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

Water Truck Parts

UnitedBuilt offers a complete selection of water truck parts to keep your equipment running reliably in demanding applications. Our inventory includes water truck pumps, valves, spray heads, hose reels, air controls & fittings, PTOs and hydraulics, water cannons, nozzles, and other essential components used across a wide range of water truck systems.

We supply replacement and alternative parts for most major water truck brands, making it easy to find compatible components for your specific setup. Whether you’re performing routine maintenance or repairing critical equipment, our parts are selected for durability, performance, and real-world reliability.

We carry products from trusted manufacturers including UnitedBuilt, Berkeley, Franklin Electric, Victaulic, Elkhart Brass, Coxreels®, Netafim, Dixon, EATON Bezares, Cla-Val, Camozzi, Sealco, and Buyers Products, ensuring quality and compatibility across your system.

With over 75 years of experience, UnitedBuilt is a trusted source for water truck parts and support. You can search our site using a manufacturer part number, UnitedBuilt SKU, or product description to quickly locate what you need. If you don’t see the part you’re looking for, our team is available to help—call us at 602-253-7739 for assistance.

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

Water Truck Parts - UnitedBuilt Equipment

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  • Water Pump, Cast Iron, 4x3, Clockwise (CW), Grooved Ends, Rope Packing Seal, UnitedBuilt M3ZRM B66899MS - UnitedBuilt Equipment
    Water Pump, Cast Iron, 4x3, Clockwise (CW), Grooved Ends, Rope Packing Seal, UnitedBuilt M3ZRM B66899MS - UnitedBuilt Equipment
    2 in stock

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

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $1,275.00
    $1,275.00 - $1,275.00
    $1,275.00

    The UnitedBuilt B66899MS Water Truck Pump is a heavy-duty, high-quality aftermarket replacement for the Berkeley B66899 (B3ZRM), designed for relia...

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    $0.00 - $0.00
    $0.00
    $1,275.00
    $1,275.00 - $1,275.00
    $1,275.00
  • Rope Packing Set (6 Pieces), UnitedBuilt M3ZRM S14022MS - UnitedBuilt Equipment
    84 in stock

    Rope Packing Set (6 Pieces), 1/4" SQ Braided Graphite/PTFE, UnitedBuilt M3ZRM S14022MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $27.75
    $27.75 - $27.75
    $27.75

    Rope Packing Set (6 Pieces) S14022 for B3ZRM pumps.

    $0.00 - $0.00
    $0.00
    $27.75
    $27.75 - $27.75
    $27.75
  • Diaphragm Assembly, No Spring, 3" Cla - Val 81665C & 3" UnitedBuilt AV5293 - UnitedBuilt Equipment
    Diaphragm Assembly, No Spring, 3" Cla-Val 81665C & 3" UnitedBuilt AV5293 - UnitedBuilt Equipment
    103 in stock

    Diaphragm Assembly, No Spring, 3" Cla-Val 81665C & 3" UnitedBuilt AV5293

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $67.00
    $67.00 - $67.00
    $67.00

    Diaphragm Assembly,  No Spring, 3" Cla-Val 81665C & 3" UnitedBuilt AV5293

    $0.00 - $0.00
    $0.00
    $67.00
    $67.00 - $67.00
    $67.00
  • Packing Split Gland, Cast Iron, UnitedBuilt M3ZRM B82468MS - UnitedBuilt Equipment
    Packing Split Gland, Cast Iron, UnitedBuilt M3ZRM B82468MS - UnitedBuilt Equipment
    15 in stock

    Packing Split Gland, Cast Iron, 1-1/8" Shaft, UnitedBuilt M3ZRM B82468MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $60.00
    $60.00 - $60.00
    $60.00

    Split packing gland set made of cast iron for B3ZRM/M3ZRM pumps.

    $0.00 - $0.00
    $0.00
    $60.00
    $60.00 - $60.00
    $60.00
  • Seal Kit, Rope Packing, UnitedBuilt M3ZRM (Gasket, Slinger, Grease Cap, Rope Kit, Bolts, and Nuts) - UnitedBuilt Equipment
    Seal Kit, Rope Packing, UnitedBuilt M3ZRM (Gasket, Slinger, Grease Cap, Rope Kit, Bolts, and Nuts) - UnitedBuilt Equipment
    Save 5% Save %
    64 in stock

    Seal Kit, Rope Packing, UnitedBuilt M3ZRM (Gasket, Slinger, Grease Cap, Rope Kit, Bolts, and Nuts)

    UnitedBuilt
    $78.20
    $78.20 - $78.20
    $78.20
    $74.29
    $74.29 - $74.29
    $74.29

    Get all the essentials you need with the UnitedBuilt Pump Accessories Bundle. This bundle includes the Rope Packing Set (6 Pieces) S14022 for B3ZRM...

