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Hydraulics
UnitedBuilt offers a wide range of hydraulic components designed to power and support water trucks, construction equipment, and industrial systems. Our selection includes hydraulic pumps and motors, reservoirs, fittings, adapters, and flow control components built for reliable performance in demanding applications.
We stock trusted brands such as Permco hydraulic pumps and motors, Buyers Products hydraulic tanks, and Gates hydraulic fittings, along with high-quality couplings and adapters designed specifically for water truck pump systems.
Whether you’re building a new system or maintaining existing equipment, our hydraulic components are selected for durability, compatibility, and consistent performance in real-world conditions.
All products are in stock and ready for fast shipping, helping you minimize downtime and keep your equipment operating efficiently.
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93 in stockHydraulic Coupler 7/8" Spline 13 Tooth x 1-1/8" Shaft 1/4" Key, (Key Sold Separately) UnitedBuilt S30636MS
UnitedBuiltOriginal price $0.00 - Original price $0.00Original price $0.00$270.00$270.00 - $270.00Current price $270.00Hydraulic Coupler 7/8" Spline 13 Tooth, (Key Sold Separately) UnitedBuilt S30636MS
Original price $0.00 - Original price $0.00Original price $0.00$270.00$270.00 - $270.00Current price $270.00 -
5 in stockReplacement Spring Mount Kit For UR35A, UR50A And UR50S Reservoirs, Buyers UR50MK
BuyersOriginal price $0.00 - Original price $0.00Original price $0.00$20.83$20.83 - $20.83Current price $20.83Buyers Products Replacement Spring Mount Kit for UR50A and UR50S Reservoirs replaces the springs and bolts needed to mount the tanks. Mounting brac...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$20.83$20.83 - $20.83Current price $20.83 -
0 in stock. Available on backorder
Hydraulic Adapter Bracket & Coupling UnitedBuilt B07779
UnitedBuilt ChoiceOriginal price $539.00Original price $539.00 - Original price $539.00Original price $539.00Current price $528.22$528.22 - $528.22Current price $528.22Berkeley Cast Iron Hydraulic Bracket with UnitedBuilt Coupler S30636MS and 1/4" x 1" Key, B07779 UnitedBuilt S30636MS, 7/8" Spline 13 Tooth made in...
View full detailsOriginal price $539.00Original price $539.00 - Original price $539.00Original price $539.00Current price $528.22$528.22 - $528.22Current price $528.22Save 2% -
4 in stockHydraulic Tank 37 Gallon, Steel, Side Mount, Buyers SMR37SQ
BuyersOriginal price $0.00 - Original price $0.00Original price $0.00$765.00$765.00 - $765.00Current price $765.00Buyers 37 Gallon Side Mount Steel Reservoir The 37 Gallon Steel Reservoir from Buyers Products has welded, integral brackets for mounting to the tr...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$765.00$765.00 - $765.00Current price $765.00 -
6 in stockHydraulic Tank 30 Gallon, Steel, Side Mount, Buyers SMR30S
BuyersOriginal price $0.00 - Original price $0.00Original price $0.00$465.00$465.00 - $465.00Current price $465.00Buyers 30 Gallon Side Mount Steel Reservoir The Buyers Products Side-Mounted Steel Reservoir features rugged, HRPO steel construction with a welded...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$465.00$465.00 - $465.00Current price $465.00 -
8 in stockHydraulic Spline Coupler (Coupling) 1-1/4" Spline 14 Tooth, M10176
UnitedBuilt ChoiceOriginal price $0.00 - Original price $0.00Original price $0.00$215.00$215.00 - $215.00Current price $215.00Original price $0.00 - Original price $0.00Original price $0.00$215.00$215.00 - $215.00Current price $215.00 -
1 in stock
Hydraulic Tank 15 Gallon, Steel, Side Mount with Micron Filter, Buyers SMR15SF10
BuyersOriginal price $643.72Original price $643.72 - Original price $643.72Original price $643.72Current price $445.00$445.00 - $445.00Current price $445.00Tough, durable 13 Ga HRPO steel that has been factory powder-coated for corrosion resistance. Pre-drilled for tank-mounted HFA9 series micron filt...
