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

Water Pump Parts

UnitedBuilt offers a complete selection of water truck pump parts designed to keep your equipment operating reliably in demanding applications. Our inventory includes impellers, mechanical seals, packing kits, shaft kits, volutes, bearings, and other essential pump components used for maintenance, repair, and rebuilds.

Our UnitedBuilt pump parts are engineered for durability and consistent performance, providing a dependable solution for maintaining and extending the life of your equipment. Designed for compatibility with common water truck pump configurations, these components are built to perform in real-world conditions.

In addition to our UnitedBuilt lineup, we also stock genuine OEM pump parts from Berkeley and Franklin Electric, ensuring proper fit and performance for a wide range of pump systems.

Whether you’re replacing a worn component or rebuilding a complete pump, our parts are selected for reliability, compatibility, and long service life.

We work to keep our most in-demand pump parts readily available and offer fast shipping to help minimize downtime and keep your equipment running.

Water Pump Parts - UnitedBuilt Equipment

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  • Retaining Ring, External, Black Phosphate, 1-1/8" Shaft 1-3/16 (PUMPBS23010) - UnitedBuilt Equipment
    19 in stock

    Retaining Ring, External, Black Phosphate, 1-1/8" Shaft 1-3/16, UnitedBuilt S23010MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $2.25
    $2.25 - $2.25
    $2.25

    Retaining Ring, External, Steel 1-3/16" Shaft, Rotor Clip  SH-118 External Rings fit into the groove of a shaft. The portion of the ring that protr...

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    $0.00 - $0.00
    $0.00
    $2.25
    $2.25 - $2.25
    $2.25
  • Shaft Kit Rope Packing CW UnitedBuilt B80698MS - UnitedBuilt Equipment
    Shaft Kit Rope Packing CW UnitedBuilt B80698MS - UnitedBuilt Equipment
    9 in stock

    Shaft Kit, Rope Packing, B3ZRM CW, Stressproof® Steel, 1-1/8" x 1/4" Key, UnitedBuilt B80698MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $265.00
    $265.00 - $265.00
    $265.00

    UnitedBuilt B80698MS Shaft Kit for M3ZRM CW rope packing pump. Manufactured in the USA of original Niagara LaSalle’s patented Stressproof® steel an...

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    $0.00 - $0.00
    $0.00
    $265.00
    $265.00 - $265.00
    $265.00
  • Ball Bearing Single Row UnitedBuilt S13270MS - UnitedBuilt Equipment
    Ball Bearing Single Row UnitedBuilt S13270MS - UnitedBuilt Equipment
    20 in stock

    Ball Bearing, Single Row, 6206-C3, UnitedBuilt S13270MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $26.99
    $26.99 - $26.99
    $26.99

    UnitedBuilt Ball Bearing Single Row, Inboard (M3Z) Not sure if it fits? Call us at 602-253-7739 or send us a message in our chat.  

    $0.00 - $0.00
    $0.00
    $26.99
    $26.99 - $26.99
    $26.99
  • Volute, Cast Iron, 4x3, Clockwise (CW), Grooved Ends, UnitedBuilt M3Z H04040MS - UnitedBuilt Equipment
    23 in stock

    Volute, Cast Iron, 4x3, Clockwise (CW), Grooved Ends, UnitedBuilt M3Z H04040MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $350.00
    $350.00 - $350.00
    $350.00

    UnitedBuilt Volute CW Groove (M3Z) Manufactured in the USA of Domestic and Imported Materials ASTM126 30B heavy-duty cast gray iron Not sure if ...

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    $0.00 - $0.00
    $0.00
    $350.00
    $350.00 - $350.00
    $350.00
  • Case Gasket FTT, Franklin 305454042 - UnitedBuilt Equipment
    Case Gasket FTT, Franklin 305454042 - UnitedBuilt Equipment
    Save 23% Save %
    7 in stock

    Case Gasket FTT, Franklin 305454042

    Franklin
    $43.77
    $43.77 - $43.77
    $43.77
    $33.50
    $33.50 - $33.50
    $33.50

    $43.77
    $43.77 - $43.77
    $43.77
    $33.50
    $33.50 - $33.50
    $33.50
    Save 23% Save %
  • Weight Clack B4_K 7/16" Id, Berkeley S14842 - UnitedBuilt Equipment
    Save 41% Save %
    2 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 %
    2 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 %
  • Ball Bearing 1.18ID X 2.8 UnitedBuilt S13271MS - UnitedBuilt Equipment
    Ball Bearing 1.18ID X 2.8 UnitedBuilt S13271MS - UnitedBuilt Equipment
    18 in stock

    Ball Bearing, Double Row, 5306-C3, UnitedBuilt S13271MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $50.00
    $50.00 - $50.00
    $50.00

    Ball Bearing Double Row, Outboard (M3Z) Not sure if it fits? Call us at 602-253-7739 or send us a message in our chat.  

