Skip to content
Closed Dec 23–27 for the holidays 🎄. Orders ship Dec 30. Wishing you a joyful holiday season!
Closed Dec 23–27 for the holidays 🎄. Orders ship Dec 30. Wishing you a joyful holiday season!

Water Pumps & Parts

At our warehouse, you'll find a wide variety of high-quality water truck pumps and replacement parts to meet all your specifications. Whether you need to replace an existing pump, build a new water truck, or repair your old one, we have the parts you need, including impellers, shaft kits, and volutes.

Not sure which pump is right for you? Our team has over 75 years of industry experience and is here to help. Just give us a call or use the chat box to get in touch. If you have any questions or can't find the part you're looking for, don't hesitate to call us at 602-253-7739. We're here to help you find the right parts for your water trucks.

Water Pumps & Parts - UnitedBuilt Equipment

Filters

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

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

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $1,336.00
    $1,336.00 - $1,336.00
    $1,336.00

    UnitedBuilt Centrifugal Water Pump B68416MS Grooved Suction and Discharge 4" Suction 3" Discharge UnitedBuilt M3ZRMS Counter-Clockwise (CCW) 4x3 ...

    View full details
    $0.00 - $0.00
    $0.00
    $1,336.00
    $1,336.00 - $1,336.00
    $1,336.00
  • Volute Gasket, 4x3, UnitedBuilt M3Z S05126MS - UnitedBuilt Equipment
    129 in stock

    Volute Gasket, 4x3, UnitedBuilt M3Z S05126MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $11.50
    $11.50 - $11.50
    $11.50

    UnitedBuilt Volute Gasket 4 x 3 (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
    $11.50
    $11.50 - $11.50
    $11.50
  • 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 %
    51 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...

    View full details
    $101.72
    $101.72 - $101.72
    $101.72
    $96.63
    $96.63 - $96.63
    $96.63
    Save 5% Save %
  • Water Pump, Cast Iron, 4x3, Clockwise (CW), Grooved Ends, Mechanical Seal, UnitedBuilt M3ZRMS B68417MS - UnitedBuilt Equipment
    Water Pump, Cast Iron, 4x3, Clockwise (CW), Grooved Ends, Mechanical Seal, UnitedBuilt M3ZRMS B68417MS - UnitedBuilt Equipment

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

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $1,311.00
    $1,311.00 - $1,311.00
    $1,311.00

    UnitedBuilt Centrifugal Water Truck Pump B68417MS Grooved Suction and Discharge 4" Suction 3" Discharge UnitedBuilt M3ZRMS Clockwise (CW) 4x3 mec...

    View full details
    $0.00 - $0.00
    $0.00
    $1,311.00
    $1,311.00 - $1,311.00
    $1,311.00
  • Rope Packing Set (6 Pieces), UnitedBuilt M3ZRM S14022MS - UnitedBuilt Equipment
    79 in stock

    Rope Packing Set (6 Pieces), 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
  • Shaft Kit, Mechanical Seal, CCW, UnitedBuilt B80697MS - UnitedBuilt Equipment
    Shaft Kit, Mechanical Seal, CCW, UnitedBuilt B80697MS - UnitedBuilt Equipment
    47 in stock

    Shaft Kit, Mechanical Seal, CCW, UnitedBuilt B80697MS

    UnitedBuilt
    $245.95 - $245.95
    $245.95
    $245.95
    $245.95 - $245.95
    $245.95

    UnitedBuilt B80697MS Shaft Kit for M3ZRMS CCW mechanical seal pump. Manufactured in the USA of high-quality materials with precision machining. Di...

    View full details
    $245.95 - $245.95
    $245.95
    $245.95
    $245.95 - $245.95
    $245.95
  • Hydraulic Coupler 7/8" Spline 13 Tooth, (Key Sold Separately) UnitedBuilt S30636MS - UnitedBuilt Equipment
    Hydraulic Coupler 7/8" Spline 13 Tooth, (Key Sold Separately) UnitedBuilt S30636MS - UnitedBuilt Equipment
    49 in stock

    Hydraulic Coupler 7/8" Spline 13 Tooth, (Key Sold Separately) UnitedBuilt S30636MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $270.00
    $270.00 - $270.00
    $270.00

    Hydraulic Coupler 7/8" Spline 13 Tooth, (Key Sold Separately) UnitedBuilt S30636MS

    $0.00 - $0.00
    $0.00
    $270.00
    $270.00 - $270.00
    $270.00
  • 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 %
    59 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...

