278000194 Temperature Sensor for Sea-Doo Challenger 800 1996-1997

Temperature Sensor for Sea-Doo Challenger 800

This temperature sensor (OEM cross-reference 278000194) monitors engine coolant temperature on the Sea-Doo Challenger 800, keeping the operator informed before overheating causes damage.

Overview

The temperature sensor for Sea-Doo Challenger 800 is a direct-fit replacement that reads engine coolant temperature and sends that signal to the gauge or warning system. It keeps 1996 and 1997 Challenger 800 boats running safely by alerting the driver to rising heat. Boaters performing routine maintenance or chasing an overheating fault will find this sensor a straightforward swap.

Built For Performance

• Threaded body designed for direct installation in the engine coolant circuit
• OEM cross-reference 278000194 for easy lookup against the original part
• Sealed electrical connector to resist moisture and spray in the engine bay
• Temperature-sensitive element calibrated for marine two-stroke coolant ranges
• Compact body that clears surrounding hoses and engine components

Fits These Machines

• for Sea-Doo Challenger 800 (1996-1997)

On-The-Job Use

• Keeping the temperature gauge accurate during normal cruises
• Replacing a failed sensor after an overheating event
• Restoring warning system function on the dash
• Routine maintenance before the boating season begins

Specs At A Glance

Good To Know

Q: How can I tell if my temperature sensor has failed? A: A gauge that reads cold constantly or spikes erratically often points to a bad sensor, though you should rule out a wiring or thermostat problem first.

Q: Do I need thread sealant when installing this sensor? A: Some sensors ground through the block, so use sealant sparingly or follow the factory procedure to avoid affecting the reading.

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