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Heavy Duty Hydrostatic Pump, 4.59 cu in/rev, SAE C 4-Bolt Mounting Flange, 14T SAE C Splined Shaft, CW Rotation, Proven reliability in demanding applications|Multiple control options|Pro-FX ready

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Description & Features

The Danfoss Power Solutions II LLC (Char-Lynn) heavy duty hydrostatic pump is engineered for reliability in demanding applications. This variable displacement pump features a 4.59 cubic inch per revolution displacement SAE C 4-bolt mounting flange and a 14T SAE C splined shaft with clockwise rotation. Optimal fluid viscosity ranges between 80-180 SSU with a low intermittent limit of 60 SSU and high intermittent limit of 10 000 SSU for cold start-up. The charge pressure is rated at 280 PSI while the charge pump displacement is 1.28 cubic inches with a maximum speed rating of 3800 RPM. With a peak pressure at 6000 PSI and main pump speed rating at 4160 RPM this pump is Pro-FX ready and offers multiple control options.

ECCN: EAR99

Supplier Part Number: 4623-524

Specifications

Charge Pressure Relief
280
Charge Pump Displ
1.28
Charge Pump Speed Rating
3800
Control
Manual
Displacement
4.59
Displacement
4.59
Brand
Danfoss (Net)
Brand
Danfoss Power Solutions
Pack Size
1.00
UOM
EA
Features
Proven reliability in demanding applications|Multiple control options|Pro-FX ready
Mount
SAE C 4-Bolt
Mount
SAE C 4-Bolt
Ports
1 Inch Code 61
Ports
1 Inch Code 61
Rotation
CW
Shaft
14T SAE C Splined
Shaft
14T SAE C Splined
Speed Rating
4160 RPM
Speed Rating
4160 RPM
Supplier Part Number
4623-524
Type
Variable Displacement
Product Weight
60.00 lbs
Alternate Part Numbers
Alternate Part Number 4623-524, Alternate Part Number C1HY17

Related Documents

Similar Products

Part Number Displacement Mount Shaft Rotation Ports Control Charge Pump Displ Charge Pressure Relief Features Charge Pump Speed Rating Speed Rating Price Action

0004623-477

4.6

SAE C 4-Bolt

14T SAE C Splined

CCW

1 Inch Code 61

Manual

1.28

280

Proven reliability in demanding applications|Multiple control options|Pro-FX ready

3800

4160 RPM

Product Questions & Answers (3)

Question by: Brett G on Jul 9, 2025, 12:39 PM
I'm looking to swap out a hydrostatic pump on my skid steer. This one's got the SAE C 4-bolt flange and splined shaft like mine, but how do I know if the 4.59 cu in/rev is gonna be right?
Answer by: Customer Support on Jul 11, 2025, 11:29 AM
Considering the 4.59 cu in/rev displacement, this pump should be suitable if it matches the specifications of your current skid steer's pump. Be sure to verify that this displacement falls within the operational range required for your machine to ensure proper performance.
Question by: Kirk R on Oct 6, 2025, 2:00 PM
Can y'all tell me if this pump is good for continuous heavy-duty work?
Answer by: Customer Support on Oct 8, 2025, 1:26 PM
Sure thing! This heavy-duty hydrostatic pump is built for reliability in demanding applications. It's got multiple control options and is Pro-FX ready, making it well-suited for continuous use in tough environments.
Question by: Hubert R on May 17, 2025, 7:06 AM
Reckon this hydrostatic pump would hold up in some rough logging work we got going on out here?
Answer by: Customer Support on May 18, 2025, 9:56 PM
The pump's built for proven reliability in demanding applications, so it should handle tough jobs like logging without issues, especially with its heavy-duty closed circuit design and servo control.