Skip to content
Water Truck Parts: In Stock, Top Quality, Ships in 1 Day! Order by 2PM MST.
Water Truck Parts: In Stock, Top Quality, Ships in 1 Day! Order by 2PM MST.

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
    141 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
  • 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
    $1,336.00
    $1,336.00 - $1,336.00
    $1,336.00

    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
    $1,336.00
    $1,336.00 - $1,336.00
    $1,336.00
  • 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
  • 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
    74 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
  • 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
  • Shaft Kit, Mechanical Seal, CCW, UnitedBuilt B80697MS - UnitedBuilt Equipment
    Shaft Kit, Mechanical Seal, CCW, UnitedBuilt B80697MS - UnitedBuilt Equipment
    0 in stock. Available on backorder

    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
  • 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
    11 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
  • Volute, Cast Iron, 4x3, Counter Clockwise (CCW), Grooved Ends, UnitedBuilt M3Z H04041MS - UnitedBuilt Equipment
    12 in stock

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

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $400.00
    $400.00 - $400.00
    $400.00

    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
    $400.00
    $400.00 - $400.00
    $400.00
  • 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
    26 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
  • Slinger Water 1-3/32 ID, UnitedBuilt M3Z S12260MS - UnitedBuilt Equipment
    144 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
    86 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
    0 in stock. Available on backorder

    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
    0 in stock. Available on backorder

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

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

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $360.00
    $360.00 - $360.00
    $360.00

    UnitedBuilt Volute CW 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
    $360.00
    $360.00 - $360.00
    $360.00
  • Retaining Ring, External, Stainless Steel, 1-1/8" Shaft, UnitedBuilt S23009MS - UnitedBuilt Equipment
    82 in stock

    Retaining Ring, External, Stainless Steel, 1-1/8" Shaft, UnitedBuilt S23009MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $5.65
    $5.65 - $5.65
    $5.65

    Retaining Ring, External, Stainless Steel 1-1/8" Shaft, Rotor Clip SH-112SS External Rings fit into the groove of a shaft. The portion of the ring ...

    View full details
    $0.00 - $0.00
    $0.00
    $5.65
    $5.65 - $5.65
    $5.65
  • Shaft Sleeve, Stainless Steel, M3ZRM(S) UnitedBuilt S39242MS - UnitedBuilt Equipment
    33 in stock

    Shaft Sleeve, Stainless Steel, M3ZRM(S) UnitedBuilt S39242MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $71.50
    $71.50 - $71.50
    $71.50

    UnitedBuilt Shaft Sleeve, Stainless Steel for B3Z & B4Z pumps. Not sure if it fits? Call us at 602-253-7739 or send us a message in our chat. N...

    View full details
    $0.00 - $0.00
    $0.00
    $71.50
    $71.50 - $71.50
    $71.50
  • Shaft Kit Rope Packing CCW UnitedBuilt B80696MS - UnitedBuilt Equipment
    Shaft Kit Rope Packing CCW UnitedBuilt B80696MS - UnitedBuilt Equipment
    0 in stock. Available on backorder

    Shaft Kit Rope Packing CCW UnitedBuilt B80696MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $240.30
    $240.30 - $240.30
    $240.30

    UnitedBuilt B80696MS Shaft Kit for M3ZRM CCW rope packing pump. Manufactured in the USA of high-quality materials with precision machining. Direct...

    View full details
    $0.00 - $0.00
    $0.00
    $240.30
    $240.30 - $240.30
    $240.30
  • Powerhead, Cast Iron, 4x3, Clockwise (CW), Rope Packing Seal, UnitedBuilt M3ZRM B85552MS - UnitedBuilt Equipment
    Powerhead, Cast Iron, 4x3, Clockwise (CW), Rope Packing Seal, UnitedBuilt M3ZRM B85552MS - UnitedBuilt Equipment
    18 in stock

    Powerhead, Cast Iron, 4x3, Clockwise (CW), Rope Packing Seal, UnitedBuilt M3ZRM B85552MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $870.00
    $870.00 - $870.00
    $870.00

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

    View full details
    $0.00 - $0.00
    $0.00
    $870.00
    $870.00 - $870.00
    $870.00
  • Powerhead, Cast Iron, 4x3, Clockwise (CW), Mechanical Seal, UnitedBuilt M3ZRMS B85550MS - UnitedBuilt Equipment
    Powerhead, Cast Iron, 4x3, Clockwise (CW), Mechanical Seal, UnitedBuilt M3ZRMS B85550MS - UnitedBuilt Equipment
    15 in stock

    Powerhead, Cast Iron, 4x3, Clockwise (CW), Mechanical Seal, UnitedBuilt M3ZRMS B85550MS

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

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

    View full details
    $0.00 - $0.00
    $0.00
    $933.00
    $933.00 - $933.00
    $933.00
  • Impeller, Cast Iron, Clockwise (CW), UnitedBuilt M3Z M02153MS - UnitedBuilt Equipment
    Impeller, Cast Iron, Clockwise (CW), UnitedBuilt M3Z M02153MS - UnitedBuilt Equipment
    0 in stock. Available on backorder

    Impeller, Cast Iron, Clockwise (CW), UnitedBuilt M3Z M02153MS

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

    UnitedBuilt threaded Clock Wise (CW) 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 Mechseal B4ZRKS CW UnitedBuilt B80703MS - UnitedBuilt Equipment
    Shaft Kit Mechseal B4ZRKS CW UnitedBuilt B80703MS - UnitedBuilt Equipment
    2 in stock

    Shaft Kit Mechseal B4ZRKS CW UnitedBuilt B80703MS

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

    Shaft Kit Mechseal B4ZRKS CW UnitedBuilt B80703MS

    $0.00 - $0.00
    $0.00
    $300.00
    $300.00 - $300.00
    $300.00
  • Countersunk Plug, Hex Socket, 1/8" MNPT, Vibra Seal, Brass (3153X2) - UnitedBuilt Equipment
    327 in stock

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

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

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

    $0.94 - $0.94
    $0.94
    $0.94 - $0.94
    $0.94
  • 6 in stock

    Thrust Ring 1-3/16 ID 1-9/16 OD, UnitedBuilt S29218MS

    UnitedBuilt
    $0.00 - $0.00
    $0.00
    $45.40
    $45.40 - $45.40
    $45.40

    UnitedBuilt Shaft Thrust Ring (B3Z) 1-3/16" ID 1-9/16" OD 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
    $45.40
    $45.40 - $45.40
    $45.40

Compare products

0 of 3 items selected

Select first item to compare

Select second item to compare

Select third item to compare

Compare