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4089910NX Genuine Cummins Water Pump
This water pump from CUMMINS is designed to deliver reliable performance and durability.
Key Features
- Designed to match or exceed applicable specifications
- Provides the function required for the intended system or assembly
- Built for dependable performance and service life
- Backed by CUMMINS quality and engineering.
Specifications
| Brand | CUMMINS |
| Part Type | Water Pump |
| SKU | 4089910NX |
| OEM Cross Reference | 1677110066, 18-2034, 181879, 182034, 228-2329, 2282329, 3682311, 4089158, 4089158NX, 4089158RX, 4089910, 4089910RX, 4920465, 5473364, 5473364RX, 6089, 7083X, 99323HD, RW4068X, US6344, VMX1009998, WP-2258, WP04034, WP2258 |
| UPC | 700670AT |
| Weight | 40.0 lb |
Brand Information
Brand: CUMMINS
Cummins is a leading global power technology company recognized for engines and related components engineered for performance and reliability.
Installation Notes
- Verify part number, specifications, and application before installation.
- Professional installation is recommended.
General Shipping Policies & Time
The following chart provides estimated shipping times from the start of transit. This table does not include assembling, processing or manufacturing time. You may receive your order sooner or later depending on these factors as well as the ship to location of the order. Generally, our processing time is between 24 to 48 hours, but it varies by product and product line. To check on an exact processing plus shipping time, please feel free to call our customer service department and they can provide that to you over the phone. Once your order has shipped, any address updates will need to be made directly with our customer service department. Charges to reroute any deliveries will be at the customer's expense.
| Shipping Method | Transit Time |
| SMALL PACKAGE SAVER |
3 to 7 business days* This method is only available for products under 10 pounds. The majority of products that qualify for FREE SHIPPING, will ship this method |
| GROUND |
1 to 6 business days* Our house carrier is UPS and the majority of packages will ship this way. Occasionally packages may ship Fedex. |
| SECOND DAY AIR |
2 to 3 business days* For this option please call in and speak to our sales department. |
| NEXT DAY AIR |
1 to 2 business days* For this option please call in and speak to our sales department. |
| CANADA |
1-6 business days* Transit time can vary due to border customs and carrier may use contact number requiring further information. |
| LARGE PACKAGE RATE |
3-5 business days* For residential deliveries the carrier may use contact number to schedule delivery. |
| Will Call |
Customer Pick Up This option is available to all customers, but must be requested over the phone. There is no shipping or handling charges for choosing Will Call. All customers picking up in person regardless of bill to location, will be required to pay North Carolina sales tax unless tax exemption papers are provided. |
*Advanced Truck Parts processes and ships orders Monday through Saturday, excluding major United States Holidays. The majority of our orders will ship North Carolina warehouse.
Freight/Oversize Shipments
Freight/LTL shipping quotes are calculated based on delivery to commercial addresses. This means that the property must be commercially zoned and have official business hours of operations. If you do not have a business address and you have already purchased a Freight or Oversized item then we will contact you with an updated shipping charge that must be paid for delivery. If you have not purchased yet and would like a shipping quote to a non commercial address, we are more than happy to help!
When a Freight shipment arrives do not sign the delivery receipt before you have fully inspected the package and have marked down the exceptions and damages on the receipt if they apply. If a Freight shipment does arrive and is damaged, we can not help you if you did not sign for it as damaged and clearly note it on the delivery receipt.
Upon delivery of the shipment, if you do not have the ability and/or equipment to unload your product the freight carrier may ask if you would like to have them unload the product with a lift gate or other methods. Any additional services requested such as this may incur an additional fee charged to the customer by the freight carrier and Advanced Truck Parts is not responsible for such charges. The decision to accept these charges lies solely with the delivery recipient.
Free Shipping Promotions
All Free Shipping items will ship either USPS or UPS and will have a 3 to 7 day transit time. For any products or promo codes that offer Free Shipping on orders or individual parts, the Free Shipping only applies to the contiguous 48 United States. For all other ship to locations, an accurate shipping quote must be calculated and paid. Free Shipping also does not apply to oversized or freight items unless specifically stated and a commercial zone address is required.
