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Heavy Duty Hydrostatic Motor, 3.32 cu in/rev, SAE C 4-Bolt Mounting Flange, 14T SAE C Splined Shaft, 1 Inch Code 62 Ports, PSI High Pressure Relief

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Description & Features

The Danfoss / Eaton Series 1 Heavy Duty Fixed Motor is crafted for reliable performance in hydrostatic transmission systems. Featuring a 3.32 cu in/rev displacement and a 14T SAE C splined shaft this motor ensures dynamic machine control and robust operation.

Designed to handle peak pressures of up to 6000 PSI it boasts an advanced cylinder barrel for high-speed performance and reduced leakage. The motor operates at a speed rating of 4510 RPM accommodating a fluid viscosity range of 80-180 SSU with a maximum intermittent cold start-up limit of 10 000 SSU.

Constructed with high strength cast iron housings it provides superior noise damping and structural integrity. The bi-metal bearing plate combines steel for high speed and pressure with bronze for enhanced bearing properties.

The SAE C 4-bolt mounting flange ensures secure and efficient installation while the recommended filtration meets ISO 4406 Cleanliness Level 18/13 or better. Normal system temperature maintenance is 180F with a maximum intermittent limit of 220F.

MPN: C1JM20

Supplier Part Number: 3333-059

Specifications

Charge Pressure Relief
240
Displacement
3.32
Displacement
3.32
Brand
Danfoss Power Solutions II (Char-Lynn)
Brand
Char-Lynn
Pack Size
1.00
UOM
EA
Features
Compact design|Dynamic machine control|Pro-FX ready
Mount
SAE C 4-Bolt
Mount
SAE C 4-Bolt
Ports
1 Inch Code 62
Ports
1 Inch Code 62
Shaft
14T SAE C Splined
Shaft
14T SAE C Splined
Speed Rating
4510 RPM
Speed Rating
4510 RPM
Supplier Part Number
3333-059
Product Weight
10.00 lbs
Alternate Part Numbers
Alternate Part Number 3333-059, Alternate Part Number MINO-00287X62139

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Product Questions & Answers (2)

Question by: Ray B on Jun 11, 2025, 9:20 AM
Reckon this'll swap right in for my old Eaton C1JM20 motor? Just wanna be sure 'fore I order.
Answer by: Customer Support on Jun 12, 2025, 10:29 AM
This Eaton Heavy Duty Hydrostatic Motor is marked with the same C1JM20 catalog number, so it should be a direct replacement assuming your existing motor also has a SAE C 4-bolt mounting, a 14T SAE C splined shaft, and 1 Inch Code 62 ports.
Question by: Hubert W on Oct 14, 2025, 8:54 AM
Got a machine running a hydrostatic transmission and need to know if this motor can hold up to high pressure spikes without blowing out. What's the actual pressure limit on it?
Answer by: Customer Support on Oct 15, 2025, 8:39 PM
Peak pressure ceiling on this motor is 6000 PSI, but that rating comes with an important condition. Pressure spikes at that level should stay under 1% of total operating time. Sustained operation at peak pressure will shorten the service life, so if your system regularly sees hard pressure events, keeping normal running pressure well below that ceiling is the smarter call. The cast iron housing helps absorb stress and reduces noise, but the 6000 PSI figure is a ceiling, not a target.