Sierra Coolant Temperature Sensor 18-7600, Replaces Mercruiser 47002

The Sierra 18-7600 is a coolant temperature sensor built as a direct replacement for Mercruiser temperature sensors. It threads into the engine cooling passage to monitor coolant temperature and send that reading to the gauge or engine control system, giving the operator an accurate, real-time view of engine operating temperature. Reliable temperature sensing is critical on a marine engine, where overheating can cause serious damage before a problem is visually apparent, so a correctly functioning sensor is one of the simpler but more important components in the cooling and instrumentation system.

This sensor is designed as a direct cross-reference for the OEM part it replaces, so installation follows the same fit, thread, and electrical connection as the original Mercruiser sensor it is replacing. It is cataloged under Mercruiser temperature and oil sender applications, making it a straightforward swap for boat owners and marine technicians performing routine sender replacement or troubleshooting an inaccurate temperature gauge. At 0.12 pounds, it is a compact, lightweight component that is easy to keep on hand as a spare.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7600
• Product Name: Coolant Temperature Sensor
• Category: Mercruiser Temp & Oil Senders
• UPC: 030999977076
• Weight: 0.12 pounds

Fitment

Designed for Mercruiser temperature and oil sender applications.

Replaces (OEM)

• 47002

Frequently Asked Questions

What does the Sierra 18-7600 replace? The Sierra 18-7600 coolant temperature sensor is a direct replacement for Mercruiser part number 47002.

What is the Sierra 18-7600 used for? It is a coolant temperature sensor that monitors engine coolant temperature and sends that reading to the gauge or engine control system on Mercruiser applications.

How much does the 18-7600 sensor weigh? The Sierra 18-7600 weighs 0.12 pounds.

Is the Sierra 18-7600 an OEM or aftermarket part? The 18-7600 is a Sierra-branded replacement sensor cataloged as a cross-reference to Mercruiser OEM part 47002, so it serves as an aftermarket equivalent to the original sender.

What category of sender is the 18-7600? Sierra part 18-7600 is cataloged under Mercruiser temperature and oil senders.

Will the 18-7600 fit any boat engine? The Sierra 18-7600 is cataloged specifically as a Mercruiser temperature sender replacing part number 47002; confirm your existing sensor's part number before ordering.

What is the UPC for the Sierra 18-7600? The UPC for the Sierra 18-7600 coolant temperature sensor is 030999977076.

Why would I need to replace a coolant temperature sensor like the 18-7600? A failing coolant temperature sensor can cause an inaccurate or unresponsive temperature gauge reading, and replacing it with the Sierra 18-7600 restores accurate engine temperature monitoring.

Does the Sierra 18-7600 include mounting hardware? The Sierra 18-7600 is supplied as the sensor itself; no additional components are listed with it.

How do I know if my sensor matches the 18-7600? Check your existing sender for the Mercruiser part number 47002, which is the number the Sierra 18-7600 is cataloged to replace.