278000194 Temperature Sensor for Sea-Doo Speedster 720 1996-1997

Temperature Sensor for Sea-Doo Speedster 720

This temperature sensor for Sea-Doo Speedster 720 boats monitors engine coolant temperature and feeds the signal to your gauge or warning system so the engine stays within its safe operating range, and it matches OEM part number 278000194.

Overview

This temperature sensor for Sea-Doo Speedster 720 models replaces the original sending unit that tracks coolant temperature and reports it to the dash gauge or warning circuit. It suits owners and shops that need a reliable, correctly rated sender rather than a tired original. Install a fresh temperature sensor for Sea-Doo Speedster 720 boats and get trustworthy readings back.

Built For Performance

• Direct replacement for OEM part number 278000194
• Threaded body sized to seal in the factory sensor port
• Resistance curve matched to the original gauge and alert system
• Heat resistant housing built for closed loop marine cooling systems
• Plug in connection that matches the factory wiring harness

Fits These Machines

• for Sea-Doo Speedster 720, 1996
• for Sea-Doo Speedster 720, 1997

On-The-Job Use

• Replacing a failed sender that reads cold or pegs hot on the gauge
• Restoring accurate readings after an engine rebuild or flush
• Chasing down false overheat warnings on twin engine boats
• Routine cooling system service on 720 powered Speedster models

Specs At A Glance

Good To Know

Q: Does this sensor work with the factory dash gauge? A: Yes, it is built to match the original sender's resistance range so the factory gauge and warning system behave normally. Verify your model year and connector style before ordering.

Q: Is thread sealant needed on install? A: A marine grade sealant on the threads helps prevent coolant seepage at the sensor port. Let the engine cool completely before removing the old unit.

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