Overview
The ZF 4108.102.058 INPUT is a critical OEM genuine component designed to manage torque transfer from the engine directly into the transmission assembly. As the primary point of engagement, this input shaft assembly ensures smooth power delivery and rotational alignment within the drivetrain. The SKU 4108.102.058 is precision-machined to ZF factory tolerances, making it essential for maintaining the structural integrity of the gear train in heavy-duty construction machinery. This part interfaces directly with the 4108101074: HOUSING and the 4108201252: HOUSING, forming a sealed unit that protects internal gears from contamination.
Symptoms of Failure
When the ZF 4108.102.058 INPUT begins to wear, operators often notice distinct operational issues. 1. Transmission slipping under load is a primary indicator, where the machine loses power during excavation or lifting. 2. Excessive axial play or vibration at the input flange suggests bearing surface degradation. 3. Oil seepage around the bell housing frequently occurs when the shaft seal surface becomes scored. 4. Grinding noises during gear engagement point to spline wear on the input shaft, which can also damage the 4108301304: BEARING COVER and the 4108306173: GASKET if left unaddressed.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4108.102.058 |
| OEM Reference | ZF 4108.102.058 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 285 mm (estimated) |
| Spline Diameter | 42 mm (estimated) |
| Net Weight | 3.8 kg (estimated) |
| Surface Treatment | Black oxide / phosphate coating |
Compatibility
This ZF 4108.102.058 INPUT is engineered for use in ZF’s heavy-duty powershift transmission series. Based on the part type and spline configuration, it is compatible with the following models: WG180, WG200, WG210, and WG250. These transmissions are commonly found in wheel loaders, dozers, and graders from manufacturers such as Caterpillar, Volvo, and Liebherr. Always verify the input shaft length and pilot bearing diameter against your specific transmission serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101074 | HOUSING | Encloses the input shaft and supports bearing alignment |
| 4108201252 | HOUSING | Secondary housing for clutch pack and oil routing |
| 4108301304 | BEARING COVER | Seals and retains the input shaft bearing |
| 4108306173 | GASKET | Prevents oil leaks between mating surfaces |
| 0730365280 | TYPE PLATE | Identification tag for transmission model |
| 0631311009 | GROOVED STUD | Fastener for securing housing components |
| 4108301428 | INPUT SHAFT | Alternate shaft variant for specific gear ratios |
| 0750116277 | BALL BEARING | Supports radial and axial loads on the shaft |
| 0630502039 | RETAINING RING | Locks bearing in position on the shaft |
| 0630531064 | RETAINING RING | Secures outer bearing race in housing |
