Sauer Sundstrand Hydraulic Pumps, Motors & Cross-Reference

Sauer Sundstrand traces to the Sundstrand Machine Tool Company (1926), with hydraulics operations developing through the 1930s and a 1986 joint venture that formed Sauer-Danfoss. The brand built axial piston pumps and motors in variable and fixed displacement, hydrostatic transmissions, orbital motors, steering components, proportional valves, gear pumps, and electronic controls for off-highway and industrial machinery. Danfoss acquired the business in 2000, and after Eaton Hydraulics was integrated into Danfoss Power Solutions in 2021, the Sauer Sundstrand lines became part of the unified Danfoss catalog. Northern Hydraulics supplies and cross-references Sauer Sundstrand hydraulic components as an independent distributor and repair shop; we are not an authorized distributor and provide replacement and equivalent parts.

Cross-Referencing Sauer Sundstrand Parts

Most Sauer Sundstrand requests we field are for legacy pumps, motors, and transmissions where the original part number now maps to a Danfoss Power Solutions equivalent or an aftermarket build. We identify the matching component by series, displacement, and rotating-group geometry, then point you to a current replacement or a remanufactured equivalent. Series 20, Series 45, and Series 90 have documented cross-references for rotating groups, cylinders, valve plates, and bearing components across the Sauer and Danfoss heritage range, which makes obsolete-part matching practical even when the original catalog number is retired.

Send us a Sauer Sundstrand model code, series number, or a number stamped on a pump or motor, and we will return the equivalent and the spec basis for the match. Request a Sauer Sundstrand cross-reference quote to confirm an obsolete or hard-to-source part.

Sauer Sundstrand Product Lines & Series

Sauer Sundstrand hydraulics span several pump, motor, and transmission families. The series and product lines we cross-reference include:

• Axial piston pumps and motors, variable and fixed displacement
• Hydrostatic transmissions for off-highway drivetrains
• Orbital motors and steering components
• Proportional valves, gear pumps, and electronic controls
• Series 15, Series 18, and Series 20-27
• Series 30, Series 40, and Series 44 (M46)
• Series 45, Series 51V, and Series 90