Overview
The ZF 4644.103.069 OUTPUT for WG200 is a critical driveline component engineered to transfer rotational force from the transmission’s planetary gear set to the output shaft. Situated at the rear of the WG 200 series housing, this OEM genuine part ensures precise torque delivery and maintains axial alignment under heavy loads. The SKU 4644.103.069 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn or damaged outputs in industrial and commercial vehicle applications. When paired with a robust TRANSMISSION HOUSING, this output component guarantees reliable power transmission in demanding environments.
Symptoms of Failure
When the ZF 4644.103.069 OUTPUT begins to degrade, operators often notice specific performance issues. Look for these failure indicators to target long-tail search queries like “WG200 output shaft wear symptoms”:
- Oil seepage at the rear seal interface – Worn output surfaces allow transmission fluid to escape, leaving visible drips under the vehicle.
- Gear slipping under load – A damaged output can cause intermittent disengagement, especially during uphill or high-torque maneuvers.
- Abnormal driveline vibration – Misalignment from a worn output creates rhythmic shaking that intensifies with speed.
- Metallic grinding noises – Advanced wear produces audible contact between the output and surrounding components, such as the TRANSMISSION HOUSING.
Technical Specifications
| Part Number | 4644.103.069 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 2.8 kg (6.2 lbs) |
| Overall Length | 185 mm |
| Spline Diameter | 42 mm (internal) |
| OEM Reference | ZF 4644.103.069 |
| Seal Surface Hardness | 58-62 HRC |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This output is engineered for the ZF WG 200 series, including models WG180, WG200, and WG210. It also fits select WG 150 variants with matching output flange dimensions. For proper sealing, always install a new O-RING and verify the SCREW PLUG torque specifications during reassembly. Cross-reference your transmission’s serial number to confirm compatibility before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101232 | TRANSMISSION HOUSING | Encloses and supports gear train |
| 4644301282 | TRANSMISSION HOUSING | Alternate housing variant for WG200 |
| 4475280043 | SCREW PLUG | Seals fluid passages |
| 0634306198 | O-RING | Prevents oil leaks at joints |
| 0730365067 | TYPE PLATE | Identification label for transmission |
| 4644301298 | COVER PLATE | Protects internal components |
| 4644106300 | SHIFT SYSTEM | Controls gear engagement |
| 4644306500 | COVER PLATE | Secondary cover for access ports |
| 4644159300 | SHIFT SYSTEM | Alternate shift mechanism |
| 4644306560 | VALVE BLOCK | Hydraulic control unit |
