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Quality Water Truck Systems, Tanks & Parts Since 1947
Quality Water Truck Systems, Tanks & Parts Since 1947

Water Pumps & Parts

UnitedBuilt offers a complete selection of water truck pumps and pump replacement parts, including our own line of 4x3 cast iron centrifugal pumps designed for demanding dust suppression and fluid transfer applications. Engineered for durability and performance, our pumps are manufactured in the USA using domestic and global high-quality materials and built to strict quality standards.

Our UnitedBuilt pumps are available in both mechanical seal (M3ZRMS) and rope packing seal (M3ZRM) configurations, providing flexibility based on your maintenance preferences and operating conditions. Each model is designed as a direct replacement for Berkeley B3ZRM and B3ZRMS water truck pumps, ensuring easy integration and reliable performance.

In addition to complete pumps, we stock a full range of pump repair parts and components, including impellers, mechanical seals, packing kits, shaft kits, volutes, and related hardware. Whether you’re rebuilding a pump or replacing a single component, these parts are selected for reliability and compatibility in real-world applications.

We also stock and distribute genuine OEM water truck pumps from Berkeley and Franklin Electric, along with supporting components to keep your system operating efficiently.

We work to keep our most in-demand pumps and parts readily available and offer fast shipping to help minimize downtime and keep your equipment running. Whether you need a complete pump or replacement parts, you’ll find dependable solutions built for the job.

Water Pumps & Parts - UnitedBuilt Equipment

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  • Rubber, Clack B4T_K 15-1/16LG Neoprene 6, Berkeley L04119 - UnitedBuilt Equipment
    Save 37% Save %
    2 in stock

    Rubber, Clack B4T_K 15-1/16LG Neoprene 6, Berkeley L04119

    Berkeley
    $182.00
    $182.00 - $182.00
    $182.00
    $115.00
    $115.00 - $115.00
    $115.00

    Berkeley Pump L04119 Repair Part for Centrifugal Irrigation & Industrial Pumps, RUBBER,CLACK B4T_K 15-1/16LG N

    $182.00
    $182.00 - $182.00
    $182.00
    $115.00
    $115.00 - $115.00
    $115.00
    Save 37% Save %
  • Hydraulic Adapter Bracket SAEB for B3ZRM(S) Pumps, Cast Iron, Berkeley B07779 Bracket Only - UnitedBuilt Equipment
    Hydraulic Adapter Bracket SAEB for B3ZRM(S) Pumps, Cast Iron, Berkeley B07779 Bracket Only - UnitedBuilt Equipment
    17 in stock

    Hydraulic Adapter Bracket SAEB for B3ZRM(S) Pumps, Cast Iron, Berkeley B07779 Bracket Only

    Berkeley
    $0.00 - $0.00
    $0.00
    $268.00
    $268.00 - $268.00
    $268.00

    Hydraulic Adapter Bracket SAEB for B3ZRM(S) Pumps, Cast Iron, Berkeley B07779 Bracket Only

    $0.00 - $0.00
    $0.00
    $268.00
    $268.00 - $268.00
    $268.00
  • 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 - UnitedBuilt Equipment
    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 - UnitedBuilt Equipment
    Save 47% Save %
    3 in stock

    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

    Berkeley
    $5,387.00
    $5,387.00 - $5,387.00
    $5,387.00
    $2,875.00
    $2,875.00 - $2,875.00
    $2,875.00

    The Berkeley OEM B69875 Water Truck Pump (Model B3ZRMS) is a high-performance, frame-mounted centrifugal pump designed for reliable water transfer ...

