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Heavy Duty Hydrostatic Motor, 3.89 cu in/rev, SAE C 4-Bolt Mounting Flange, 14T SAE C Splined Shaft, 1 Inch Code 61 Ports, 5000.00 PSI High Pressure Relief

Description & Features

This Eaton Char-Lynn heavy-duty hydrostatic motor is designed for demanding applications requiring dynamic machine control. The 3.89 cu in/rev displacement provides consistent power, and the SAE C 4-bolt mounting flange ensures secure installation.

Features include a 14T SAE C splined shaft and 1-inch Code 61 ports for reliable hydraulic connections. With a high-pressure relief set at 5000 PSI and a peak pressure rating of 6000 PSI, this Heavy Duty Hydrostatic Motor offers robust performance in challenging environments.

SKU: 0003933-003

Supplier Part Number (MPN): 3933-003

Alternate Part Numbers: C1EL18

Specifications

Charge Pressure Relief 160	Displacement 3.89	Displacement 3.89	Brand Danfoss (Net)	Brand Danfoss Power Solutions	Pack Size 1.00	UOM EA	Features Compact design\|Dynamic machine control\|Pro-FX ready	High Pressure Reliefs 5000	Mount SAE C 4-Bolt	Mount SAE C 4-Bolt	Ports 1 Inch Code 61	Ports 1 Inch Code 61	Shaft 14T SAE C Splined	Shaft 14T SAE C Splined	Speed Rating 4160 RPM	Speed Rating 4160 RPM	Supplier Part Number 3933-003	Product Weight 85.00 lbs	Alternate Part Numbers Alternate Part Number 3933-003, Alternate Part Number C1EL18

Similar Products

Part Number	Displacement	Mount	Shaft	Ports	High Pressure Reliefs	Charge Pressure Relief	Features	Speed Rating
0003333-015	3.32	SAE C 4-Bolt	14T SAE C Splined	1 Inch Code 61	3000	160	Compact design\|Dynamic machine control\|Pro-FX ready	4510 RPM
0003933-003	3.89	SAE C 4-Bolt	14T SAE C Splined	1 Inch Code 61	5000	160	Compact design\|Dynamic machine control\|Pro-FX ready	4160 RPM
0005433-153	5.44	SAE C 4-Bolt	14T SAE C Splined	1 Inch Code 62	5500	220	Compact design\|Dynamic machine control\|Pro-FX ready	3720 RPM
0004633-091	4.6	SAE C 4-Bolt	14T SAE C Splined	1 Inch Code 62		240	Compact design\|Dynamic machine control\|Pro-FX ready	4160 RPM
0003333-059	3.32	SAE C 4-Bolt	14T SAE C Splined	1 Inch Code 62		240	Compact design\|Dynamic machine control\|Pro-FX ready	4510 RPM
0005433-111	5.44	SAE C 4-Bolt	14T SAE C Splined	1 Inch Code 61	5000	220	Compact design\|Dynamic machine control\|Pro-FX ready	3720 RPM

Product Questions & Answers (4)

Question by: Dwight M on Jun 11, 2025, 1:34 PM

what kinda temps can this motor run at all day without hurting anything. we got fluid viscosity sitting around 90 ssu normally.

Answer by: Customer Support on Jun 13, 2025, 6:01 AM

Normal continuous operation caps at 180 degrees Fahrenheit for this hydrostatic motor. Hitting up to 220 degrees is fine for maximum intermittent limits. Your 90 SSU fluid viscosity falls right into the optimum operating range of 80 to 180 SSU.

Question by: Wes B on Apr 3, 2025, 7:35 AM

got a machine that takes an SAE C 4-bolt flange, will this motor bolt right up and what kind of shaft is on it

Answer by: Customer Support on Apr 5, 2025, 6:44 AM

It uses an SAE C 4-bolt mounting flange and a 14-tooth SAE C splined shaft. Porting is 1 inch Code 61, so those are the key interface points to match up on your machine.

Question by: Kirk J on Dec 28, 2025, 1:01 PM

got a machine running a Series 1 pump already, will this motor hold up running continuous at high pressure, or is there a ceiling I need to stay under?

Answer by: Customer Support on Dec 30, 2025, 6:49 AM

For continuous operation, keep system pressure at or below 5000 PSI, which is where the high pressure relief is set on this unit. The motor itself carries a 6000 PSI pressure rating, but that upper range is meant for brief spikes only, peak pressure should stay under one percent of total operating time. Normal continuous temperature limit is 180 degrees F, with 220 degrees F allowed only on a short-term intermittent basis. Stay within those bands and the 10,000-hour B10 bearing design life holds up well under sustained load.

Question by: Shawn R on Sep 25, 2025, 6:16 AM

got a motor with SAE C 4-bolt mount and a 14T SAE C spline, is this the right one to swap in?

Answer by: Customer Support on Sep 27, 2025, 6:43 AM

The hard match points on this unit are SAE C 4-bolt mounting, a 14T SAE C splined shaft, and 1 inch Code 61 ports. It is a fixed-displacement heavy duty hydrostatic motor at 3.89 cu in per rev, with 5000 PSI high pressure reliefs and a 4160 RPM speed rating.