Cunmins 931a2 harmonic Balancer replacement

Iam off station from home. Harmonic balancer outer shell with the serpentine belt grooves seems to be slipping forward from the crank portion. Shredded my belt.
anyone have a good Cummins , Napa. Orieleys part number for a replacement. ?
are all 6cta Cummins balancers the same ? Thanks in advance. Stopped until I can fix it Andy

Not all are the same. Some have larger OD and belt area OD. There should be a part number dot matrix stamped into yours.

WillWagner said:

Not all are the same. Some have larger OD and belt area OD. There should be a part number dot matrix stamped into yours.

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Thanks Will. Good to know. I’ve been MIA for a few years. Glad to see you are still there and as always. Quick to reply and a good source of info. Again thank you sir. !

Thanks! You can also go to QSOL and make a single engine user profile and get the correct P/N that way.