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Cummins4BT / 6BTCrankshafts & Bearings

DS-4089342 Rear Crankshaft Seal Service Kit For Cummins Engines

Compatible With 6CTA, ISB, and QSB Engines

OEM #: 4089342SKU: DS4089342

Ships in 1-2 days

$42.48

Taxes and Shipping are calculated at checkout

Return with 20% Fee

This is a Rear Crankshaft Seal Service Kit w/Installation Tool for the following Cummins engine models:

  • 4B3.9
  • B4.5
  • B5.9
  • B6.7
  • 6CTA
  • ISB6.7
  • QSB
SKU DS4089342
OEM Number 4089342
Part Type Crankshafts, Bearings & Seals
OEM Brand CUMMINS
  • DS-3934486

Aftermarket warranty

View full warranty details
  • 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.

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