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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.
Filters
- Ball Bearing (1)
- Bearing Cap (2)
- Bolt (1)
- Hex Capscrew (2)
- Hydraulic Adapter Bracket (2)
- Hydraulic Coupler (1)
- Impeller (4)
- Lock Nut (2)
- Mechanical Seal (1)
- Nut (1)
- Plug (2)
- Power Head (1)
- Powerhead (1)
- Rope Packing (1)
- Shaft Kit (8)
- Shaft Sleeve (1)
- Volute (2)
- Water Pump Grease (1)
- Water Pump Parts (27)
- Water Pump Seal Kit (2)
- Water Truck Pump (24)
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1 in stock
Elastomer Hub Coupling 10" 1-3/8"-10T Vulkan, Berkeley B85403
BerkeleyOriginal price $1,435.00Original price $1,435.00 - Original price $1,435.00Original price $1,435.00Current price $950.00$950.00 - $950.00Current price $950.00| /Original price $1,435.00Original price $1,435.00 - Original price $1,435.00Original price $1,435.00Current price $950.00$950.00 - $950.00Current price $950.00| /Save 34% Save % -
1 in stock
Shaft Ftt Franklin (PUMPW305454015)
FranklinOriginal price $2,635.00Original price $2,635.00 - Original price $2,635.00Original price $2,635.00Current price $2,016.00$2,016.00 - $2,016.00Current price $2,016.00| /Shaft Ftt Franklin (PUMPW305454015)
Original price $2,635.00Original price $2,635.00 - Original price $2,635.00Original price $2,635.00Current price $2,016.00$2,016.00 - $2,016.00Current price $2,016.00| /Save 23% Save % -
2 in stock
Ball Bearing Ftt Franklin (PUMPW305463036)
FranklinOriginal price $0.00 - Original price $0.00Original price $0.00$420.00$420.00 - $420.00Current price $420.00| /Ball Bearing Ftt Franklin (PUMPW305463036)
Original price $0.00 - Original price $0.00Original price $0.00$420.00$420.00 - $420.00Current price $420.00| / -
3 in stock
Seal, Oil, Clipper, 1-15/16" SFT, Berkeley S14764
BerkeleyOriginal price $194.00Original price $194.00 - Original price $194.00Original price $194.00Current price $130.00$130.00 - $130.00Current price $130.00| /Seal, Oil, Clipper, 1-15/16" SFT, Berkeley S14764
Original price $194.00Original price $194.00 - Original price $194.00Original price $194.00Current price $130.00$130.00 - $130.00Current price $130.00| /Save 33% Save % -
0 in stock. Available on backorder
Bearing, Roller AFBMA 50RK32, 1.9685" ID 3, Berkeley S15604
BerkeleyOriginal price $703.00Original price $703.00 - Original price $703.00Original price $703.00Current price $499.00$499.00 - $499.00Current price $499.00| /Bearing, Roller AFBMA 50RK32, 1.9685" ID 3, Berkeley S15604
Original price $703.00Original price $703.00 - Original price $703.00Original price $703.00Current price $499.00$499.00 - $499.00Current price $499.00| /Save 29% Save % -
10 in stock
Spacer Impeller Hub 7/8ID 1-1/8"OD (PUMPBS15405)
BerkeleyOriginal price $36.00Original price $36.00 - Original price $36.00Original price $36.00Current price $20.60$20.60 - $20.60Current price $20.60| /Impeller spacer Hub 7/8" ID x 1-1/8" OD Berkeley S15405
Original price $36.00Original price $36.00 - Original price $36.00Original price $36.00Current price $20.60$20.60 - $20.60Current price $20.60| /Save 43% Save % -
1 in stock
Hydraulic Drive Kit with Bracket, Coupling and Fasteners, 5" B Fit, for XS-439, Franklin 305731905
FranklinOriginal price $1,481.00Original price $1,481.00 - Original price $1,481.00Original price $1,481.00Current price $1,110.00$1,110.00 - $1,110.00Current price $1,110.00| /Original price $1,481.00Original price $1,481.00 - Original price $1,481.00Original price $1,481.00Current price $1,110.00$1,110.00 - $1,110.00Current price $1,110.00| /Save 25% Save % -
0 in stock. Available on backorder
Water Truck Pump, CW Self Priming, Mechanical Seal, 4x4 FNPT, Hydraulic Drive, B4ZRKS, Berkeley B69876
BerkeleyOriginal price $0.00 - Original price $0.00Original price $0.00$3,700.00$3,700.00 - $3,700.00Current price $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...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$3,700.00$3,700.00 - $3,700.00Current price $3,700.00| / -
1 in stock
Wear Plate FMIH40, Franklin 305455009
FranklinOriginal price $775.00Original price $775.00 - Original price $775.00Original price $775.00Current price $592.00$592.00 - $592.00Current price $592.00| /Original price $775.00Original price $775.00 - Original price $775.00Original price $775.00Current price $592.00$592.00 - $592.00Current price $592.00| /Save 24% Save % -
3 in stock
Retaining Ring, Mechanical Seal XS-439, Franklin 305462028
FranklinOriginal price $57.00Original price $57.00 - Original price $57.00Original price $57.00Current price $45.00$45.00 - $45.00Current price $45.00| /Retaining Ring, Mechanical Seal XS-439, Franklin 305462028
Original price $57.00Original price $57.00 - Original price $57.00Original price $57.00Current price $45.00$45.00 - $45.00Current price $45.00| /Save 21% Save % -
2 in stock
