About Us

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Unlocking Our Customers' Potential

Parker's Hydraulic Pump and Motor Divsion (HPM) has been designing pumps and motors for over 50 years to drive industry. We are here for our customers, creating products to tackle the world's most difficult engineering challenges and move them into the future, including Electrification.

Parker is providing the building blocks for vehicle electrification and developing turnkey technologys that cut time to market while reducing supply chain complexity.

A global technology leader, the Parker Hydraulic Pump and Motor Division (HPM) brings nearly two centuries of combined experience. Our division is the result of the Parker piston pump business’s acquisition of Denison Hydraulics and merger with the Parker Pump and Motor Division (PMD), which manufactures hydraulic pumps, transmissions and gear pumps and motor.

Since before WWII, Denison products have been excelling in military test stand and shipboard hydraulic applications. This acquisition allowed us to enhance and expand the design, manufacturing and application of open- and closed-circuit piston products into new markets. With the addition of Oildyne, we have extended our offering to include the quality compact hydraulic products and systems the division has been pioneering since 1955. Like the miniature piston pumps Oildyne manufactures, it’s been a smart fit.

With the Summer 2021 addition of electric motors and gearboxes from Parker’s EMD, HPM is focused on the future of both electric and hydraulics solutions. By combining electric motors and hydraulic pumps, highly integrated and versatile electro-hydraulic functions can be created for a wide variety of applications including trucks, buses, and construction equipment vehicles.

In Summer 2025, Hydraulic Pump and Motor Division (HPM) was created combining the former Hydraulic Pump and Power Systems (HPS) and Pump and Motor (PMD) Divisions.

HPM Locations

The Hydraulic Pump and Motor Division operates four manufacturing locations in the United States and one in Mexico. We partner with our overseas manufacturing facilities, Pump & Motor Division Europe, which has four locations across Europe. Together, our teams of application, engineering and manufacturing professionals collaborate on industry leading hydraulic pumps, gear pumps, motors, power units, transmissions, and compact systems designs.

HPM Headquarters and Parker North American Mobile Electrification Center (PMEC)

The Hydraulic Pump and Motor Division is headquartered in Marysville, Ohio, just outside of Columbus, Ohio. Gold Cup Pumps and Motors, known worldwide for their unparalleled, rugged design are manufactured here.

The Marysville facility has been in operation since 1962, originally part of Denison Hydraulics and acquired by Parker in 2004. Safety for our team and visitors is top priority and our record is something we take great pride in. With world class manufacturing and continuous improvement, the Marysville facility is positioned to exceed our customers' expectations as a global supplier. In addition to manufacturing, the Marysville facility houses industry leading closed center pump research, development, and engineering, which is responsible for numerous break throughs and patents.

Marysville has one of the largest hydraulic laboratories in North America, including multiple test stands with over 3000 HP of installed power and an extensive Metallurgical lab. We are continuously working to improve our products, to deliver the best quality hydraulic pumps for your applications.

Greeneville, Tennessee

Kings Mountain, North Carolina

Otsego, Michigan

Parker Hydraulic Pump and Motor in Greeneville, Tennessee, formerly a TRW facility, became part of the Parker family in 1993.

Its product line focuses on propulison and drive solutions including Low Speed, High Torque Motors with Gerotor technology, a variety of transmissions, and axial piston pumps, including single and tandem.

The Greeneville facility includes machining, heat treating, assembly and testing with on-site engineering, metrology, and metallurgy labs.

Parker Hydraulic Pump and Motor in Kings, Mountain, North Carolina machines and assembles gear product solutions, including gear pumps, gear motors and valve integrations used in work trucks, construction, and agriculture.

Parker’s Hydraulic Pump and Power Systems’ Otsego, Michigan location (a few miles north of Kalamazoo) focuses on the manufacturing of Parker’s superior open circuit variable piston pumps including P1/PD, P2/P3, PAVC, PVP, P1M, and Industrial Power Units.

The Otsego facility has been operating since 1968 providing years of experience in machining, assembling, and testing. Safety for our team and visitors is top priority and our record shows this without doubt. With world class manufacturing and continuous improvement, the Otsego facility is positioned well and is constantly improving and out pacing the competition as a global supplier.

In addition to manufacturing, the Otsego facility houses industry leading open center pump research, development, and engineering which is responsible for numerous break throughs and patents. Otsego also has a fully capable pump lab with multiple test stands up to 500 HP.