Piston ring set illustration – not the actual part
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Piston ring set illustration – not the actual partDiesel Parts Direct logo

Aftermarket parts may appear slightly different, including the packaging.

Cummins4BT / 6BTPiston Ring Sets

DS-3804930 Piston Ring Set For Cummins Diesel Engines

(Standard) 4B3.9 / 6B5.9 / ISB / ISD

OEM #: 3804930SKU: DS3804930

Ships in 1-2 days

$31.91

Taxes and Shipping are calculated at checkout

Special Order Item - not eligible for return

This is a Piston Ring Set (Standard) for the following engine models:

  • 4B3.9
  • 6B5.9
  • ISB
  • ISD
  • ISF
  • ISG
  • QSB
SKU DS3804930
OEM Number 3804930
Part Type Piston Ring Sets
OEM Brand CUMMINS

Aftermarket warranty

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  • Orders are processed the same or next business day
  • Expedited shipping options available at Checkout
  • If same-day shipping is critical, please call to confirm availability

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Call any of our friendly Parts Dept. Specialists with your engine serial number, and we can quickly verify whether this part is the correct part for your engine — no guesswork.

Phone: 888.687.0539

Don't know how to find your engine serial number? Go to our Engine Help Center for assistance.