You can count on us for all of your Denison hydraulic pump repair needs.


We provide fast, reliable hydraulic pump repair service on all Denison models. We are committed to using genuine OEM parts, so you know that you aren’t getting gray market or counterfeit parts. Once you work with us, we think that you will keep coming back to us for all of your Denison hydraulic pump repair needs.

Denison Pumps We Can Repair

If you don’t see your model number listed below, don’t hesitate to call or contact us. We service just about every model of pump that is available from Parker Hannifin Denison and other manufacturers.

Gold Cup Series Pumps

Denison Gold Cup Series pumps are piston pumps for open and closed closed circuits. The closed hydraulic circuit variable pumps are combined with a fixed motor for a constant torque output at a fixed maximum pressure over the full speed range. Speed and direction are controlled with a variable displacement over-center pump. Power from overhauling loads is regenerated back into the pump prime mover. Motor speed is limited to the maximum speed permitted by full pump displacement. System is capable of full power only at maximum pump displacement. Theopen circuit pumps include a cross-center variable displacement pump which is normally limited to one side of center. The auxiliary pump supplies only servo pressure to control the main pump displacement and inlet porting is enlarged to improve the pump’s inlet characteristics. As the open loop pump operates on one side of center only, not all controls are available.

P6 Series P7 Series P8 Series P11 Series P14 Series P16 Series
P24 Series P30 Series

Vane Pumps

Denison produce a full range of vane pumps and motors that operate at pressures in excess of 4,500 pounds per square inch (“psi”) and vary in size from 0.35 cubic inches to 16 cubic inches, and in displacement from 1 to 250 gallons per minute (“gpm”).

DEC Series DT6D Series KB Series TD Series TDC Series
TDCB Series TE Series TEC Series TED Series TG Series TMB Series
TMC Series TME Series T1C Series T1D Series T2C Series T2D Series
T2D-PF05 T2DC Series T2DCB Series T2DX Series T3B Series T3C Series
T3CB Series T3CC Series T3D Series T3DC Series T3B Series T3CB Series
T3EC Series T3ED Series T5C Series T5CC Series T5D Series T5DC Series
T5E Series T3ED Series T5EC Series T5ED Series T5QD Series T5QDC Series
T5QED Series T6C Series T6CC Series T6D Series T6DC Series T6E Series
T6EC Series T6ED Series

Piston Pumps

Denison manufactures a full range of piston pumps at their Marysville, Ohio facility. These specialized pumps operate at pressures as high as 7,250 pounds per square inch (“psi”) and vary in size from 0.9 cubic inches to 38.9 cubic inches, and in displacement from 11 to 303 gallons per minute (“gpm”).

PV Series PV6 Series PV10 Series PV15 Series PV20 Series PV29 Series
500 Series 600 Series 700 Series 800 Series 900 Series P2 Series
P3 Series 6 cu. in. Series 7 cu. in. Series 11 cu. in. Series 14 cu. in. Series 46 Series
60 Series 61 Series

Field Service & Consultation for Your Denison Pump

When you are on the job and under a deadline and equipment fails, you need fast, reliable repair. We can send in our field technicians to get your Denison pump back up and running as soon as possible. Our reliable, experienced team can perform diagnostic services and minor repairs for Industrial Equipment, Mobile Construction Equipment and Agricultural Equipment.

Fast, Accurate Denison Pump Repair

If repairs cannot be made on-site to your Denison pump, you can ship it to our facility. At Wooster Hydrostatics, We know how important it is to get your hydraulic systems back up and running. So you can trust us to get your pump repaired and back to you as fast as possible, and working properly.

About Denison

Denison Hydraulics is now a division of Parker Hannifin HPD. Denison uses self-lubricating pumps, but they still require minor preventative maintenance. This maintenance can include frequently changing the filters and tightening fittings and screws.

Don’t see your Denison hydraulic pump model number? Not a problem. Call 800-800-6971 or send us an email. Chances are we’ve worked on it before and have parts for it, even if it’s not listed on our website.