Skeg Protector Guard – Fits MerCruiser Alpha 1 (Replaces 27021) 450HP 439072 Johnson/Evinrude Outboard 7

439072 Johnson/Evinrude Outboard 7

Like most plastic components exposed to UV light and marine environments

Common signs include engine overheating (stuck closed) or taking too long to reach operating temperature (stuck open)

This replacement Thermostat fits Yamaha 300-350HP 4-Stroke Outboard engines

How do I know if my engine needs a 150°F thermostat

Skeg Protector Guard – Fits MerCruiser Alpha 1 (Replaces 27021) 450HP 439072 Johnson/Evinrude Outboard 7Product Details This Skeg Protector Guard for MerCruiser Alpha 1 (1985 1990) provides robust protection against impact and corrosion for your sterndrive skeg. Designed specifically for MerCruiser Alpha 1 models from 1985 to 1990, it is constructed from high quality stainless steel to withstand harsh marine environments and prevent costly repairs. It serves as a direct replacement for several part numbers, including SupremeMarine 1907, Panther Safe