View 8 Photos View 0 Videos Cummins 400 Big Cam Piston and Connecting Rod, Part # P-6163 $100 USD Good used piston and connecting rod off of a Cummins 400 Big Cam engine. two rings on piston as shown in photo .Casting number is 121579. Part has been inspected and looks good. Please see... ConditionUsedPart NumberP-6163Stock NumberP-6163 MLS Number9877822CategoryPistons & Rod Parts Last Updated3/21/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info