Canada Shipments
Applicable for Ground Shipments Only - Canada Customs requires Canadian recipients to pay applicable duties and taxes on each shipment entering Canada. These charges may include POST, GST, HST, duties and other taxes of goods. A brokerage fee may also be charged to process shipments and present the requisite customs paperwork to Canada Customs on the importer's behalf. In some cases, orders may be sent in multiple shipments and can incur additional brokerage charges imposed by Canada Customs. The customer is responsible for brokerage fees, POST, GST, HST, duties and other taxes of goods that are imposed by shipping companies or Canada Customs. In the event the customer refuses to pay those fees, Advanced Truck Parts may be forced to abandon the product at the Canadian border. In that case, the customer will receive no refund back because the product will be lost. *Note - No additional taxes or duties are due for Freight/LTL shipments
International Shipments
At Advanced Truck Parts we are proud to provide international shipping! We have a very experienced team of people here to help our international customers receive their parts quickly and at very affordable rates!
If you are trying to place an order and our website says that we can not ship to your location please contact us at john@advancedtruckparts.com so that we can give you a custom shipping quote. Once you contact us at john@advancedtruckparts.com we will respond quickly with an accurate shipping quote as long as you provide a full physical address with postal code. In some cases our website may quote and charge you the wrong amount for shipping and if this occurs you will be contacted for additional payment. While we do our best to have our website calculate accurate shipping quotes, in dealing with international shipments this is difficult and sometimes our team has to calculate the correct shipping rate manually.
International customers are responsible for any duties, taxes, custom charges or currency exchange fees that their shipment may incur during transit. In the case of a shipment being refused, all transit charges will be deducted from the customer’s refund.
Damaged Shipments
In the event your product is damaged in transit please contact us at 1-877-795-0656 immediately. All damages must be reported within 24-48 hours of receiving your package. If a shipment arrives at your doorstep and is clearly damaged make sure to take pictures as these will help expedite the return process. All warranty claims and damaged items claims need to be handled through Advanced Truck Parts. Do not contact the manufacturer of the product directly as they will not be able to assist you in receiving a new item. Please do not attempt to install the part as this will void any replacement options or claims.
Refused Shipments
You reserve the right to refuse a shipment should you change your mind and decide to return the product. Please contact us ahead of time if you plan to do this so we can set up the appropriate return information in the system. If a shipment is refused upon delivery, then Advanced Truck Parts will deduct the cost of the return shipping from your refund in addition to the initial shipping charge. If the item is damaged upon arrival or defective then we will take full responsibility for the cost of shipping.
Shipping
We are now shipping internationally! All shipping rates will be calculated, and thus, will vary depending on the shipping location. All shipping rates are calculated based the cost of both the shipping and handling required to send your item.
Once you have placed your order by purchasing an item, it generally takes 1 to 3 business days to process your transaction and get your product on its way to you. The package then spends another 3 to 10 days in transit (or possibly longer in international shipping situations). Thus, you can expect your order to be delivered between 4 to 14 days from when we receive payment for your item.
We cannot ship to PO Boxes!!! Before purchasing our item(s), please make sure that either (1) your Paypal account has a confirmed physical address, or (2) you personally supply us with a sufficient physical address to ship to.
Out of Stock
It is our desire to always have every listed item actively in stock. Occasionally, due to high demand we may be temporarily out of stock on an item. If this happens you will be notified and given the option to either cancel for a full refund or wait for the part to come in (typically 3-14 days).
Contacting Us
We take pride in having the best customer service! If you have any questions about currently listed items, please call us toll-free in the United States at 1-877-795-0656 (8:00 am - 6:30 pm EST)
If you have any comments or questions about listed items, shipping, handling time, parts you would like to see listed or absolutely anything at all, please feel free to email us.
CUMMINS WATER PUMPS
Key Points
The water pump in a Cummins diesel engine is a critical component of the cooling system, responsible for circulating coolant through the engine block, cylinder head, and radiator to maintain proper operating temperature.
In heavy-duty Cummins engines (like the ISX/X15 series), the water pump is typically a gear-driven centrifugal pump mounted on the front timing gear case.
A failing water pump in a Cummins engine can lead to various symptoms of cooling system distress.
One common sign is coolant leakage from the pump.
