July 29, 2025

Premium Water Truck Pumps In Stock at UnitedBuilt

When every second counts on the job site, having access to high-quality, in-stock parts can make the difference between productivity and downtime. At UnitedBuilt, we proudly stock and distribute a wide range of OEM water truck pumps from trusted manufacturers like Berkeley and Franklin, as well as our own precision-engineered 4x3 centrifugal pumps—manufactured with rigorous quality standards and fast availability.

Whether you're replacing a worn-out pump, upgrading your fleet, or need fast repair parts, UnitedBuilt gives you access to reliable, high-performance solutions backed by knowledgeable support and outstanding value.

Trusted OEM Pumps from Berkeley and Franklin

UnitedBuilt is your direct source for OEM water pumps manufactured by Berkeley and Franklin—two of the most respected names in the water pump industry. These pumps are built for heavy-duty performance, making them ideal for construction, dust control, mining, and agricultural applications.

We carry a full range of pump sizes and configurations, including:

4x3 and 5x4 centrifugal water pumps
Self-priming water pumps
PTO driveshaft and hydraulic-driven pumps
Mechanical seal and rope packing seal pumps
Reseal and shaft kits
Impellers, casings, and wear rings

Each part is engineered to fit, built to last, and designed specifically for water trucks.

UnitedBuilt 4x3 Pumps – Engineered Strength, U.S. Manufacturing

Alongside our OEM offerings, UnitedBuilt designs and manufactures its own 4x3 centrifugal water truck pumps, engineered for rugged job site performance and built for direct interchange with Berkeley B68416, B68417, B66895, and B66899 models.

Each pump is manufactured using domestic and globally sourced materials, with all CNC-machining, painting, assembly, and quality control completed in Phoenix, Arizona. This ensures tightly controlled tolerances, precise fit, and reliable uptime in the field.

Key features include:

Certified StressProof® steel shafts with single-workholding machining
3A aircraft-grade shaft threads
Dynamic two-plane impeller balancing for vibration control
SAE 3000 gray iron castings produced from virgin iron ore
Four ¼-inch NPT drain ports for universal winterization
Mechanical seal and rope packing seal compatibility

Every unit is assembled and inspected by experienced machinists who understand the demands of water truck operations—and who take pride in delivering consistent, fleet-ready performance.

Quality Parts You Can Trust—OEM and UnitedBuilt

To keep your equipment running strong, UnitedBuilt offers a wide range of repair parts for both OEM and UnitedBuilt pumps, all built for durability and interchangeability.

We stock:

Genuine OEM parts from Berkeley and Franklin
UnitedBuilt aftermarket components engineered and CNC-machined in the U.S.
Shafts, impellers, wear rings, and seal housings
Options for mechanical seal and rope packing configurations
Balanced parts for reduced vibration and longer component life

Whether you're choosing OEM replacements or our precision-engineered UnitedBuilt parts, you get the same commitment to quality, availability, and support.

Repair Parts Always in Stock for Fast Turnaround

Time is money. That’s why we maintain a deep inventory of pumps and repair parts, ready to ship when you need them. Whether it’s a full pump replacement or a reseal kit, we’ve got you covered.

Fast same-day or next-day shipping
In-shop support for hands-on service
Expert technical guidance to help you find the right part

Diamond-Level Quality and Service

At UnitedBuilt, we don’t just stock parts—we provide diamond-grade service at every step. From sourcing OEM components to manufacturing and assembling our own engineered pumps, we combine precision with personal support to keep your equipment running at its best.

Every product is backed by a team that understands the real-world demands of water truck operations—and delivers with care, accuracy, and speed.

Easy Access to What You Need, When You Need It

With real-time inventory, a streamlined ordering process, and a team that speaks your language, UnitedBuilt makes it easy to get the pumps and parts you need—without the wait. Whether you manage a full fleet or operate a single truck, you'll get the same high-level support and fast turnaround every time.

Why Choose UnitedBuilt?

OEM pumps from brands like Berkeley and Franklin
UnitedBuilt 4x3 pumps manufactured with domestic and global materials
All machining, painting, assembly, and QC performed in Phoenix, AZ
CNC-machined aftermarket parts for OEM and in-house pumps
Fast, reliable shipping and responsive technical support
Diamond-level service from start to finish

Shop Water Truck Pumps Today

Don’t let pump failure slow your job site down. Explore our full selection of OEM pumps, UnitedBuilt-manufactured 4x3 pumps, and repair parts—all in stock and ready to ship when you need them.

👉 Shop Water Truck Pumps from UnitedBuilt

Filed in: Water Pumps

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Water Truck Pumps

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Premium Water Truck Pumps In Stock at UnitedBuilt

Premium Water Truck Pumps In Stock at UnitedBuilt

Trusted OEM Pumps from Berkeley and Franklin

UnitedBuilt 4x3 Pumps – Engineered Strength, U.S. Manufacturing

Quality Parts You Can Trust—OEM and UnitedBuilt

Repair Parts Always in Stock for Fast Turnaround

Diamond-Level Quality and Service

Easy Access to What You Need, When You Need It

Why Choose UnitedBuilt?

