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Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
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I have a Cummins QSM11715 horse power Diesel engine #

Customer Question

I have a Cummins QSM11715 horse power Diesel engine # ***** manufactured in 2006.I am replacing the starter magnetic switch which superseded the old switch.Do I have to be concerned with polarity when putting the positive and negative wires on the top 3/8 th studs
Submitted: 1 year ago.
Category: Boat
Expert:  Diesel Boat Doc replied 1 year ago.

no concern with polarity on the wires large or small

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