Camshaft illustration – not the actual part
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Camshaft illustration – not the actual partDiesel Parts Direct logo

Aftermarket parts may appear slightly different, including the packaging.

Cummins4BT / 6BTCamshafts

DS-3979506 Camshaft For Cummins Engines

Compatible With 4B3.9, 6B5.9, 6CTA 8.3L, ISB5.9, and ISB6.7 Engines

OEM #: 3979506SKU: DS3979506

Ships in 1-2 days

$472.97

Taxes and Shipping are calculated at checkout

Special Order Item - not eligible for return

SKU DS3979506
OEM Number 3979506
Part Type Camshafts & Bearings
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.