    $0.00 - $0.00
    $0.00
    $50.00
    $50.00 - $50.00
    $50.00
  • Bearing Cap M3ZRM(S) CW & CCW UnitedBuilt S19914MS - UnitedBuilt Equipment
    Bearing Cap M3ZRM(S) CW & CCW UnitedBuilt S19914MS - UnitedBuilt Equipment
    7 in stock

    Bearing Cap M3ZRM(S) CW & CCW, Cast Iron, UnitedBuilt S19914MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $109.50
    $109.50 - $109.50
    $109.50

    UnitedBuilt Outer Bearing Cap (B3Z) Keeps grease on your bearings and dirt and debris out. When rebuilding a pump, check that this component is in ...

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    $0.00 - $0.00
    $0.00
    $109.50
    $109.50 - $109.50
    $109.50
  • Sleeve, Shaft 1 - 1/2" ID x 1 - 7/8" OD, B4E, Berkeley S05974 - UnitedBuilt Equipment
    Save 30% Save %
    1 in stock

    Shaft Sleeve, 1-1/2" ID x 1-7/8" OD x 3-1/2" Long, B_JR, B4E, Berkeley S05974L

    Berkeley
    $549.00
    $549.00 - $549.00
    $549.00
    $384.00
    $384.00 - $384.00
    $384.00

    $549.00
    $549.00 - $549.00
    $549.00
    $384.00
    $384.00 - $384.00
    $384.00
    Save 30% Save %
  • Countersunk Plug, Hex Socket, 1/4" MNPT, Vibra Seal, Brass 3153X4 - UnitedBuilt Equipment
    Countersunk Plug, Hex Socket, 1/4" MNPT, Vibra Seal, Brass 3153X4 - UnitedBuilt Equipment
    1712 in stock

    Countersunk Plug, Hex Socket, 1/4" MNPT, Vibra Seal, Brass 3153X4

    Mid-America
    $0.00 - $0.00
    $0.00
    $1.61
    $1.61 - $1.61
    $1.61

    Countersunk Plug, Hex Socket, 1/4" MNPT, Vibra Seal, Brass Brass C360 Vibra Seal Threads

    $0.00 - $0.00
    $0.00
    $1.61
    $1.61 - $1.61
    $1.61
  • Mystik® JT - 6® High Temp #2 Grease 14oz Tube - UnitedBuilt Equipment
    34 in stock

    Mystik® JT-6® High Temp #2 Grease 14oz Tube

    Mystik
    $0.00 - $0.00
    $0.00
    $7.50
    $7.50 - $7.50
    $7.50

    Mystik JT-6 High Temp Grease #2 is a high-temperature, lithium-complex grease that combines excellent multi-purpose properties with a high dropping...

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    $0.00 - $0.00
    $0.00
    $7.50
    $7.50 - $7.50
    $7.50
  • 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 %
  • Gasket Blind Flange, Berkeley S10364 - UnitedBuilt Equipment
    Save 42% Save %
    6 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 %
  • Nut Berkeley Packing Gland B3J, 1/2 - 13 Hex Nut Brass, UnitedBuilt S23347 - UnitedBuilt Equipment
    0 in stock. Available on backorder

    Nut Berkeley Packing Gland B3J, 1/2-13 Hex Nut Brass, UnitedBuilt S23347

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $3.39
    $3.39 - $3.39
    $3.39

    $0.00 - $0.00
    $0.00
    $3.39
    $3.39 - $3.39
    $3.39
  • Countersunk Plug, Hex Socket, 1/8" MNPT, Vibra Seal, Brass (3153X2) - UnitedBuilt Equipment
    794 in stock

    Countersunk Plug, Hex Socket, 1/8" MNPT, Vibra Seal, Brass (3153X2)

    Mid-America
    $0.00 - $0.00
    $0.00
    $0.94
    $0.94 - $0.94
    $0.94

    Countersunk Plug, Hex Socket, 1/8" MNPT, Vibra Seal, Brass Brass C360 Vibra Seal Threads

    $0.00 - $0.00
    $0.00
    $0.94
    $0.94 - $0.94
    $0.94
  • Lock Nut 7/8 - 9 RH, Stainless Steel, UnitedBuilt M10220 - UnitedBuilt Equipment
    38 in stock

    Lock Nut 7/8-9 RH, Stainless Steel, UnitedBuilt M10220

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $12.75
    $12.75 - $12.75
    $12.75

    UnitedBuilt Impeller Lock Nut 7/8-9 RH, Stainless Steel CW (M3Z) 7/8-9 RH Stainless Steel Not sure if it fits? Call us at 602-253-7739 or send us...

