Mercury Thermostat Kit, 140°F (Early MerCruiser V8 & High Performance) 807252T3

Mercury Thermostat Kit, 140°F (Early MerCruiser V8 & High Performance) 807252T3 is a genuine Mercury/Quicksilver OEM replacement kit designed for compatible MerCruiser sterndrive and inboard engines with standard cooling systems. A properly functioning thermostat helps maintain the correct engine operating temperature for dependable performance and efficient cooling.

Compatible with the following:

• MerCruiser V8 engines made by Ford & GM (1982 and older, w/ standard cooling)
• MerCruiser high-performance engines made by Ford & GM (1996 and older)

This complete thermostat kit includes the replacement thermostat along with the gaskets needed for installation. Replacing the sealing components during service helps ensure a proper seal and reliable cooling system operation.

Kit Includes:

• 140°F thermostat
• Flat gasket
• Rubber gasket
• Additional installation gaskets

Always install the thermostat temperature specified in your owner's or service manual. Using genuine Mercury replacement parts helps ensure proper fit, dependable operation, and long-term cooling system reliability.

Quicksilver is Mercury Marine's official parts and accessories brand, offering the same OEM quality and fit as Mercury-branded components.

To Confirm Compatibility: Contact our team with your engine serial number at (727) 596-5929 before ordering.