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    $78.20
    $78.20 - $78.20
    $78.20
    $74.29
    $74.29 - $74.29
    $74.29
    Save 5% Save %
  • Diaphragm, Spray Head Valve BC2410, UnitedBuilt 71A - 3 - UnitedBuilt Equipment
    Diaphragm, Spray Head Valve BC2410, UnitedBuilt 71A - 3 - UnitedBuilt Equipment
    1810 in stock

    Diaphragm, Spray Head Valve BC2410, UnitedBuilt 71A-3

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $6.50
    $6.50 - $6.50
    $6.50

    UnitedBuilt Diaphragm, Spray Head Valve UnitedBuilt BC2410 T16 Style Diaphragm for UnitedBuilt BC2410 Spray Head Valve

    $0.00 - $0.00
    $0.00
    $6.50
    $6.50 - $6.50
    $6.50
  • Tank Mounting Spring, Zinc Plated, UnitedBuilt - UnitedBuilt Equipment
    738 in stock

    Tank Mounting Spring, Zinc Plated, UnitedBuilt

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $17.00
    $17.00 - $17.00
    $17.00

    UnitedBuilt water truck tank mounting spring, zinc plated. Made in the USA.

    $0.00 - $0.00
    $0.00
    $17.00
    $17.00 - $17.00
    $17.00
  • Seal Kit, Mechanical Seal, UnitedBuilt M3ZRMS (Gasket, Slinger, Grease Cap, and Mechanical Seal) - UnitedBuilt Equipment
    Seal Kit, Mechanical Seal, UnitedBuilt M3ZRMS (Gasket, Slinger, Grease Cap, and Mechanical Seal) - UnitedBuilt Equipment
    Save 5% Save %
    71 in stock

    Seal Kit, Mechanical Seal, UnitedBuilt M3ZRMS (Gasket, Slinger, Grease Cap, and Mechanical Seal)

    UnitedBuilt
    $101.72
    $101.72 - $101.72
    $101.72
    $96.63
    $96.63 - $96.63
    $96.63

    Upgrade and optimize your pump system with the ultimate bundle from UnitedBuilt. This comprehensive package includes a high-quality 1-1/8" Type C M...

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    $101.72
    $101.72 - $101.72
    $101.72
    $96.63
    $96.63 - $96.63
    $96.63
    Save 5% Save %
  • Powerhead, Cast Iron, 4x3, Counter Clockwise (CCW), Rope Packing Seal, UnitedBuilt M3ZRM B85551MS - UnitedBuilt Equipment
    Powerhead, Cast Iron, 4x3, Counter Clockwise (CCW), Rope Packing Seal, UnitedBuilt M3ZRM B85551MS - UnitedBuilt Equipment
    37 in stock

    Powerhead, Cast Iron, 4x3, Counter Clockwise (CCW), Rope Packing Seal, UnitedBuilt M3ZRM B85551MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $925.00
    $925.00 - $925.00
    $925.00

    UnitedBuilt Powerhead M3ZRM 4X3 Rope Packing CCW Complete centrifugal water pump, less the volute. This powerhead bolts directly to your existing p...

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    $0.00 - $0.00
    $0.00
    $925.00
    $925.00 - $925.00
    $925.00
  • Light Harness, Rearsill, 6-Lamp, UnitedBuilt RA4610-B - UnitedBuilt Equipment
    204 in stock

    Light Harness, Rearsill, 6-Lamp, UnitedBuilt RA4610-B

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $78.51
    $78.51 - $78.51
    $78.51

    Light Harness, 6-Lamp Rearsill, Pig Tails For (2) Peterson M817C-7 Back-Up Lights, White, and (4) Peterson M826R-7 Stop/Turn/Tail Lights, Red.