    View full details
    $5,387.00
    $5,387.00 - $5,387.00
    $5,387.00
    $2,875.00
    $2,875.00 - $2,875.00
    $2,875.00
    Save 47% Save %
  • Weight Clack B4_K 7/16" Id, Berkeley S14842 - UnitedBuilt Equipment
    Save 41% Save %
    3 in stock

    Weight Clack B4_K 7/16" Id, Berkeley S14842

    Berkeley
    $153.00
    $153.00 - $153.00
    $153.00
    $90.00
    $90.00 - $90.00
    $90.00

    $153.00
    $153.00 - $153.00
    $153.00
    $90.00
    $90.00 - $90.00
    $90.00
    Save 41% Save %
  • Weight Clack 7/16" ID x 4-1/8" OD, Berkeley S15325 - UnitedBuilt Equipment
    Save 38% Save %
    3 in stock

    Weight Clack 7/16" ID x 4-1/8" OD, Berkeley S15325

    Berkeley
    $56.00
    $56.00 - $56.00
    $56.00
    $35.00
    $35.00 - $35.00
    $35.00

    Weight Clack 7/16" ID x 4-1/8" OD, Berkeley S15325

    $56.00
    $56.00 - $56.00
    $56.00
    $35.00
    $35.00 - $35.00
    $35.00
    Save 38% Save %
  • Mechanical Seal, 1-3/4 Type 21, Short BF1C1, Berkeley S32015 - UnitedBuilt Equipment
    Save 45% Save %
    2 in stock

    Mechanical Seal, 1-3/4 Type 21, Short BF1C1, Berkeley S32015

    Berkeley
    $772.00
    $772.00 - $772.00
    $772.00
    $425.00
    $425.00 - $425.00
    $425.00

    Mechanical Seal, 1-3/4 Type 21, Short BF1C1, Berkeley S32015

    $772.00
    $772.00 - $772.00
    $772.00
    $425.00
    $425.00 - $425.00
    $425.00
    Save 45% Save %
  • Water Pump B4ERBMS, 5" Suction x 4" Discharge Flanged, Counter Clockwise (CCW), Mechanical Seal, Berkeley B73027 - UnitedBuilt Equipment
    Water Pump B4ERBMS, 5" Suction x 4" Discharge Flanged, Counter Clockwise (CCW), Mechanical Seal, Berkeley B73027 - UnitedBuilt Equipment
    Save 42% Save %
    1 in stock

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

    Berkeley
    $13,237.00
    $13,237.00 - $13,237.00
    $13,237.00
    $7,628.00
    $7,628.00 - $7,628.00
    $7,628.00

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

    $13,237.00
    $13,237.00 - $13,237.00
    $13,237.00
    $7,628.00
    $7,628.00 - $7,628.00
    $7,628.00
    Save 42% Save %
  • image-coming-soon
    Save 35% Save %
    0 in stock. Available on backorder

    Packing Rings (Set of 6) 2-3/4ID x 1/2T 2-3 Berkeley S16448

    Berkeley
    $929.00
    $929.00 - $929.00
    $929.00
    $605.00
    $605.00 - $605.00
    $605.00

    Packing Rings (Set of 6) 2-3/4ID x 1/2T 2-3 Berkeley S16448

    $929.00
    $929.00 - $929.00
    $929.00
    $605.00
    $605.00 - $605.00
    $605.00
    Save 35% Save %
  • image-coming-soon
    Save 34% Save %
    1 in stock

    Impeller B4ERBMS CCW (B73027), 10-7/16 DIA CUT CI 1-1/4, Berkeley L06020

    Berkeley
    $3,584.00
    $3,584.00 - $3,584.00
    $3,584.00
    $2,350.00
    $2,350.00 - $2,350.00
    $2,350.00

    Impeller B4ERBMS CCW (B73027), 10-7/16 DIA CUT CI 1-1/4, Berkeley L06020

    $3,584.00
    $3,584.00 - $3,584.00
    $3,584.00
    $2,350.00
    $2,350.00 - $2,350.00
    $2,350.00
    Save 34% Save %
  • image-coming-soon
    Save 43% Save %
    1 in stock

