How to Replace a Thermostat on a MerCruiser 350 Magnum 5.7L | 1990 Baja Islander 188 Step by Step

If your boat is running hot or you’re doing routine maintenance, replacing the thermostat is a must.
In today’s video we’re in the shop working on my brother’s Baja Islander 188 powered by a MerCruiser 350 Magnum 5.7L V8.

We walk through the full step by step process of removing the old thermostat, cleaning surfaces, installing the new one, and buttoning everything back up so this classic boat is ready for the water.

Whether you’re troubleshooting overheating issues or just doing preventative maintenance, this guide will help you tackle the job yourself.

Link to thermostat: https://a.co/d/0j1isL7C

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Видео How to Replace a Thermostat on a MerCruiser 350 Magnum 5.7L | 1990 Baja Islander 188 Step by Step канала Termin Bros Outdoors