    $0.00 - $0.00
    $0.00
    $78.51
    $78.51 - $78.51
    $78.51
  • Slinger Water 1-3/32 ID, UnitedBuilt M3Z S12260MS - UnitedBuilt Equipment
    154 in stock

    Slinger Water 1-3/32 ID, UnitedBuilt M3Z S12260MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $3.00
    $3.00 - $3.00
    $3.00

    UnitedBuilt Water Slinger for B3Z & B4Z pumps. 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
    $3.00
    $3.00 - $3.00
    $3.00
  • Spray Valve Cap for AV1100 or BC2410, Aluminum, UnitedBuilt - UnitedBuilt Equipment
    Spray Valve Cap for AV1100 or BC2410, Aluminum, UnitedBuilt - UnitedBuilt Equipment
    1230 in stock

    Spray Valve Cap for AV1100 or BC2410, Aluminum, UnitedBuilt

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $30.00
    $30.00 - $30.00
    $30.00

    Valve Cap, Aluminum, AV1100 & BC2410 UnitedBuilt Precision cast and machined in the USA For AV1100 and BC2410 UnitedBuilt OEM

    $0.00 - $0.00
    $0.00
    $30.00
    $30.00 - $30.00
    $30.00
  • Internal Polymer Washer for AV1100 Spray Head Valve, UnitedBuilt AV1100 - PW - UnitedBuilt Equipment
    Internal Polymer Washer for AV1100 Spray Head Valve, UnitedBuilt AV1100 - PW - UnitedBuilt Equipment
    1283 in stock

    Internal Polymer Washer for AV1100 Spray Head Valve, UnitedBuilt AV1100-PW

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $9.10
    $9.10 - $9.10
    $9.10

    Internal Polymer Valve Seat, Spray Valve UnitedBuilt AV1100 UnitedBuilt OEM

    $0.00 - $0.00
    $0.00
    $9.10
    $9.10 - $9.10
    $9.10
  • Spring, Spray Head Valve UnitedBuilt AV1100 (VALINL0300MP116) - UnitedBuilt Equipment
    2798 in stock

    Internal Spring for AV1100 Spray Head Valve, UnitedBuilt AV1100-SPG

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $12.62
    $12.62 - $12.62
    $12.62

    UnitedBuilt Spring for AV1100 Spray Valve Specifically designed and manufactured for our AV1100 spray valve to keep the valve closed under gravity ...

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    $0.00 - $0.00
    $0.00
    $12.62
    $12.62 - $12.62
    $12.62
  • Shaft Kit Rope Packing CCW UnitedBuilt B80696MS - UnitedBuilt Equipment
    Shaft Kit Rope Packing CCW UnitedBuilt B80696MS - UnitedBuilt Equipment
    6 in stock

    Shaft Kit, Rope Packing, B3ZRM CCW, Stressproof® Steel, 1-1/8" x 1/4" Key, UnitedBuilt B80696MS

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

    UnitedBuilt B80696MS Shaft Kit for M3ZRM CCW rope packing pump. Manufactured in the USA of original Niagara LaSalle’s patented Stressproof® steel a...

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    $0.00 - $0.00
    $0.00
    $265.00
    $265.00 - $265.00
    $265.00
  • Impeller, Cast Iron, Counter Clockwise (CCW), UnitedBuilt M3Z M02181MS - UnitedBuilt Equipment
    Impeller, Cast Iron, Counter Clockwise (CCW), UnitedBuilt M3Z M02181MS - UnitedBuilt Equipment
    15 in stock

    Impeller, Cast Iron, Counter Clockwise (CCW), UnitedBuilt M3Z M02181MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $295.00
    $295.00 - $295.00
    $295.00

    UnitedBuilt threaded Counter-Clock Wise (CCW) cast iron impeller for M3Z pumps (or Berkeley B3Z) style pumps.

    $0.00 - $0.00
    $0.00
    $295.00
    $295.00 - $295.00
    $295.00
  • Mechanical Seal, Ceramic, 1-1/8" Type C (John Crane Type 21), UnitedBuilt M3ZRMS S32690MS - UnitedBuilt Equipment
    Mechanical Seal, Ceramic, 1-1/8" Type C (John Crane Type 21), UnitedBuilt M3ZRMS S32690MS - UnitedBuilt Equipment
    139 in stock

    Mechanical Seal, Ceramic, 1-1/8" Type C (John Crane Type 21), UnitedBuilt M3ZRMS S32690MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $67.63
    $67.63 - $67.63
    $67.63

    1-1/8″ Type C (John Crane Type 21) Short Mechanical Pump Seal for B3Z & B4Z model pumps. For B68416, B68417, B69876

