1/2" NPT Temp Sender/Temperature Sensor For MerCruiser 97258A1, 171960, 18-5898

1/2" NPT Temp Sender/Temperature Sensor for MerCruiser

This temperature sender/sensor monitors engine coolant temperature and triggers gauge or warning systems, compatible with MerCruiser OEM cross-reference numbers 97258A1, 171960, and 18-5898.

Overview

This 1/2" NPT temperature sender/sensor is designed to accurately measure engine coolant temperature for MerCruiser marine engines. It provides reliable data to the temperature gauge or ECU, helping prevent overheating and engine damage. Built for direct replacement in MerCruiser cooling systems.

Built For Performance

• 1/2" NPT thread for standard port installation
• Precision thermistor element for accurate temperature readings
• Corrosion-resistant brass or stainless steel construction
• Direct plug-and-play replacement for OEM part numbers 97258A1, 171960, 18-5898
• Sealed against moisture and vibration for marine environments

On-The-Job Use

• Monitors coolant temperature on inboard and sterndrive MerCruiser engines
• Triggers dash gauge to allow operator to monitor engine health
• Helps prevent overheating by providing early warning signals
• Used in routine maintenance and sensor replacement on older and newer MerCruiser models

Specs At A Glance

Good To Know

Q: Will this sensor work on my MerCruiser 350 Mag? A: This sensor is designed for MerCruiser engines using 1/2" NPT ports and the specified OEM numbers; check your engine's sensor location and compare with the listed cross-references to confirm compatibility.

Q: Does this sender require any modification to install? A: No modifications are needed. Simply remove the old sender and thread this one into the same port. Ensure you use thread sealant appropriate for coolant systems.

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