278000194 Temperature Sensor for Sea-Doo SP 720 1997

Temperature Sensor for Sea-Doo

This temperature sensor (OEM cross-reference 278000194) reads coolant temperature and passes that signal to your SP 720's gauge or warning circuit so hot-running conditions get noticed.

Overview

This temperature sensor is a replacement part for the Sea-Doo SP 720 from 1997. It measures coolant temperature and feeds that reading to the gauge or warning system, helping you keep an eye on engine heat. It suits owners handling maintenance or replacing a sender that has stopped reading correctly.

Built For Performance

• OEM cross-reference 278000194 for easy matching
• Threaded body designed to fit the factory sensor port
• Sealed build stands up to moisture in a marine engine bay
• Single-wire hookup keeps installation simple
• Resists vibration and repeated heat cycles

Fits These Machines

• for Sea-Doo SP 720, 1997

On-The-Job Use

• Scheduled cooling system maintenance
• Replacing a sender that reads high, low, or not at all
• Getting the dash temperature gauge working again
• Pre-season service before hitting the water

Specs At A Glance

Good To Know

Q: What are the signs of a bad temperature sensor? A: A gauge that never moves, jumps around, or triggers a warning while the engine runs cool typically means the sender has failed. Replacing it isolates the sensor from the rest of the gauge circuit.

Q: Can I install this without draining the whole cooling system? A: Some coolant loss is normal when removing the old sensor, so top off afterward and bleed the system per your service manual. Check for leaks once the engine warms up.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.