Water pump illustration – not the actual part
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Water pump illustration – not the actual partDiesel Parts Direct logo

Aftermarket parts may appear slightly different, including the packaging.

CumminsISB / QSBFresh Water Pumps

DS-3800984 Water Pump For Cummins Diesel Engines

(Heavy Duty) 4B / 6B / ISB / QSB

OEM #: 3800984SKU: DS3800984

In Stock

$157.72

Taxes and Shipping are calculated at checkout

Hassle Free Return

This is a Heavy Duty Water Pump for Cummins 4B, 6B, ISB and QSB engines.

SKU DS3800984
OEM Number 3800984
Part Type Water Pumps, Fresh
OEM Brand CUMMINS
  • DS-4891252

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.

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