Fits Cummins 4B, 6B Piston New Other Diesel 3971966, 3926631, 3802561 New Take Out are Cummins 4B and 6B pistons, marked 6631, Cummins part number 3926631. These are new take-out piston and ring sets. These have been installed and removed but never ran.
OEM / Part Numbers
3971966, 3926631, 3802561
Technical Information
New Take Out are Cummins 4B and 6B pistons, marked 6631, Cummins part number 3926631. These are new take-out piston and ring sets. These have been installed and removed but never ran.
RF Part Number
K3802561K
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