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Danfoss / Eaton-39 Fixed Motor

Description & Features

Built for demanding mobile and industrial hydraulic applications, the Danfoss / Eaton-39 Fixed Motor is a cast iron, fixed-displacement axial-piston motor rated for up to 397 Nm of torque and a flow rate of 67.3 gallons per minute. Its heavy-duty construction suits high-cycle, high-load environments where consistent output and durability are required.

Designed with a compact form factor, this motor supports dynamic machine control and is Pro-FX ready, making it compatible with advanced electronic control integration. It is well-suited for a broad range of equipment types, including transit mixers, road rollers, motor graders, dozers, cranes, sweepers, lift trucks, tractors, windrowers, planters, marine vessels, and oil and gas machinery. The Danfoss Power Solutions heritage behind this unit reflects a lineage in high-performance hydraulic drive systems for both mobile and stationary applications.

SKU: 3933-105

Supplier Part Number (MPN): 3933-105

Specifications

Application Transit Mixer, Road Roller, Motor Grader, Dozer, Crane, Sweeper, Lift Truck, Tractor, Windrower, Planter, Oil & Gas, Marine	Brand Danfoss – Hydraulics	Brand Danfoss Power Solutions	Pack Size 1.00	UOM EA	Features Compact design\|Dynamic machine control\|Pro-FX ready	Flow Rate1 67.3 gallons per minute	ICC HS HP Fixed Axial-Piston Motors	Language English	Net Pack Quantity Units EA	Product Material Cast Iron	Product Width 6	Special Features None	Sub Brand None	Supplier Part Number 3933-105	Torque Rating 397 newton metre	Torque Rating 397 newton metre	Product Weight 37.60 lbs

Product Questions & Answers (2)

Question by: Tommy B on Jan 8, 2026, 7:34 AM

What kind of machinery does this Eaton-39 motor work with?

Answer by: Customer Support on Jan 9, 2026, 8:23 AM

This motor is used in a pretty broad range of equipment. Think transit mixers, road rollers, motor graders, dozers, cranes, sweepers, lift trucks, tractors, windrowers, planters, and even marine vessels and oil and gas machinery.

Question by: Howard S on Dec 19, 2025, 12:21 PM

Got a transit mixer that needs a new drive motor, does the torque on this unit hold up for that kind of work?

Answer by: Customer Support on Dec 20, 2025, 9:57 PM

At 397 Nm, this motor has enough torque output to handle the continuous rotational load a transit mixer puts on a drive system. Cast iron construction keeps it solid under the high-cycle demands that come with that application. It's listed as a supported use case for this motor, so you're not pushing it outside its intended range.