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Old 07-02-2017, 09:27 PM   #12
CDreamer
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City: Houston
Join Date: May 2017
Posts: 333
PTO = Power Take-Off (for example, to connect a smaller drive shaft on that end, to power something else with the same engine, such as a pump. More common to use the PTO on a farm tractor or maybe a fire truck, etc. but I'm sure that engine was designed to fit many applications besides marine propulsion.
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