Aftermarket Danfoss Parts

Shaft seal leaking? Pressure dropping under load? Metal in the case drain? When a Danfoss pump or Sauer-Danfoss motor starts to fail, dealer lead times can run from several weeks to several months. FridayParts is a trusted aftermarket source of Danfoss-compatible parts — replacement parts, spare parts, and repair components for Danfoss, Sauer-Danfoss, and legacy Sauer Sundstrand hydraulics. Browse the catalog below, or send us a part number for a cross-reference quote.

What Does This Catalog Cover?

• MMF series motors — MMF44 hydraulic motor parts, replacement pistons, rotor groups, and piston kits
• Series 45 / H1 / D1P pumps — gear sets, seal kits, and full rebuild kits
• OMP / OMR / OMT / OML orbital motors — shaft seals, housings, and service parts (see all hydraulic motors)
• Danfoss gear pumps & power steering pumps, PVG32 / PVG120 valves, and Sauer Sundstrand M91 legacy components
• Gaskets & seal kits — including Danfoss XGS55A gaskets and obsolete platforms

Why Choose FridayParts for Danfoss Hydraulics Repair?

Danfoss Power Solutions (formerly Sauer-Danfoss, originally Sundstrand) builds hydraulic motors and pumps used across heavy equipment — but the dealer channel isn't built for fast turnaround. As an aftermarket supplier within our hydraulic parts catalog, FridayParts helps fleet operators avoid week-long downtime.

• Cross-reference desk — match any Danfoss, Sauer-Danfoss, or Sauer Sundstrand part number, including superseded and obsolete codes
• Legacy coverage — Sauer Sundstrand M91 parts, early MMF series, and discontinued PVG variants stocked when dealers no longer carry them
• Rebuild over replace — most failures are seals, pistons, or gear sets; a Danfoss hydraulic motor rebuild kit often costs a fraction of a full unit
• 90-day return policy and 1-year warranty.

Popular Danfoss Models

Hydraulic Equipment

Converters

Refrigeration Equipment

Temperature Control Equipment

Rebuild Kit, Repair, or Full Replacement?

A common cost-saving question from our parts desk on Danfoss hydraulic motor repair:

• Leak from the shaft or end cap — shaft seal or Danfoss hydraulic motor seal kit
• Pressure drop under load — piston or rotor rebuild kit
• Metal in the case drain filter — full motor or hydraulic pump replacement
• Erratic spool response on PVG valves — spool kit or actuator
• Steering wander on M91 or OSPC units — steering cartridge rebuild kit

Not sure which one applies? Send a photo of the failure and the data plate. If you're sourcing other hydraulic brands, see our hydraulic parts catalog.

Get a Cross-Reference Quote on Danfoss Spare Parts

Stuck on a part number? Send us the stamped code or a clear photo of the data plate. As one of the experienced aftermarket Danfoss parts suppliers, we work through Danfoss, Sauer-Danfoss, and Sauer Sundstrand catalogs — including obsolete and superseded numbers — and reply with availability and pricing. Contact our parts team via live chat or email.