This video shows you how to tell the difference between a left hand oil pump and a right hand oil pump for Detroit Diesel. This can be done by locating the driving gear shaft on your oil pump. If the driving gear shaft is on the left side, you have a left hand pump, if the driving gear shaft is on the right you have a right hand pump.

Below is a link for a right hand pump:

https://dieselpro.com/detroit-diesel-.

Below is a link for a left hand pump:

https://dieselpro.com/detroit-diesel-.

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