    Impeller B3ZQM_ CW 7/8-9U 9FUL, Berkeley M04275

    Berkeley
    $2,459.00
    $2,459.00 - $2,459.00
    $2,459.00
    $1,400.00
    $1,400.00 - $1,400.00
    $1,400.00

    $2,459.00
    $2,459.00 - $2,459.00
    $2,459.00
    $1,400.00
    $1,400.00 - $1,400.00
    $1,400.00
    Save 43% Save %
  • image-coming-soon
    Save 51% Save %
    0 in stock. Available on backorder

    Water Pump, Model B4JRMBH, 5" Suction x 4" Discharge Flanged, Clockwise (CW), Hydraulic Drive SAE C 4-Bolt 1-1/4" x 14T, 13.5" Impeller, Rope Packing Seal, Berkeley B85479

    Berkeley
    $15,075.00
    $15,075.00 - $15,075.00
    $15,075.00
    $7,380.00
    $7,380.00 - $7,380.00
    $7,380.00

    Water Pump, Model B4JRMBH, 5" Suction x 4" Discharge Flanged, Clockwise (CW), Hydraulic Drive SAE C 4-Bolt 1-1/4" x 14T, 13.5" Impeller, Rope Packi...

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    $15,075.00
    $15,075.00 - $15,075.00
    $15,075.00
    $7,380.00
    $7,380.00 - $7,380.00
    $7,380.00
    Save 51% Save %
  • image-coming-soon
    Save 50% Save %
    1 in stock

    Water Truck Pump, Counter-Clockwise (CCW), 4" NPT Suction x 3" NPT Discharge, Rope Packing Seal, Cast Iron, 9" Impeller, B3ZRM, Berkeley B80303

    Berkeley
    $7,078.00
    $7,078.00 - $7,078.00
    $7,078.00
    $3,540.00
    $3,540.00 - $3,540.00
    $3,540.00

    Water Truck Pump, Counter-Clockwise (CCW), Rope Packing Seal, Cast Iron, 9" Impeller, B3ZRM, Berkeley B80303

    $7,078.00
    $7,078.00 - $7,078.00
    $7,078.00
    $3,540.00
    $3,540.00 - $3,540.00
    $3,540.00
    Save 50% Save %
  • Water Truck Pump, Model B4JRMBH, 5" Suction x 4" Discharge Flanged, Counter - Clockwise (CCW), 13.5" Impeller, Rope Packing Seal, Berkeley B62323 - UnitedBuilt Equipment
    Save 51% Save %
    0 in stock. Available on backorder

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

    Berkeley
    $14,908.00
    $14,908.00 - $14,908.00
    $14,908.00
    $7,300.00
    $7,300.00 - $7,300.00
    $7,300.00

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

    $14,908.00
    $14,908.00 - $14,908.00
    $14,908.00
    $7,300.00
    $7,300.00 - $7,300.00
    $7,300.00
    Save 51% Save %
  • Water Truck Pump, Model B4JRMBH, 5" Suction x 4" Discharge Flanged, Clockwise (CW), Keyed Shaft, 13.5" Impeller, Rope Packing Seal, Berkeley B62321 - UnitedBuilt Equipment
    Save 51% Save %
    1 in stock

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

    Berkeley
    $14,908.00
    $14,908.00 - $14,908.00
    $14,908.00
    $7,304.00
    $7,304.00 - $7,304.00
    $7,304.00

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

    $14,908.00
    $14,908.00 - $14,908.00
    $14,908.00
    $7,304.00
    $7,304.00 - $7,304.00
    $7,304.00
    Save 51% Save %
  • Hex Head Capscrew 3/8 - 16 X 3/4, Berkeley S26824 - UnitedBuilt Equipment
    Save 41% Save %
    5 in stock

    Hex Head Capscrew 3/8-16 X 3/4, Berkeley S26824

    Berkeley
    $11.79
    $11.79 - $11.79
    $11.79
    $7.00
    $7.00 - $7.00
    $7.00

