-grade construction for long-term durability in harsh saltwater and freshwater environments. Genuine Mercury components ensure accurate readings, proper SmartCraft integration and dependable engine protection.