View full detailsOriginal price $643.72Original price $643.72 - Original price $643.72Original price $643.72Current price $445.00$445.00 - $445.00Current price $445.00Save 31% -
25 in stockHydraulic Tank Flange, Filler/Breather Weld Flange Adapter
BuyersOriginal price $0.00 - Original price $0.00Original price $0.00$10.34$10.34 - $10.34Current price $10.34Original price $0.00 - Original price $0.00Original price $0.00$10.34$10.34 - $10.34Current price $10.34 -
2 in stockValve, Flow Control 51-12 SAE, 3/4" SAE ORB (-12), Max Flow 30GPM, Max Pressure 3000 PSI, Brand Hydraulics FC51-12-SAE
Brand HydraulicsOriginal price $0.00 - Original price $0.00Original price $0.00$153.00$153.00 - $153.00Current price $153.00The Brand Hydraulics FC51-12-SAE Flow Control Valve is a reliable, adjustable hydraulic valve designed to regulate flow rate in mobile and industri...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$153.00$153.00 - $153.00Current price $153.00 -
11 in stock
Hydraulic Fitting, Straight Adapter, 16 Male JIC x 12 Male ORB, 6400-16-12-O
UnitedBuilt ChoiceOriginal price $0.00 - Original price $0.00Original price $0.00$7.00$7.00 - $7.00Current price $7.00Original price $0.00 - Original price $0.00Original price $0.00$7.00$7.00 - $7.00Current price $7.00 -
20 in stockHydraulic Fitting, Gates Coupling, 4G-4FJX90S
GatesOriginal price $0.00 - Original price $0.00Original price $0.00$30.00$30.00 - $30.00Current price $30.00Product Description The Gates 4G-4FJX90S MegaCrimp Hydraulic Hose Fitting is a high-performance, 90° elbow coupling designed for secure, leak-free ...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$30.00$30.00 - $30.00Current price $30.00 -
2 in stockHydraulic Fitting, Gates MegaCrimp Coupling, 12 (3/4") Crimp x 12 (3/4") FJIC, 12G-12FJX
GatesOriginal price $0.00 - Original price $0.00Original price $0.00$33.00$33.00 - $33.00Current price $33.00The Gates 12G-12FJX MegaCrimp Hydraulic Hose Fitting is a heavy-duty, straight coupling designed for secure, leak-free performance in hydraulic sys...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$33.00$33.00 - $33.00Current price $33.00 -
2 in stockHydraulic Fitting, Gates MegaCrimp Coupling, 12 (3/4") Crimp x 12 (3/4") FJIC 90, 12G-12FJX90S
GatesOriginal price $0.00 - Original price $0.00Original price $0.00$70.00$70.00 - $70.00Current price $70.00The Gates 12G-12FJX90S MegaCrimp Hydraulic Hose Fitting is a heavy-duty 90° elbow coupling designed for secure, leak-free hydraulic connections in ...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$70.00$70.00 - $70.00Current price $70.00 -
10 in stock
Hydraulic Fitting, Straight Adapter, 12 Male JIC x 12 Male ORB, 6400-12-12-O
UnitedBuilt ChoiceOriginal price $0.00 - Original price $0.00Original price $0.00$5.00$5.00 - $5.00Current price $5.00The 6400-12-12-O Hydraulic Adapter is a heavy-duty straight fitting designed to connect 3/4" Male JIC (37° flare) to 3/4" Male O-Ring Boss (ORB) po...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$5.00$5.00 - $5.00Current price $5.00 -
22 in stock
Hydraulic Fitting, 90 Degree, 12 Male JIC x 12 Male NPT, 2501-12-12
UnitedBuilt ChoiceOriginal price $0.00 - Original price $0.00Original price $0.00$12.50$12.50 - $12.50Current price $12.50Here’s your Shopify-ready listing for the 2501-12-12: Product Title 2501-12-12 Hydraulic Adapter – 3/4" Male NPT x 3/4" Male JIC 37°, Straight Pr...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$12.50$12.50 - $12.50Current price $12.50 -
10 in stock
Hydraulic Fitting, Straight Adapter, Rigid, 12 Male JIC 37° Flare x 12 (3/4") Male NPTF, Steel, 2404-12-12