    $11.79
    $11.79 - $11.79
    $11.79
    $7.00
    $7.00 - $7.00
    $7.00
    Save 41% Save %
  • Water Truck Pump B3ZRM, 4" Suction x 3" Discharge FNPT, 9" Impeller, Clockwise (CW), Rope Packing Seal, Hydraulic Motor Direct Coupling Drive, Berkeley B80357 - UnitedBuilt Equipment
    Save 48% Save %
    Typically Ships in 2-3 Days if Not In Stock | 0 in stock. Available on backorder

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

    Berkeley
    $7,155.00
    $7,155.00 - $7,155.00
    $7,155.00
    $3,720.00
    $3,720.00 - $3,720.00
    $3,720.00

    Berkeley B3ZRM model cast iron water truck pump with rope packing seal. Hydraulic Motor Direct Coupling Drive, 4" Suction x 3" Discharge FNPT with ...

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    $7,155.00
    $7,155.00 - $7,155.00
    $7,155.00
    $3,720.00
    $3,720.00 - $3,720.00
    $3,720.00
    Save 48% Save %
  • Elastomer Hub Coupling 10" 1 - 3/8" - 10T Vulkan, Berkeley B85403 - UnitedBuilt Equipment
    Save 34% Save %
    1 in stock

    Elastomer Hub Coupling 10" 1-3/8"-10T Vulkan, Berkeley B85403

    Berkeley
    $1,435.00
    $1,435.00 - $1,435.00
    $1,435.00
    $950.00
    $950.00 - $950.00
    $950.00

    $1,435.00
    $1,435.00 - $1,435.00
    $1,435.00
    $950.00
    $950.00 - $950.00
    $950.00
    Save 34% Save %
  • Seal, Oil, Clipper, 1 - 15/16" SFT, Berkeley S14764 - UnitedBuilt Equipment
    Seal, Oil, Clipper, 1 - 15/16" SFT, Berkeley S14764 - UnitedBuilt Equipment
    Save 33% Save %
    3 in stock

    Seal, Oil, Clipper, 1-15/16" SFT, Berkeley S14764

    Berkeley
    $194.00
    $194.00 - $194.00
    $194.00
    $130.00
    $130.00 - $130.00
    $130.00

    Seal, Oil, Clipper, 1-15/16" SFT, Berkeley S14764

    $194.00
    $194.00 - $194.00
    $194.00
    $130.00
    $130.00 - $130.00
    $130.00
    Save 33% Save %
  • Bearing, Roller AFBMA 50RK32, 1.9685" ID 3, Berkeley S15604 - UnitedBuilt Equipment
    Bearing, Roller AFBMA 50RK32, 1.9685" ID 3, Berkeley S15604 - UnitedBuilt Equipment
    Save 29% Save %
    0 in stock. Available on backorder

    Bearing, Roller AFBMA 50RK32, 1.9685" ID 3, Berkeley S15604

    Berkeley
    $703.00
    $703.00 - $703.00
    $703.00
    $499.00
    $499.00 - $499.00
    $499.00

    Bearing, Roller AFBMA 50RK32, 1.9685" ID 3, Berkeley S15604

    $703.00
    $703.00 - $703.00
    $703.00
    $499.00
    $499.00 - $499.00
    $499.00
    Save 29% Save %
  • Spacer Impeller Hub 7/8ID 1 - 1/8"OD (PUMPBS15405) - UnitedBuilt Equipment
    Save 43% Save %
    2 in stock

    Spacer Impeller Hub 7/8ID 1-1/8"OD (PUMPBS15405)

    Berkeley
    $36.00
    $36.00 - $36.00
    $36.00
    $20.60
    $20.60 - $20.60
    $20.60

    Impeller spacer Hub 7/8" ID x 1-1/8" OD Berkeley S15405

    $36.00
    $36.00 - $36.00
    $36.00
    $20.60
    $20.60 - $20.60
    $20.60
    Save 43% Save %
  • Water Truck Pump, CW Self Priming, Mechanical Seal, 4x4 FNPT, Hydraulic Drive, B4ZRKS, Berkeley B69876 - UnitedBuilt Equipment
    0 in stock. Available on backorder

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

    Berkeley
    $0.00 - $0.00
    $0.00
    $3,700.00
    $3,700.00 - $3,700.00
    $3,700.00

    The Berkeley OEM B69876 Water Truck Pump (Model B4ZRKS) is a heavy-duty, self-priming centrifugal pump. Featuring 4" x 4" FNPT suction and discharg...

