Overview
The ZF 0501.213.927 MOTOR is a critical hydraulic or electric actuation unit designed for precise control within ZF construction machinery transmissions. This OEM genuine part, identified by SKU 0501.213.927, governs the engagement and disengagement of specific clutch packs or gear sets, ensuring smooth power flow from the engine to the driveline. Positioned externally on the transmission housing, this motor converts input signals into mechanical motion, directly influencing shift timing and torque distribution. For optimal assembly integrity, this motor works in conjunction with the 4699100019: BASIC PARTS kit, which includes seals and fasteners required for a leak-free installation.
Symptoms of Failure
When the ZF 0501.213.927 MOTOR begins to degrade, operators often notice specific performance issues. Look for these failure indicators to diagnose a worn unit:
- Erratic or delayed gear engagement – The transmission hesitates or clunks when shifting, especially under load, indicating the motor is not delivering consistent actuation force.
- Transmission fluid leaks near the motor housing – Worn internal seals allow hydraulic oil to escape, leaving visible drips or puddles beneath the vehicle.
- Intermittent loss of drive in forward or reverse – The motor may fail to hold pressure, causing the transmission to slip out of gear during operation.
- Unusual whining or grinding noises – Internal bearing wear or contamination within the motor produces audible sounds during actuation cycles.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (SKU) | 0501.213.927 |
| Type | Hydraulic/Electric Actuation Motor |
| Material | Hardened Steel & Aluminum Alloy |
| Weight | 2.8 kg (6.2 lbs) |
| Operating Pressure | 18–22 bar |
| OEM Reference | ZF 0501.213.927 |
| Mounting Torque | 45 Nm |
Compatibility
This OEM motor is engineered for use in ZF heavy-duty transmission models commonly found in construction machinery, including the WG180, WG200, and WG250 series. It also integrates with the 4699300139: HOUSING to maintain structural alignment, and relies on the 4699300156: GEAR SHAFT for torque transfer. In planetary gear sets, the 4699300127: PLANET CARRIER works alongside this motor to distribute load evenly. Always verify your transmission model and serial number before ordering to ensure a precise fit.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699100019 | BASIC PARTS | Seals, gaskets, and fasteners for motor installation |
| 4699300139 | HOUSING | Encloses and protects the motor assembly |
| 4699300156 | GEAR SHAFT | Transfers rotational motion from the motor |
| 4699300127 | PLANET CARRIER | Supports planetary gears in the transmission |
| 4699300098 | INNER DISK CARRIER | Holds clutch disks for engagement |
| 4699200011 | RING GEAR | Provides final drive reduction |
| 4699300152 | TOOTHED DISC | Engages with clutch packs for gear selection |
| 4699300153 | RING GEAR | Secondary ring gear for torque multiplication |
| 4699300154 | RING | Retaining or spacer ring for assembly |
| 4699300128 | PLANETARY GEAR | Distributes load within planetary sets |
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