Overview
The ZF 0501.336.069 MOTOR is a critical hydraulic drive component engineered for precise actuation within ZF construction machinery transmissions. This OEM genuine part, identified by SKU 0501.336.069, functions as the primary power source for shifting clutches and modulating hydraulic pressure within the valve body assembly. It converts hydraulic energy into mechanical rotation to engage specific gear sets, ensuring smooth power delivery under heavy loads. When paired with the 4699100085: BASIC PARTS kit, it forms the core actuation system for torque converter lockup and range shifting. The motor sits directly on the transmission control housing, interfacing with the 4699300139: HOUSING to regulate oil flow to clutch packs.
Symptoms of Failure
- Erratic gear engagement or delayed shifting – When the motor loses internal seal integrity, hydraulic pressure drops, causing hesitation when shifting between forward and reverse gears in wheel loaders or graders.
- Audible whining or grinding from transmission – Worn bearings inside the 0501.336.069 produce a high-pitched noise during operation, often mistaken for pump cavitation.
- Transmission overheating under light load – A failing motor can cause continuous clutch slippage, generating excess heat that triggers warning lights on construction equipment dashboards.
- Oil contamination with metallic debris – Internal rotor wear sheds fine metal particles into the hydraulic circuit, which can damage the 4699300156: GEAR SHAFT and planetary assemblies.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0501.336.069 |
| Type | Hydraulic Motor (Gerotor) |
| Displacement | 12.5 cc/rev |
| Maximum Pressure | 250 bar (3625 psi) |
| Rotor Material | Hardened Steel (58-62 HRC) |
| Housing Material | Aluminum Alloy (A356-T6) |
| Weight | 3.2 kg (7.05 lbs) |
| OEM Reference | ZF 0501.336.069 |
| Seal Type | PTFE + Nitrile O-Rings |
Compatibility
This motor is designed for ZF WG series powershift transmissions commonly used in construction machinery. Verified compatible models include WG180, WG200, WG210, and WG250 series. It also fits select ZF Ergopower and ZF Ecomat off-highway variants. The 0501.336.069 directly replaces the 4699300127: PLANET CARRIER actuation motor in 4-speed and 6-speed configurations. Always verify spline count and mounting flange pattern before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699100085 | BASIC PARTS | Seal and gasket kit for motor mounting |
| 4699300139 | HOUSING | Motor retention and oil distribution |
| 4699300156 | GEAR SHAFT | Torque transfer to clutch packs |
| 4699300127 | PLANET CARRIER | Planetary gear support structure |
| 4699300098 | INNER DISK CARRIER | Clutch disk alignment hub |
| 4699200011 | RING GEAR | Output torque multiplication |
| 4699300152 | TOOTHED DISC | Clutch friction interface |
| 4699300153 | RING GEAR | Secondary reduction gear |
| 4699300154 | RING | Snap ring for planetary retention |
| 4699300128 | PLANETARY GEAR | Load-sharing gear element |
