Expert Support
No one knows Monarch DC power systems like Mason Dynamics. For over 40 years, Mason was the exclusive warranty repair facility for all Monarch products. Plus, our veteran staff has over 300 years of combined hydraulic experience. When you buy from Mason, you’re getting a superior American made product and a staff that’s dedicated to offering the best technical service and support in the industry.

Custom Power Units
Mason Dynamics has the inventory and experience to deliver on custom DC power unit requests. Our massive inventory of Monarch pumps, motors, reservoirs, and manifolds allows us to build a multitude of power unit variations. For greater customization, our hydraulic experts can fabricate reservoirs to mount in any direction, design custom manifolds, and build custom control boxes. Call us today to make the switch to a superior hydraulic supplier.

Rebuilds & Repair
We offer quality rebuilt DC power units that are tested and backed by our 1-year warranty policy. For power unit repair, please call for a repair order number and our expert technicians will diagnose your system.