Cummins Marine QSB 5.9 Coolant Temperature Switch Locations

The coolant expansion tank on a Cummins QSB 5.9 will typically have (2) plugged 1/4″ NPT ports that are available to install a temp sender/switch. SMX Deluxe Temperature Alarm Switch

Why Freshwater Flushing your Marine Diesel is So Important

WHY FRESH WATER FLUSH – PROTECTING YOUR ENGINES “MARINE AGE” There are about 8,700 hours in a year and when you consider that most recreational boats may be gone from the dock well less than 10% of that time, it … Read More

Updated Troubleshooting for Dry QSM11 Exhaust Manifold Leaks for Marine

Photo Credits: http://www.clubsearay.com/index.php?threads/cummins-dry-exhaust-service-bulletin.96644/  

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