PRODUCT NOTES
This is a (Premium Plus) Piston Ring Set for Cummins 4B3.9, 6B5.9, ISB6.7, NH855, NT855, and QSB5.9 engines. This high quality aftermarket replacement part is guaranteed to meet OEM specifications and is shipped with a 12-month warranty.
Call us at 888.687.0539 if you have any questions about this item.
As always, your satisfaction is guaranteed!