Drive belt illustration – not the actual part
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Drive belt illustration – not the actual partDiesel Parts Direct logo

Aftermarket parts may appear slightly different, including the packaging.

Cummins4BT / 6BTBelts and Tensioners

Cummins 178665 V-Belt

Compatible With NH855, NT495, NT743, NT855, and NTA855 Engines (7 / 8")

Genuine Cummins Part

OEM #: 178665SKU: 178665

Special Order

$147.03

Taxes and Shipping are calculated at checkout

Special Order Item - not eligible for return

SKU 178665
OEM Number 178665
Part Type Belts
OEM Brand CUMMINS

Aftermarket warranty

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Genuine Cummins parts 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.