FluiDyne Fluid Power Pumps, Motors & Valves

FluiDyne Fluid Power, founded in 1976 and headquartered in Fraser, Michigan, is an ISO 9001:2015 certified manufacturer of new and remanufactured hydraulic pumps, motors, directional control valves, pressure and flow control valves, and filters. Previously operating as Western FluiDyne before rebranding, the company remains active and builds form-fit-and-function replacement components for automotive, agriculture, construction, forestry, marine, and industrial equipment. Northern Hydraulics supplies and cross-references FluiDyne products as aftermarket and replacement components for OEM and repair applications, drawing on a catalog of roughly 5,700 FluiDyne SKUs across pumps, motors, and valves.

FluiDyne Fluid Power Product Lines & Series

FluiDyne’s catalog spans several pump, motor, and valve families. Knowing the series and displacement helps match the right replacement:

• Piston pumps — the A4V series in 40, 71, 125, 180, and 250 cm³/rev displacements plus the A4VSO/A4V variable designs, and the PVQ series in 10, 13, 20, 32, 40, and 45 models alongside the PVH, PVB, and PVE families. Browse the full FluiDyne hydraulic pumps range.
• Vane pumps — the largest part of FluiDyne’s pump catalog, split into single-stage vane pumps and double-stage vane pumps, and built as Vickers replacement pumps for V10, V20, V2010, and V2020 applications. See all FluiDyne vane pumps.
• Low-speed high-torque (LSHT) motors — orbital and gerotor and geroler torque motors across the J, H, S, 211, 500, 2000, 4000, 6000, and 10,000 series (0.50 to 49 in³/rev), plus FM-series geroler motors — FM1, FM3, FM4, and FM50/FM51 — in 80 to 500 cc displacements. Browse the full FluiDyne hydraulic motors range.
• Pumps with integral valves — combined units that pair a pump with onboard pressure or flow control; see the pumps with integral valves selection.
• Control valves — pressure control series DR, DRG, FR, FRG, DFR, and LR2 (relief, remote, solenoid, and manual), directional control valves including the WFDG4S models on the D05/NG10 design, D03–D08 (NG6–NG25) mountings, flow control valves, and modular stak valves.

Cross-Referencing FluiDyne Fluid Power Parts

FluiDyne builds its pumps and motors to be form, fit, and function interchangeable with the major OEM lines, which makes it a direct route for replacing obsolete or hard-to-source units. The LSHT and gerotor/geroler motors cross to Parker, Danfoss/Sauer, Eaton/Char-Lynn, White, Ross, and TRW motors. The PVH, PVB, PVQ, and PVE piston pumps interchange with Vickers/Eaton piston pumps, while the vane-pump line is built as a direct Vickers replacement on V10, V20, V2010, and V2020 patterns. The directional valves are compatible with Vickers, Rexroth, Parker, and NFPA-style valves on the standard D03–D08 (NG6–NG25) mounting patterns. FluiDyne motors and pumps carry a standard 18-month warranty on both new and remanufactured units. If you have an OEM part number, a worn unit, or an obsolete component you can no longer source, we can match it to the equivalent FluiDyne pump, motor, or valve by series and displacement. Request a FluiDyne cross-reference quote and include the failed part number or nameplate data.