Set Screw (2 Pack) FMIH-40 Fanklin, 305463075
FranklinOriginal price $21.27Original price $21.27 - Original price $21.27Original price $21.27Current price $16.25$16.25 - $16.25Current price $16.25| /Original price $21.27Original price $21.27 - Original price $21.27Original price $21.27Current price $16.25$16.25 - $16.25Current price $16.25| /Save 24% Save % -
2 in stock
Lip Seal Drive Side 439M, Franklin 305463184
FranklinOriginal price $108.00Original price $108.00 - Original price $108.00Original price $108.00Current price $82.75$82.75 - $82.75Current price $82.75| /Original price $108.00Original price $108.00 - Original price $108.00Original price $108.00Current price $82.75$82.75 - $82.75Current price $82.75| /Save 23% Save % -
1 in stock
Hydraulic Adapter Mounting Bracket, Franklin 305455017
FranklinOriginal price $729.00Original price $729.00 - Original price $729.00Original price $729.00Current price $557.00$557.00 - $557.00Current price $557.00| /Original price $729.00Original price $729.00 - Original price $729.00Original price $729.00Current price $557.00$557.00 - $557.00Current price $557.00| /Save 24% Save % -
2 in stock
Impeller Washer, MIH40 FMIT, Franklin 305455015
FranklinOriginal price $0.00 - Original price $0.00Original price $0.00$67.00$67.00 - $67.00Current price $67.00| /Original price $0.00 - Original price $0.00Original price $0.00$67.00$67.00 - $67.00Current price $67.00| / -
3 in stock
Gasket Blind Flange, Berkeley S10364
BerkeleyOriginal price $29.00Original price $29.00 - Original price $29.00Original price $29.00Current price $16.75$16.75 - $16.75Current price $16.75| /Original price $29.00Original price $29.00 - Original price $29.00Original price $29.00Current price $16.75$16.75 - $16.75Current price $16.75| /Save 42% 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
BerkeleyOriginal price $16,513.00Original price $16,513.00 - Original price $16,513.00Original price $16,513.00Current price $8,050.00$8,050.00 - $8,050.00Current price $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 detailsOriginal price $16,513.00Original price $16,513.00 - Original price $16,513.00Original price $16,513.00Current price $8,050.00$8,050.00 - $8,050.00Current price $8,050.00| /Save 51% 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
BerkeleyOriginal price $14,899.00Original price $14,899.00 - Original price $14,899.00Original price $14,899.00Current price $7,449.00$7,449.00 - $7,449.00Current price $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 detailsOriginal price $14,899.00Original price $14,899.00 - Original price $14,899.00Original price $14,899.00Current price $7,449.00$7,449.00 - $7,449.00Current price $7,449.00| /Save 50% Save % -
2 in stock
Water Truck Pump B4ERBMS, 5" Suction x 4" Discharge Flanged, Clockwise (CW), Mechanical Seal, Berkeley B73023
BerkeleyOriginal price $12,861.00Original price $12,861.00 - Original price $12,861.00Original price $12,861.00Current price $6,400.00$6,400.00 - $6,400.00Current price $6,400.00| /The Berkeley OEM B73023 Water Truck Pump (Model B4ERBMS) is a heavy-duty, frame-mounted centrifugal pump designed for high-volume water transfer in...
View full detailsOriginal price $12,861.00Original price $12,861.00 - Original price $12,861.00Original price $12,861.00Current price $6,400.00$6,400.00 - $6,400.00Current price $6,400.00| /Save 50% Save % -
0 in stock. Available on backorder
Hex Capscrew 3/8-16 x 7/8" S26825
UnitedBuiltOriginal price $0.00 - Original price $0.00Original price $0.00$2.83$2.83 - $2.83Current price $2.83| /Hex Capscrew, Grade 5, Zinc Plated, 3/8-16 x 7/8"
Original price $0.00 - Original price $0.00Original price $0.00$2.83$2.83 - $2.83Current price $2.83| / -
4630 in stock
Hex Capscrew 3/8-16 x 1" (PUMPBS26826)
UnitedBuiltOriginal price $2.83 - Original price $2.83Original price$2.83$2.83 - $2.83Current price $2.83| /Hex Capscrew, Grade 5, Zinc Plated, 3/8-16 x 1"
Original price $2.83 - Original price $2.83Original price$2.83$2.83 - $2.83Current price $2.83| / -
2 in stock
Pump Bracket Frame M3ZRMS Mechanical Seal, UnitedBuilt H04007MS
UnitedBuiltOriginal price $0.00 - Original price $0.00Original price $0.00$473.25$473.25 - $473.25Current price $473.25| /UnitedBuilt Mechanical Seal Bearing Frame (M3ZRMS) Not sure if it fits? Call us at 602-253-7739 or send us a message in our chat.
Original price $0.00 - Original price $0.00Original price $0.00$473.25$473.25 - $473.25Current price $473.25| / -
2 in stock
Pump Bracket Frame M3ZRM Ropeseal, UnitedBuilt H00553MS
UnitedBuiltOriginal price $0.00 - Original price $0.00Original price $0.00$473.25$473.25 - $473.25Current price $473.25| /UnitedBuilt Bearing Frame Rope Seal (M3ZRM) Not sure if it fits? Call us at 602-253-7739 or send us a message in our chat.
Original price $0.00 - Original price $0.00Original price $0.00$473.25$473.25 - $473.25Current price $473.25| /