    View full details
    $78.20
    $78.20 - $78.20
    $78.20
    $74.29
    $74.29 - $74.29
    $74.29
    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
    36 in stock

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

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $886.80
    $886.80 - $886.80
    $886.80

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

    View full details
    $0.00 - $0.00
    $0.00
    $886.80
    $886.80 - $886.80
    $886.80
  • 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
    20 in stock

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

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $933.00
    $933.00 - $933.00
    $933.00

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

    View full details
    $0.00 - $0.00
    $0.00
    $933.00
    $933.00 - $933.00
    $933.00
  • Water Pump, Cast Iron, 4X3, Counter Clockwise (CCW), Grooved Ends, Rope Packing Seal, UnitedBuilt M3ZRM B66895MS - UnitedBuilt Equipment
    Water Pump, Cast Iron, 4X3, Counter Clockwise (CCW), Grooved Ends, Rope Packing Seal, UnitedBuilt M3ZRM B66895MS - UnitedBuilt Equipment

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

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $1,289.55
    $1,289.55 - $1,289.55
    $1,289.55

    UnitedBuilt Centrifugal Water Pump B66895MS Grooved Suction and Discharge 4" Suction 3" Discharge UnitedBuilt M3ZRMS Counter-Clockwise (CCW) 4x3 ...

    View full details
    $0.00 - $0.00
    $0.00
    $1,289.55
    $1,289.55 - $1,289.55
    $1,289.55
  • 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

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

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $1,290.00
    $1,290.00 - $1,290.00
    $1,290.00

    UnitedBuilt Centrifugal Water Pump B66899MS Grooved Suction and Discharge 4" Suction 3" Discharge UnitedBuilt M3ZRM Clockwise (CW) 4x3 rope packi...

    View full details
    $0.00 - $0.00
    $0.00
    $1,290.00
    $1,290.00 - $1,290.00
    $1,290.00
  • Hex Nut, Brass, 3/8-16, (2 Required for Packing Gland), UnitedBuilt M3ZRM S23343MS - UnitedBuilt Equipment
    Hex Nut, Brass, 3/8-16, (2 Required for Packing Gland), UnitedBuilt M3ZRM S23343MS - UnitedBuilt Equipment
    490 in stock

    Hex Nut, Brass, 3/8-16, (2 Required for Packing Gland), UnitedBuilt M3ZRM S23343MS

    UnitedBuilt
    $1.50 - $1.50
    $1.50
    $1.50 - $1.50
    $1.50

    Hex Nut, Brass, 3/8-16 S23343

    $1.50 - $1.50
    $1.50
    $1.50 - $1.50
    $1.50
  • Volute, Cast Iron, 4x3, Counter Clockwise (CCW), Grooved Ends, UnitedBuilt M3Z H04041MS - UnitedBuilt Equipment
    29 in stock

    Volute, Cast Iron, 4x3, Counter Clockwise (CCW), Grooved Ends, UnitedBuilt M3Z H04041MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $402.75
    $402.75 - $402.75
    $402.75

    UnitedBuilt Volute CCW Groove (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
    $402.75
    $402.75 - $402.75
    $402.75
  • Slinger Water 1-3/32 ID, UnitedBuilt M3Z S12260MS - UnitedBuilt Equipment
    130 in stock

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

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $2.59
    $2.59 - $2.59
    $2.59

    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
    $2.59
    $2.59 - $2.59
    $2.59
  • Grease Cap, UnitedBuilt M3ZRM(S) S19033MS - UnitedBuilt Equipment
    Grease Cap, UnitedBuilt M3ZRM(S) S19033MS - UnitedBuilt Equipment
    59 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...

    View full details
    $0.00 - $0.00
    $0.00
    $20.00
    $20.00 - $20.00
    $20.00
  • Impeller, Cast Iron, Counter Clockwise (CCW), UnitedBuilt M3Z M02181MS - UnitedBuilt Equipment
    Impeller, Cast Iron, Counter Clockwise (CCW), UnitedBuilt M3Z M02181MS - UnitedBuilt Equipment
    25 in stock

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

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $270.00
    $270.00 - $270.00
    $270.00

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

    $0.00 - $0.00
    $0.00
    $270.00
    $270.00 - $270.00
    $270.00
  • Shaft Kit Rope Packing CW UnitedBuilt B80698MS - UnitedBuilt Equipment
    Shaft Kit Rope Packing CW UnitedBuilt B80698MS - UnitedBuilt Equipment
    31 in stock

    Shaft Kit Rope Packing CW UnitedBuilt B80698MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $234.90
    $234.90 - $234.90
    $234.90

    UnitedBuilt B80698MS Shaft Kit for M3ZRM CW rope packing pump. Manufactured in the USA of high-quality materials with precision machining. Direct ...