Purpose
The water pump in a Cummins diesel engine is a critical component of the cooling system, responsible for circulating coolant through the engine block, cylinder head, and radiator to maintain proper operating temperature. In heavy-duty Cummins engines (like the ISX/X15 series), the water pump is typically a gear-driven centrifugal pump mounted on the front timing gear case. It uses an impeller to push coolant through the engine’s water jackets and out to the radiator. By maintaining coolant flow, the water pump prevents hotspots and overheating, which is vital for engine efficiency and longevity – an adequately cooled Cummins can work hard under load without overheating. Cummins has employed some advanced designs: for instance, some high-output engines feature a two-loop cooling system (separate circuits for aftercooler and jacket water) with dual water pumps. The pump also often incorporates a bypass for thermostat warm-up control. In summary, the purpose of the Cummins water pump is to ensure stable engine temperatures whether idling or climbing a grade, which in turn preserves performance, fuel efficiency, and emissions control. A well-functioning pump contributes to consistent cooling, preventing power loss due to excessive heat and guarding against engine damage from overheating.
Common Failure Signs
A failing water pump in a Cummins engine can lead to various symptoms of cooling system distress.
One common sign is coolant leakage from the pump.
Cummins water pumps have a weep hole – if the internal seal starts to fail, you’ll often see a slow coolant drip or streak from the weep hole area as an early warning.
Any visible coolant leak (especially under the front of the engine or behind the pulley) should be investigated.
Another symptom is engine overheating, particularly under heavy load or high ambient temperatures – a worn or eroded impeller may not circulate coolant effectively, causing temperature to climb.
In extreme cases on certain Cummins models, a catastrophic pump failure can cause a sudden massive coolant loss or even mechanical damage (one blog notes it can be as dramatic as parts of the pump “exploding” off the front of the engine in rare failures).
Installation Notes
When replacing a Cummins water pump, proper installation is crucial for reliable cooling. Drain the coolant to a level below the pump housing before removal (Cummins engines often have a coolant drain plug or you can drain from the radiator). Remove the drive belt if it’s a belt-driven pump (as on some medium-duty Cummins like the B/C series) or ensure the engine is barred over to relieve gear tension if it’s gear-driven. Once the old pump is out, clean the mating surfaces on the engine block or gear cover – old gasket material or corrosion must be removed to ensure a leak-free seal. Install a new gasket (or O-ring, depending on model) – Cummins-supplied water pump kits typically include the correct gasket; a thin layer of sealant may be recommended on some paper gaskets, whereas O-ring designs go on clean and dry. If the pump is gear-driven, ensure the gear meshes properly as you seat the pump (line up any timing marks if applicable, though most Cummins water pump gears are not timed except in rare twin-loop systems). Torque the mounting bolts evenly to the specification (commonly in the 18–30 ft·lb range for many pumps) in a cross pattern to avoid distortion. It’s advisable to also inspect or replace the thermostat(s) while the coolant is drained – Cummins engines often have dual thermostats that should be functioning to regulate flow. After installation, refill the cooling system with the correct coolant mixture, using the opportunity to renew coolant if it’s old. Bleed air from the system by opening the heater valves and any bleed ports; some Cummins have a vent plug near the top of the thermostat housing – open this while filling to purge trapped air. Once filled, start the engine and check for leaks around the pump. Let the engine warm up to ensure the thermostat opens and coolant circulates (monitor the temperature gauge). Finally, recheck coolant level and add if needed. With the new water pump properly installed and no leaks, the Cummins engine should maintain stable temperatures under all operating conditions.
Important: Always verify fitment by part number before installation and follow OEM torque specifications.
Important Notice:
This information is provided for reference only.
Installation parameters and repair regulations may vary depending on the vehicle model.
Before installation, always verify the requirements specified by the vehicle manufacturer.
Incorrect installation may result in improper operation or failure of the unit.
About Cummins
Cummins builds diesel and power solutions recognized for strength, reliability, and performance in demanding work cycles.
What it’s known for
- Engine components designed for heavy-duty durability
- Strong support across on-highway and vocational segments
- Parts coverage for maintenance and rebuild needs
- Engineering focused on uptime and productivity
Common applications
Commercial trucks, equipment, and power applications using Cummins diesel engines.
Pro tip: Use engine serial number and CPL when possible—Cummins configurations can differ even within the same model.
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