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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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147 in stock
Hydraulic 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 $270.00| /Hydraulic 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| / -
4 in stock
Hydraulic Motor, SAEB, 1-1/2" (1.5") Gear, 3/4" ORB, Shaft 7/8" x 13 Tooth, Bidirectional, Permco M2100A786ADDE15-14
PermcoOriginal price $0.00 - Original price $0.00Original price $0.00$798.00$798.00 - $798.00Current price $798.00| /Hydraulic Motor Bi-Directional 1-1/2" Gear 1-1/2" Gear SAEB 3/4" ORB 13 Tooth 7/8" Shaft Features & Benefits Rugged doweled construction Hig...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$798.00$798.00 - $798.00Current price $798.00| / -
7 in stock
Replacement 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 $20.83| /Buyers 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| / -
5 in stock
Hydraulic Pump Bi-Directional, 2" Gear, SAEB, 1-1/4" ORB, Shaft 7/8" x 13-Tooth, Permco P3040A286NMZA20-14
PermcoOriginal price $0.00 - Original price $0.00Original price $0.00$853.00$853.00 - $853.00Current price $853.00| /Hydraulic Pump Bi-Directional 2" Gear 2" Gear SAEB 1-1/4" ORB 13 Tooth 7/8" Shaft Features & Benefits Rugged doweled construction High press...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$853.00$853.00 - $853.00Current price $853.00| / -
12 in stock
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 $528.22| /Berkeley 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 $528.22| /Save 2% Save % -
6 in stock
Relief Valve, Adjustable Ball Spring Relief, #10SAE Ports, 1500 PSI, Brand Hydraulics RL10-1500
Brand HydraulicsOriginal price $0.00 - Original price $0.00Original price $0.00$128.00$128.00 - $128.00Current price $128.00| /The Brand Hydraulics RL10-1500 Pressure Relief Valve is a compact, adjustable hydraulic valve designed to protect systems from overpressure by limi...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$128.00$128.00 - $128.00Current price $128.00| / -
7 in stock
Hydraulic Pump Bi-Directional, 1-3/4" Gear, SAEB, 1-1/4" ORB, Shaft 7/8" x 13 Tooth, Permco P3040A286NMZA17-14
PermcoOriginal price $0.00 - Original price $0.00Original price $0.00$839.00$839.00 - $839.00Current price $839.00| /Hydraulic Pump Bi-Directional 1-3/4" Gear 1-3/4" Gear SAEB 1-1/4" ORB 13 Tooth 7/8" Shaft Features & Benefits Rugged doweled construction Hi...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$839.00$839.00 - $839.00Current price $839.00| / -
5 in stock
Hydraulic 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 $765.00| /Buyers 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 stock
Hydraulic 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 $465.00| /Buyers 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| / -
9 in stock
Hydraulic 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 $215.00| /Original 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 $445.00| /Tough, 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 $445.00| /Save 31% Save % -
0 in stock. Available on backorder
Valve, 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 $153.00| /The 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| / -
10 in stock
Hydraulic Fitting, 16 MJICX 12 ORB, 6400-16-12-O
UnitedBuilt ChoiceOriginal price $0.00 - Original price $0.00Original price $0.00$7.00$7.00 - $7.00Current price $7.00| /Original price $0.00 - Original price $0.00Original price $0.00$7.00$7.00 - $7.00Current price $7.00| / -
20 in stock
Hydraulic Fitting, Gates Coupling, 4G-4FJX90S
GatesOriginal price $0.00 - Original price $0.00Original price $0.00$30.00$30.00 - $30.00Current price $30.00| /Product 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| / -
98 in stock
Hydraulic Fitting, Gates Coupling, 12G-12FJX
GatesOriginal price $0.00 - Original price $0.00Original price $0.00$33.00$33.00 - $33.00Current price $33.00| /The 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| / -
3 in stock
Hydraulic Fitting, Gates Coupling, 3/4 CRIMP X 12 MJIC 90, 12G-12FJX90S
GatesOriginal price $0.00 - Original price $0.00Original price $0.00$70.00$70.00 - $70.00Current price $70.00| /The 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, 12 MJICX 12 ORB, 6400-12-12-O
UnitedBuilt ChoiceOriginal price $0.00 - Original price $0.00Original price $0.00$5.00$5.00 - $5.00Current price $5.00| /The 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 $12.50| /Here’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 Male NPTF, Steel, 2404-12-12
UnitedBuilt ChoiceOriginal price $0.00 - Original price $0.00Original price $0.00$5.92$5.92 - $5.92Current price $5.92| /Hydraulic 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$5.92$5.92 - $5.92Current price $5.92| / -
20 in stock
Oil 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 $20.75| /Original price $0.00 - Original price $0.00Original price $0.00$20.75$20.75 - $20.75Current price $20.75| / -
0 in stock. Available on backorder
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 $487.00| /Hydraulic 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 $487.00| /Save 13% Save % -
0 in stock. Available on backorder
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 % -
7 in stock
Hydraulic 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 $45.16| /The 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| / -
16 in stock
Hydraulic 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 $43.70| /The 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| /