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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

Cummins Marine QSB 5.9 Coolant Temperature Switch Locations
Cummins Marine QSB 5.9 Coolant Temperature Switch Locations
Cummins Marine QSB 5.9 Coolant Temperature Switch Locations
Cummins Marine QSB 5.9 Coolant Temperature Switch Locations
Cummins Marine QSB 5.9 Coolant Temperature Switch Locations
Cummins Marine QSB 5.9 Coolant Temperature Switch Locations
Cummins Marine QSB 5.9 Coolant Temperature Switch Locations
Cummins Marine QSB 5.9 Coolant Temperature Switch Locations