    View full details
    $0.00 - $0.00
    $0.00
    $234.90
    $234.90 - $234.90
    $234.90
  • Hydraulic Adapter Bracket & Coupling Aftermarket B07779 - UnitedBuilt Equipment
    Hydraulic Adapter Bracket & Coupling Aftermarket B07779 - UnitedBuilt Equipment
    Save 2% Save %
    10 in stock

    Hydraulic Adapter Bracket & Coupling Aftermarket B07779

    UnitedBuilt Choice
    $533.50
    $533.50 - $533.50
    $533.50
    $522.83
    $522.83 - $522.83
    $522.83

    Hydraulic Adapter Bracket & Coupling Aftermarket B07779

    $533.50
    $533.50 - $533.50
    $533.50
    $522.83
    $522.83 - $522.83
    $522.83
    Save 2% Save %
  • Hydraulic Adapter Bracket SAEB for B3ZRM(S) Pumps, Aluminum, ARMS A-789 - UnitedBuilt Equipment
    10 in stock

    Hydraulic Adapter Bracket SAEB for B3ZRM(S) Pumps, Aluminum, ARMS A-789 (Replaces B07779)

    ARMS
    $0.00 - $0.00
    $0.00
    $262.50
    $262.50 - $262.50
    $262.50

    Hydraulic Adapter Bracket SAEB for B3ZRM(S) Pumps, Aluminum, ARMS A-789 (Replaces B07779)

    $0.00 - $0.00
    $0.00
    $262.50
    $262.50 - $262.50
    $262.50
  • Water Pump, CW Self Priming, Mechanical Seal, 4x4 FNPT, Hydraulic Drive, B4ZRKS, Aftermarket B69876 - UnitedBuilt Equipment
    Save 4% Save %
    3 in stock

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

    ATP
    $2,304.50
    $2,304.50 - $2,304.50
    $2,304.50
    $2,205.50
    $2,205.50 - $2,205.50
    $2,205.50

    Water Pump, Self-Priming 4x4, Mechanical Seal, B4ZRKS, Aftermarket Shop repair parts 

    $2,304.50
    $2,304.50 - $2,304.50
    $2,304.50
    $2,205.50
    $2,205.50 - $2,205.50
    $2,205.50
    Save 4% Save %
  • Water Truck Pump, Clockwise (CW), Rope Packing Seal, 4x3 Threaded FNPT, B3ZRM, 1-1/2" Shaft x 3/8" Key, ATP B86070 - UnitedBuilt Equipment
    Water Truck Pump, Clockwise (CW), Rope Packing Seal, 4x3 Threaded FNPT, B3ZRM, 1-1/2" Shaft x 3/8" Key, ATP B86070 - UnitedBuilt Equipment
    6 in stock

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

    ATP
    $0.00 - $0.00
    $0.00
    $1,194.60
    $1,194.60 - $1,194.60
    $1,194.60

    The ATP B3Z-HD is a heavy-duty centrifugal water pump with a threaded suction and discharge side. Its 11⁄2″ shaft and keyed impeller make it strong...

    View full details
    $0.00 - $0.00
    $0.00
    $1,194.60
    $1,194.60 - $1,194.60
    $1,194.60
  • Packing Split Gland, Cast Iron, UnitedBuilt M3ZRM B82468MS - UnitedBuilt Equipment
    Packing Split Gland, Cast Iron, UnitedBuilt M3ZRM B82468MS - UnitedBuilt Equipment
    40 in stock

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

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $55.00
    $55.00 - $55.00
    $55.00

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

    $0.00 - $0.00
    $0.00
    $55.00
    $55.00 - $55.00
    $55.00
  • Bolt, Square Head, 3/8"-16 x 2-1/2", (2 Required for Packing Gland), UnitedBuilt M3ZRM S23762MS - UnitedBuilt Equipment
    517 in stock

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

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

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

    $6.68 - $6.68
    $6.68
    $6.68 - $6.68
    $6.68

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare