In-frame overhaul kit illustration – not the actual part
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In-frame overhaul kit illustration – not the actual partDiesel Parts Direct logo

Aftermarket parts may appear slightly different, including the packaging.

Cummins6CTA / ISC / QSCOverhaul Kits

DS-OH4955581 Complete Overhaul Kit For ISC Cummins Diesel Engines

OEM #: OH4955581SKU: DSOH4955581

Ships in 1-2 days

$3,094.89

Taxes and Shipping are calculated at checkout

Special Order Item - not eligible for return

This kit includes the following parts:

  • Upper Engine Gasket Set
  • Lower Engine Gasket Set
  • Cylinder Kits
  • Main Bearings
  • Rod Bearings

Overhaul kits are serial number and CPL specific.

SKU DSOH4955581
OEM Number OH4955581
Part Type Overhaul Kits
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.