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73 Posts
Discussion Starter #1
Morning ya’ll
I bought the Felpro Rear Main Crank Seal kit from Autozone to install while I had my transmission out but had second thoughts and wanted as reliable as OEM as possible so I bought the Cummins part just to be sure I had the factory one instead of an Aftermarket seal…

They had the same stamped numbers on each.
On both seals were stamped DFNK, 3933262, USA, S-11968
I assume one of the numbers is a Model? Don’t know what the other would be.

But anyway;
Cummins Part came labeled in Cummins box was $65 with install tool only.
The Felpro part from Autozone with the install tool AND the Gaskets (2 for two different designs?, one had an extra hole) for the Rear Crank Seal Retainer plate was $55.

Just sharing what I found.

JT
 

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Rescue Tower
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10,826 Posts
Appreciate the side by side comparison. Felpro makes good stuff.
 
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