UnitedBuilt ChoiceOriginal price $0.00 - Original price $0.00Original price $0.00$7.25$7.25 - $7.25Current price $7.25Hydraulic Fitting, Straight Adapter, Rigid, 12 Male JIC 37° Flare x 12 Male NPTF, Steel, 2404-12-12
Original price $0.00 - Original price $0.00Original price $0.00$7.25$7.25 - $7.25Current price $7.25 -
20 in stockOil Level Gauge with Temperature Gauge, Buyers LDR02A
BuyersOriginal price $0.00 - Original price $0.00Original price $0.00$20.75$20.75 - $20.75Current price $20.75Original price $0.00 - Original price $0.00Original price $0.00$20.75$20.75 - $20.75Current price $20.75 -
4 in stock
Hydraulic Coupler *Only* SAE B XS9, Franklin 305462041
FranklinOriginal price $557.00Original price $557.00 - Original price $557.00Original price $557.00Current price $487.00$487.00 - $487.00Current price $487.00Hydraulic Coupler *Only* SAE B XS9, Franklin 305462041
Original price $557.00Original price $557.00 - Original price $557.00Original price $557.00Current price $487.00$487.00 - $487.00Current price $487.00Save 13% -
2 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 $557.00Original price $729.00Original price $729.00 - Original price $729.00Original price $729.00Current price $557.00$557.00 - $557.00Current price $557.00Save 24% -
4 in stockHydraulic Fitting Adapter – 1-1/2" Male NPT x 1-1/2" Female NPT Swivel, 90° Elbow, 1501-24-24
UnitedBuilt ChoiceOriginal price $0.00 - Original price $0.00Original price $0.00$45.16$45.16 - $45.16Current price $45.16The 1501-24-24 Hydraulic Adapter is a heavy-duty 90° elbow swivel fitting designed to connect 1-1/2" Male NPT (MNPT) to 1-1/2" Female NPT (FNPT) co...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$45.16$45.16 - $45.16Current price $45.16 -
14 in stockHydraulic Fitting Adapter – 1-1/2" Male NPT x 1-1/2" Female NPT Swivel, 45° Elbow 1503-24-24
UnitedBuilt ChoiceOriginal price $0.00 - Original price $0.00Original price $0.00$43.70$43.70 - $43.70Current price $43.70The 1503-24-24 Hydraulic Adapter is a heavy-duty 45° elbow swivel fitting designed to connect 1-1/2" Male NPT (MNPT) to 1-1/2" Female NPT (FNPT) co...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$43.70$43.70 - $43.70Current price $43.70 -
8 in stockSight Gauge Plug, Hydraulic Fluid, 1/2 NPTF Brass, Buna-N, LDI LSP151-04-01
LDI IndustriesOriginal price $0.00 - Original price $0.00Original price $0.00$16.94$16.94 - $16.94Current price $16.94The LSP151 Series low pressure brass sight plug has a clear glass sight and male PTF pipe thread connection. Designed to be an economical alternati...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$16.94$16.94 - $16.94Current price $16.94 -
4 in stockHydraulic Tank 35 Gallon, Aluminum, Diamond Tread, Upright Mount, Height 24" x Width 41.75" x Depth 7.95", Buyers UR35A
BuyersOriginal price $0.00 - Original price $0.00Original price $0.00$708.25$708.25 - $708.25Current price $708.25Hydraulic Tank 35 Gallon, Aluminum, Diamond Tread, Upright Mount, Height 24" x Width 41.75" x Depth 7.95", Buyers UR35A
Original price $0.00 - Original price $0.00Original price $0.00$708.25$708.25 - $708.25Current price $708.25 -
0 in stock. Available on backorderValve, Flow Control 51-12 SAE, 3/4" SAE ORB (-12), Max Flow 30GPM, Max Pressure 3000 PSI, Buyers HFDL075SAE
BuyersOriginal price $0.00 - Original price $0.00Original price $0.00$115.00$115.00 - $115.00Current price $115.00The Buyers HFDL075SAE Priority Flow Divider Valve is a heavy-duty hydraulic control valve designed to split and regulate oil flow between two circu...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$115.00$115.00 - $115.00Current price $115.00