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    $0.00 - $0.00
    $0.00
    $3,700.00
    $3,700.00 - $3,700.00
    $3,700.00
  • Gasket Blind Flange, Berkeley S10364 - UnitedBuilt Equipment
    Save 42% Save %
    3 in stock

    Gasket Blind Flange, Berkeley S10364

    Berkeley
    $29.00
    $29.00 - $29.00
    $29.00
    $16.75
    $16.75 - $16.75
    $16.75

    $29.00
    $29.00 - $29.00
    $29.00
    $16.75
    $16.75 - $16.75
    $16.75
    Save 42% Save %
  • Water Pump, Model B4JRMBHS, 5" Suction x 4" Discharge Flanged, Clockwise (CW), Keyed Shaft, 13" Impeller, Mechanical Seal, Berkeley B61050 - UnitedBuilt Equipment
    Water Pump, Model B4JRMBHS, 5" Suction x 4" Discharge Flanged, Clockwise (CW), Keyed Shaft, 13" Impeller, Mechanical Seal, Berkeley B61050 - UnitedBuilt Equipment
    Save 51% Save %
    1 in stock

    Water Truck Pump, Model B4JRMBHS, 5" Suction x 4" Discharge Flanged, Clockwise (CW), Keyed Shaft, 13.5" Impeller, Mechanical Seal, Berkeley B61050

    Berkeley
    $16,513.00
    $16,513.00 - $16,513.00
    $16,513.00
    $8,050.00
    $8,050.00 - $8,050.00
    $8,050.00

    The Berkeley OEM B61050 Water Truck Pump (Model B4JRMBHS) is a heavy-duty, frame-mounted centrifugal pump designed for high-volume water transfer i...

    View full details
    $16,513.00
    $16,513.00 - $16,513.00
    $16,513.00
    $8,050.00
    $8,050.00 - $8,050.00
    $8,050.00
    Save 51% Save %
  • Water Pump, Model B4JRMBHS, 5" Suction x 4" Discharge Flanged, Clockwise (CW), Hydraulic Drive SAE C 4 - Bolt 1 - 1/4" x 14T, 13" Impeller, Mechanical Seal, Berkeley B69743 - UnitedBuilt Equipment
    Water Pump, Model B4JRMBHS, 5" Suction x 4" Discharge Flanged, Clockwise (CW), Hydraulic Drive SAE C 4 - Bolt 1 - 1/4" x 14T, 13" Impeller, Mechanical Seal, Berkeley B69743 - UnitedBuilt Equipment
    Save 50% Save %
    3 in stock

    Water Pump, Model B4JRMBHS, 5" Suction x 4" Discharge Flanged, Clockwise (CW), Hydraulic Drive SAE C 4-Bolt 1-1/4" x 14T, 13" Impeller, Mechanical Seal, Berkeley B69743

    Berkeley
    $14,899.00
    $14,899.00 - $14,899.00
    $14,899.00
    $7,449.00
    $7,449.00 - $7,449.00
    $7,449.00

    The Berkeley OEM B69743 Water Truck Pump (Model B4JRMBHS) is a high-performance, heavy-duty centrifugal water truck pump designed for large-capacit...

    View full details
    $14,899.00
    $14,899.00 - $14,899.00
    $14,899.00
    $7,449.00
    $7,449.00 - $7,449.00
    $7,449.00
    Save 50% Save %

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