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    $0.00 - $0.00
    $0.00
    $12.75
    $12.75 - $12.75
    $12.75
  • Hydraulic Coupler *Only* SAE B XS9, Franklin 305462041 - UnitedBuilt Equipment
    Hydraulic Coupler *Only* SAE B XS9, Franklin 305462041 - UnitedBuilt Equipment
    Save 13% Save %
    4 in stock

    Hydraulic Coupler *Only* SAE B XS9, Franklin 305462041

    Franklin
    $557.00
    $557.00 - $557.00
    $557.00
    $487.00
    $487.00 - $487.00
    $487.00

    Hydraulic Coupler *Only* SAE B XS9, Franklin 305462041

    $557.00
    $557.00 - $557.00
    $557.00
    $487.00
    $487.00 - $487.00
    $487.00
    Save 13% Save %
  • image-coming-soon
    Save 31% Save %
    2 in stock

    Shaft Kit, B3ZRMS MEGA (B69875) CW, Berkeley B73053

    Berkeley
    $2,591.00
    $2,591.00 - $2,591.00
    $2,591.00
    $1,800.00
    $1,800.00 - $1,800.00
    $1,800.00

    Shaft Kit, B3ZRMS MEGA (B69875) CW, Berkeley B73053

    $2,591.00
    $2,591.00 - $2,591.00
    $2,591.00
    $1,800.00
    $1,800.00 - $1,800.00
    $1,800.00
    Save 31% Save %
  • image-coming-soon
    Save 35% Save %
    2 in stock

    Gasket, Seal Retainer 5-1/8ID 6.94OD VEG, Berkeley S16800

    Berkeley
    $45.00
    $45.00 - $45.00
    $45.00
    $29.12
    $29.12 - $29.12
    $29.12

    $45.00
    $45.00 - $45.00
    $45.00
    $29.12
    $29.12 - $29.12
    $29.12
    Save 35% Save %
  • Packing Ring Set, 1 - 7/8ID x 2 - 5/8OD, 3/8" Cross Section, 4 Rings, Berkeley S13436 - UnitedBuilt Equipment
    Save 40% Save %
    4 in stock

    Packing Ring Set, 1-7/8ID x 2-5/8OD, 3/8" Cross Section, 4 Rings, Berkeley S13436

    Berkeley
    $335.00
    $335.00 - $335.00
    $335.00
    $200.00
    $200.00 - $200.00
    $200.00

    $335.00
    $335.00 - $335.00
    $335.00
    $200.00
    $200.00 - $200.00
    $200.00
    Save 40% Save %
  • Shaft Kit, Mechanical Seal, B3ZRMS CW LONG, Stressproof®, 1 - 1/8" x 1/4" Key, UnitedBuilt B80699MS - L - UnitedBuilt Equipment
    Shaft Kit, Mechanical Seal, B3ZRMS CW LONG, Stressproof®, 1 - 1/8" x 1/4" Key, UnitedBuilt B80699MS - L - UnitedBuilt Equipment
    9 in stock

    Shaft Kit, Mechanical Seal, B3ZRMS CW LONG, Stressproof®, 1-1/8" x 1/4" Key, UnitedBuilt B80699MS-L

    UnitedBuilt
    $268.30 - $268.30
    $268.30
    $268.30
    $268.30 - $268.30
    $268.30

    UnitedBuilt B80699MS-L Shaft Kit designed for ATP B3ZRMS-style aftermarket clockwise (CW) rope packing pumps with a long shaft. Some aftermarket B3...

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    $268.30 - $268.30
    $268.30
    $268.30
    $268.30 - $268.30
    $268.30
  • image-coming-soon
    8 in stock

    Hydraulic Spline Coupler (Coupling) 1-1/4" Spline 14 Tooth, M10176

    UnitedBuilt Choice
    $0.00 - $0.00
    $0.00
    $215.00
    $215.00 - $215.00
    $215.00

    $0.00 - $0.00
    $0.00
    $215.00
    $215.00 - $215.00
    $215.00
  • Hex Nut 3/8 - 16 Steel, Berkeley S23103 - UnitedBuilt Equipment
    Save 29% Save %
    28 in stock

    Hex Nut 3/8-16 Brass, Berkeley S23103 (U36-38ZP)

    Berkeley
    $2.10
    $2.10 - $2.10
    $2.10
    $1.50
    $1.50 - $1.50
    $1.50

    $2.10
    $2.10 - $2.10
    $2.10
    $1.50
    $1.50 - $1.50
    $1.50
    Save 29% Save %