Thermostat Kit for OMC Sterndrive 2.5L & 3.0L '80-88 160° 982554 3853799 18-3670

Thermostat Kit for OMC

This thermostat kit for OMC Sterndrive engines controls coolant flow in 2.5L and 3.0L models built from 1980 through 1988, matching OEM cross-reference numbers 982554, 3853799, and 18-3670. This thermostat kit opens at 160°F to keep the engine at the correct operating temperature. Designed for OMC Sterndrive 2.5L and 3.0L applications, this thermostat kit supports reliable cooling system service.

Overview

This thermostat kit for OMC Sterndrive engines provides the replacement thermostat needed to maintain proper cooling in 2.5L and 3.0L engines from 1980 to 1988. It matches OEM cross-reference numbers 982554, 3853799, and 18-3670, and is intended for OMC Sterndrive cooling systems. This thermostat kit helps keep the engine operating at its designed temperature during marine use.

Built For Performance

• 160°F thermostat opening temperature for stable engine operation
• Matches OEM cross-reference numbers 982554, 3853799, and 18-3670
• Sized for OMC Sterndrive 2.5L and 3.0L engines
• Application covers 1980 through 1988 OMC Sterndrive models
• Replacement thermostat supports proper coolant flow in marine engines

Fits These Machines

• for OMC Sterndrive 2.5L (1980-1988)
• for OMC Sterndrive 3.0L (1980-1988)

On-The-Job Use

• Replacing a worn thermostat during cooling system service
• Restoring proper engine temperature regulation in OMC Sterndrive boats
• Installing during marine engine cooling system repair
• Servicing inboard/outboard boats powered by OMC 2.5L or 3.0L engines

Specs At A Glance

Good To Know

Q: What temperature does this thermostat kit open at? A: This thermostat kit opens at 160°F, which supports proper engine operating temperature during marine use.

Q: How do I know this fits an OMC Sterndrive? A: This thermostat kit fits OMC Sterndrive 2.5L and 3.0L engines from 1980 through 1988, and it matches OEM cross-reference numbers 982554, 3853799, and 18-3670. Verify the engine serial number before ordering.

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