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Danfoss / Eaton-39 Fixed Motor

Description & Features

Built for demanding mobile and industrial applications, the Danfoss / Eaton-39 Fixed Motor is a cast iron, fixed-displacement axial-piston unit rated for a maximum flow of 67.3 gallons per minute and a torque output of 397 Newton metres. Its compact design suits installations where space is constrained without sacrificing output capacity.

This motor is well-suited to a wide range of equipment including transit mixers, road rollers, motor graders, dozers, cranes, sweepers, lift trucks, tractors, windrowers, planters, and marine and oil and gas machinery. Pro-FX ready compatibility supports dynamic machine control for applications requiring responsive, precise hydraulic actuation. The cast iron construction provides durability in high-cycle and heavy-load environments typical of the equipment categories it serves.

SKU: 3933-101

Supplier Part Number (MPN): 3933-101

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 3933-101	Torque Rating 397 newton metre	Torque Rating 397 newton metre	Product Weight 37.60 lbs

Product Questions & Answers (2)

Question by: Dale R on Feb 1, 2026, 8:30 AM

Got a transit mixer that's been eating motors alive. Does this Eaton-39 hold up to that kind of constant heavy use, or is it more of a light-duty piece?

Answer by: Customer Support on Feb 3, 2026, 6:13 AM

Cast iron construction on this motor was chosen specifically because applications like transit mixers put serious cumulative stress on components. The housing handles high-cycle, heavy-load conditions without the fatigue you'd see in lighter alloy builds. It's listed as a rated application for this motor, so it's not being stretched outside its intended use case. At 397 newton metres of torque output and a 67.3 GPM flow rate, it's got the output capacity to keep up with that kind of demanding drive cycle without being undersized for the job.

Question by: Howard G on Jan 13, 2026, 7:12 AM

Reckon this motor would hold up on a transit mixer running near constant?

Answer by: Customer Support on Jan 14, 2026, 10:21 AM

Built for demanding mobile and industrial applications, this Danfoss / Eaton fixed motor uses cast iron construction to provide durability in high-cycle and heavy-load environments.