Thermostat Kit for MerCruiser V6 V8 - 4.3 5.0 5.7 7.4 8.2 807252Q4 18-3668

Thermostat Kit for MerCruiser

This thermostat kit for MerCruiser V6 and V8 engines provides precise coolant temperature control for 4.3L, 5.0L, 5.7L, 7.4L, and 8.2L models, with OEM cross-reference numbers 807252Q4 and 18-3668.

Overview

This thermostat kit for MerCruiser V6 and V8 engines is designed to regulate engine operating temperature for optimal performance. It directly replaces OEM part numbers 807252Q4 and 18-3668, ensuring a reliable fit for 4.3L through 8.2L MerCruiser engines. Ideal for boat owners and marine technicians seeking a dependable cooling system component.

Built For Performance

• Precise temperature regulation ensures consistent engine operation
• Corrosion-resistant materials withstand marine environments
• OEM replacement design for straightforward installation
• Rated for high-temperature cooling systems
• Durable construction extends service life

Fits These Machines

• for MerCruiser V6 4.3L
• for MerCruiser V6 5.0L
• for MerCruiser V8 5.7L
• for MerCruiser V8 7.4L
• for MerCruiser V8 8.2L

On-The-Job Use

• Replacement of worn or stuck thermostats in marine engines
• Cooling system maintenance during routine engine service
• Restoring proper engine warm-up and operating temperature
• Ensuring consistent performance in freshwater and saltwater applications

Specs At A Glance

Good To Know

Q: Is this thermostat kit compatible with all MerCruiser V6 and V8 engines? A: It is designed for 4.3L, 5.0L, 5.7L, 7.4L, and 8.2L models, but always verify your specific engine serial number before purchase.

Q: Does this kit include a gasket? A: The kit typically includes the thermostat and necessary seals; check product listing for included components.

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