Overview
The ZF 4699.170.093 MOTOR is a genuine OEM hydraulic motor designed for integration within ZF construction machinery transmissions. This component converts hydraulic pressure into mechanical rotational force, directly driving the transmission’s output shaft to propel heavy equipment. Positioned within the transmission housing assembly, the SKU 4699.170.093 serves as a critical power transfer element, ensuring smooth torque delivery under extreme load conditions. It is frequently replaced alongside the 4699101046 HOUSING and the 4699301109 HOUSING during major transmission overhauls.
Symptoms of Failure
- Intermittent drive loss or gear slipping — When the motor’s internal seals degrade, hydraulic pressure drops, causing the transmission to slip under load. This often manifests as “ZF transmission losing power uphill” or “motor stalling during excavation.”
- External hydraulic oil leaks — Worn shaft seals or housing cracks around the motor lead to visible fluid seepage. Search queries like “ZF 4699.170.093 oil leak repair” are common when this occurs.
- Excessive noise during operation — Grinding or whining sounds from the transmission indicate bearing wear or internal cavitation within the motor, often accompanied by reduced responsiveness.
- Overheating transmission fluid — A failing motor creates internal friction, raising operating temperatures. This symptom frequently appears alongside a damaged 4699301017 BEARING COVER or a compromised 4699301085 COVER.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4699.170.093 |
| Type | Hydraulic Drive Motor |
| Material | High-strength alloy steel with hardened gears |
| Weight | 12.4 kg (27.3 lbs) |
| Dimensions (L x W x H) | 280 mm x 160 mm x 140 mm |
| OEM Reference | ZF Friedrichshafen AG |
| Seal Type | Nitrile rubber (NBR) with PTFE backup rings |
| Max Operating Pressure | 250 bar (3625 psi) |
| Max Speed | 3000 RPM |
Compatibility
This genuine ZF motor is engineered for use in the following transmission models commonly found in construction machinery such as wheel loaders, forklifts, and telehandlers:
- ZF WG180 series (WG180, WG180/II)
- ZF WG200 series (WG200, WG200/II)
- ZF WG310 series (WG310, WG310/II)
- ZF Ergopower series (e.g., 4WG-180, 4WG-200)
Always verify your transmission serial number before ordering. The motor interfaces directly with the 4699101046 HOUSING and the 4699301109 HOUSING to ensure proper alignment and sealing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101046 | HOUSING | Encloses and supports the motor assembly |
| 4699301109 | HOUSING | Secondary housing for gear alignment |
| 4699301017 | BEARING COVER | Protects bearings from debris and retains lubrication |
| 4699301085 | COVER | Seals the transmission case opening |
| 4699301014 | THREAD PROTECTIVE SHIELD | Prevents thread damage during installation |
| 0634303141 | O-RING | Hydraulic seal between components |
| 0734307407 | PROTECTION CAP | Covers exposed ports to prevent contamination |
| 0634309600 | SHAFT SEAL | Prevents oil leakage along the rotating shaft |
| 0637885612 | BREATHER | Equalizes internal pressure and vents moisture |
| 0636102023 | CAP SCREW | Fastens housings and covers securely |