    $0.00 - $0.00
    $0.00
    $67.63
    $67.63 - $67.63
    $67.63
  • Seal Kit for UnitedBuilt BC2410 Spray Head Valve - UnitedBuilt Equipment
    Seal Kit for UnitedBuilt BC2410 Spray Head Valve - UnitedBuilt Equipment
    449 in stock

    Seal Kit for UnitedBuilt BC2410 Spray Head Valve

    UnitedBuilt
    $75.93 - $75.93
    $75.93
    $75.93
    $75.93 - $75.93
    $75.93

    Seal Kit for UnitedBuilt BC2410 Spray Head Valve

    $75.93 - $75.93
    $75.93
    $75.93
    $75.93 - $75.93
    $75.93
  • Bolt, Square Head, 3/8"-16 x 2-1/2", (2 Required for Packing Gland), UnitedBuilt M3ZRM S23762MS - UnitedBuilt Equipment
    274 in stock

    Bolt, Square Head, 3/8"-16 x 2-1/2", (2 Required for Packing Gland), UnitedBuilt M3ZRM S23762MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $6.68
    $6.68 - $6.68
    $6.68

    Bolt, Square Head, Zinc Plated 3/8-16 x 2-1/2" S23762

    $0.00 - $0.00
    $0.00
    $6.68
    $6.68 - $6.68
    $6.68
  • Powerhead, Cast Iron, 4x3, Counter Clockwise (CCW), Mechanical Seal, UnitedBuilt M3ZRMS B85549MS - UnitedBuilt Equipment
    Powerhead, Cast Iron, 4x3, Counter Clockwise (CCW), Mechanical Seal, UnitedBuilt M3ZRMS B85549MS - UnitedBuilt Equipment
    37 in stock

    Powerhead, Cast Iron, 4x3, Counter Clockwise (CCW), Mechanical Seal, UnitedBuilt M3ZRMS B85549MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $950.00
    $950.00 - $950.00
    $950.00

    UnitedBuilt Powerhead M3ZRMS 4X3 Mechanical Seal CCW Complete centrifugal water pump, less the volute. This powerhead bolts directly to your existi...

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    $0.00 - $0.00
    $0.00
    $950.00
    $950.00 - $950.00
    $950.00
  • Grease Cap, UnitedBuilt M3ZRM(S) S19033MS - UnitedBuilt Equipment
    Grease Cap, UnitedBuilt M3ZRM(S) S19033MS - UnitedBuilt Equipment
    141 in stock

    Grease Cap, UnitedBuilt M3ZRM(S) S19033MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $20.00
    $20.00 - $20.00
    $20.00

    UnitedBuilt Inner Bearing Cap for B3Z & B4Z pumps. Keeps grease on your bearings and dirt and debris out. When rebuilding a pump, check that th...

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    $0.00 - $0.00
    $0.00
    $20.00
    $20.00 - $20.00
    $20.00
  • Internal Seal Kit with Spring for Spray Head Valve UnitedBuilt BC2403 - UnitedBuilt Equipment
    15 in stock

    Internal Seal Kit with Spring for Spray Head Valve UnitedBuilt BC2403

    UnitedBuilt
    $121.32 - $121.32
    $121.32
    $121.32
    $121.32 - $121.32
    $121.32

    Internal Seal Kit with Spring for Spray Head Valve UnitedBuilt BC2403

    $121.32 - $121.32
    $121.32
    $121.32
    $121.32 - $121.32
    $121.32
  • 3" Valve Diaphragm, 1/8" x 5/8" x 6 1/4", UnitedBuilt K383 - UnitedBuilt Equipment
    132 in stock

    3" Valve Diaphragm, 1/8" x 5/8" x 6 1/4", UnitedBuilt K383

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $6.66
    $6.66 - $6.66
    $6.66

    $0.00 - $0.00
    $0.00
    $6.66
    $6.66 - $6.66
    $6.66
  • Inline Control Valve, Air-to-Close, 3" FNPT, Cast Iron, UnitedBuilt AV5293 - UnitedBuilt Equipment
    0 in stock. Available on backorder

    Inline Control Valve, Air-to-Close, 3" FNPT, Cast Iron, UnitedBuilt AV5293

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $300.00
    $300.00 - $300.00
    $300.00

    UnitedBuilt Inline Control Valve, Air Operated, 3" Inline, Female NPT Find the internal repair kit here.

    $0.00 - $0.00
    $0.00
    $300.00
    $300.00 - $300.00
    $300.00