Product Overview
The PARKER F12-040-MS-SV-T-000-0000-PO (part number 3786812) is a high-performance axial piston motor from Parker Hannifin’s renowned F12 series, engineered for demanding medium-duty and heavy-duty hydraulic drive applications. Utilizing a bent-axis axial piston design, this motor converts hydraulic pressure into reliable rotary mechanical power with exceptional efficiency across a wide speed and torque range. The F12-040 displacement size delivers 40 cm³/rev, making it ideally suited for both open-loop and closed-loop hydraulic systems. With its robust construction, high permissible speeds, and superior starting torque characteristics, this motor serves as a critical drive component in mobile and industrial machinery worldwide.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Axial Piston Motor (Bent-Axis Design) |
| Model Designation | F12-040-MS-SV-T-000-0000-PO / 3786812 |
| Displacement | 40 cm³/rev |
| Operating Pressure | Up to 420 bar (peak) / 350 bar (continuous) |
| Maximum Speed | Up to 6,000 rpm (depending on circuit pressure) |
| Mounting & Connection | Standard SAE / ISO flange, splined shaft (per model code) |
| Control Type | MS — Manual / Standard Control Configuration |
| Seal Type | SV — Viton / High-Temperature Seal Package |
Engineering Features & Advantages
- High Power Density: The bent-axis axial piston design delivers exceptional torque output relative to its compact frame size, enabling efficient power transmission in space-constrained installations.
- Superior Starting Torque: Achieves high breakaway torque even at low speeds, making it ideal for applications requiring reliable startup under full load.
- Wide Speed Range: Operates smoothly from very low creep speeds to high rotational speeds, providing excellent controllability across the entire operating envelope.
- Robust Bearing System: Heavy-duty tapered roller bearings support high radial and axial loads, extending service life in demanding duty cycles.
- Industrial Reliability: Built for continuous operation under severe industrial conditions with proven Parker Hannifin quality standards.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM specifications, ensuring drop-in replacement without modification.
Typical Industrial Applications
This Parker F12-040 axial piston motor is widely deployed in heavy industrial and mobile hydraulic drive systems, including: plastic injection molding machines requiring precise screw drive control; metallurgical presses and rolling mill auxiliary drives; construction and marine hydraulics such as winch drives, slewing mechanisms, and propulsion systems; and CNC machine tools where accurate rotary indexing and feed drives are essential. Its versatility also extends
PRODUCT IMAGES


PARKER F12-040-MS-SV-T-000-0000-PO / 3786812 Axial Piston Motor
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine PARKER F12-040-MS-SV-T-000-0000-PO / 3786812 Hydraulic Motor. This Germany-made hydraulic component features a robust axial piston design, delivering reliable, high-torque fluid power for heavy-duty industrial systems.