April 21, 2026
Shop Hydraulic Components by Equipment, Brand or Application
Union Hydraulics supplies aftermarket hydraulic cylinders, pumps, motors, valves, fittings, seal kits, O-ring kits, and replacement components for construction, agricultural, material handling, logging, refuse, dump truck, and industrial equipment.
Shop by hydraulic component, equipment brand, or application. Replacement parts are available for Bobcat®, CASE®, CAT®, John Deere®, Kubota®, Takeuchi®, Young®, Magister®, and other equipment manufacturers.
Not sure which part fits your machine? Contact our hydraulic product support team with the equipment model, existing part number, measurements, or photos, and we will help you identify the correct replacement.
Shop Replacement Parts by Brand
Shop aftermarket hydraulic cylinders, seal kits, couplings, fittings, and replacement components from established hydraulic and heavy-equipment brands.
Featured Hydraulic Products
Shop a selection of popular hydraulic cylinders, fittings, seal kits, pumps, motors, and replacement components for mobile and industrial equipment.
587V517 Rotary Union Seal Kit
$262.30
Hydraulic gear pump replacement for Bobcat BC 6650678
$240.75
$175.51
Hydraulic Knowledge Center
Explore practical hydraulic guides, product comparisons, sizing information, and troubleshooting resources to help you select, install, and maintain the right components.
Need Help Finding the Right Hydraulic Part?
Our team can help you identify the correct hydraulic cylinder, seal kit, fitting, pump, motor, valve, or replacement component for your equipment. Send us the part number, equipment model, measurements, or photos, and we’ll help narrow down the right option.