Shop Water Truck Pumps Today

Water Truck Pumps

Water Truck Pump, Cast Iron, 4x3, Counter-Clockwise (CCW), Grooved Ends, Mechanical Seal, UnitedBuilt M3ZRMS B68416MS

Water Truck Pump, Cast Iron, 4x3, Clockwise (CW), Grooved Ends, Mechanical Seal, UnitedBuilt M3ZRMS B68417MS

Water Truck Pump, Cast Iron, 4X3, Counter Clockwise (CCW), Grooved Ends, Rope Packing Seal, UnitedBuilt M3ZRM B66895MS

Water Truck Pump, Cast Iron, 4x3, Clockwise (CW), Grooved Ends, Rope Packing Seal, UnitedBuilt M3ZRM B66899MS

Water Truck Pump, Clockwise (CW), Rope Packing Seal, 4x3 Threaded FNPT, B3ZRM B3Z-HD , 1-1/2" Shaft x 3/8" Key, ATP B86070

Water Pump, CW Self Priming, Mechanical Seal, 4x4 FNPT, Hydraulic Drive, B4ZRKS, ATP B69876

Water Pump B3ZRMS, 4" Suction x 3" Discharge FNPT, Clockwise (CW), Mechanical Seal, Hydraulic Drive SAE C 4-Bolt, 1-1/4" x 14T Splined Shaft, Berkeley B69875

Water Truck Pump, Cast Iron, 4x3 Counter-Clockwise (CCW), Mechanical Seal, Groove Volute, Franklin XS439

Water Truck Pump, Cast Iron, 4x3 Clockwise (CW), Mechanical Seal, Groove Volute, Franklin XS439

Water Truck Pump B4ERBMS, 5" Suction x 4" Discharge Flanged, Counter Clockwise (CCW), Mechanical Seal, Berkeley B73027

Featured Water Truck Pumps

Water Truck Pump, Cast Iron, 4x3, Counter-Clockwise (CCW), Grooved Ends, Mechanical Seal, UnitedBuilt M3ZRMS B68416MS

Water Truck Pump, Cast Iron, 4x3, Clockwise (CW), Grooved Ends, Mechanical Seal, UnitedBuilt M3ZRMS B68417MS

Water Truck Pump, Cast Iron, 4X3, Counter Clockwise (CCW), Grooved Ends, Rope Packing Seal, UnitedBuilt M3ZRM B66895MS

Water Truck Pump, Cast Iron, 4x3, Clockwise (CW), Grooved Ends, Rope Packing Seal, UnitedBuilt M3ZRM B66899MS

Water Truck Pump, Clockwise (CW), Rope Packing Seal, 4x3 Threaded FNPT, B3ZRM B3Z-HD , 1-1/2" Shaft x 3/8" Key, ATP B86070

Water Pump, CW Self Priming, Mechanical Seal, 4x4 FNPT, Hydraulic Drive, B4ZRKS, ATP B69876

Water Pump B3ZRMS, 4" Suction x 3" Discharge FNPT, Clockwise (CW), Mechanical Seal, Hydraulic Drive SAE C 4-Bolt, 1-1/4" x 14T Splined Shaft, Berkeley B69875

Water Truck Pump, Cast Iron, 4x3 Counter-Clockwise (CCW), Mechanical Seal, Groove Volute, Franklin XS439

Water Truck Pump, Cast Iron, 4x3 Clockwise (CW), Mechanical Seal, Groove Volute, Franklin XS439

Water Truck Pump B4ERBMS, 5" Suction x 4" Discharge Flanged, Counter Clockwise (CCW), Mechanical Seal, Berkeley B73027

Water Truck Pump, Model B4JRMBH, 5" Suction x 4" Discharge Flanged, Counter-Clockwise (CCW), 13.5" Impeller, Rope Packing Seal, Berkeley B62323

Water Truck Pump, Model B4JRMBH, 5" Suction x 4" Discharge Flanged, Clockwise (CW), 13.5" Impeller, Rope Packing Seal, Berkeley B62321

Water Truck Pump B3ZRM, 4" Suction x 3" Discharge FNPT, 9" Impeller, Clockwise (CW), Rope Packing Seal, Hydraulic Motor Direct Coupling Drive, Berkeley B80357

Water Truck Pump, Counter-Clockwise (CCW), Rope Packing Seal, 4x3 Threaded FNPT, B3ZRM B3Z-HD, 1-1/2" Shaft x 3/8" Key, ATP B85874

Water Truck Pump, CW Self Priming, Mechanical Seal, 4x4 FNPT, Hydraulic Drive, B4ZRKS, Berkeley B69876

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