4700395385 Hydraulic Pump | Danfoss 90R075 90R055 | Dynapac CA250D CA301D Roller Parts
| Model Number | 4700395385 |
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Product Description
4700395385 Hydraulic Pump/Motor for Dynapac CA250D & CA301D Rollers
Product Overview: This high-performance hydraulic power assembly is specifically engineered for Dynapac rollers, corresponding to OEM part number 4700395385. Built on the industry-leading Sauer-Danfoss 90 Series platform, it incorporates the 90R075 and 90R055 core pump and motor units. As the heart of the roller’s drive system, it ensures smooth and powerful traction during heavy-duty compaction tasks. This part is a perfect match for mainstream single-drum rollers like the CA250D and CA301D, making it the ideal choice for overhauls and maintenance.
Key Technical Advantages:
Precise OEM Fitment: Manufactured strictly to 4700395385 specifications, ensuring a “plug-and-play” installation on Dynapac CA250D / CA301D without modification.
Proven 90 Series Reliability: Features the Danfoss 90-series swashplate design, renowned for high efficiency, low noise, and exceptional longevity under extreme conditions.
Superior Power Density: The 90R075 and 90R055 displacements provide the perfect torque ratio for gradeability and smooth startup on steep slopes.
High Volumetric Efficiency: Precision-matched pistons and cylinders minimize internal leakage, maintaining consistent pressure even in high-temperature environments.
Rugged Engineering: Reinforced housing optimized for high-vibration and dusty road construction sites, significantly reducing downtime.
Target Applications: Dynapac roller travel drives, drum drive systems, and hydrostatic transmission circuits for heavy compaction machinery.
Detailed Models & Parameters:
Core Series: Sauer-Danfoss (Sundstrand) 90 Series.
OEM Part Number: 4700395385.
Machine Compatibility: Dynapac CA250D, CA301D, CA251D, CA302D.
Model Keywords: 90R075 (75cc Pump), 90R055 (55cc Pump/Motor).
Pressure Specs: Nominal Pressure up to 420 Bar (6000 PSI), Peak Pressure up to 480 Bar.




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