Overview
The ZF 4646.103.415 OUTPUT for WG250 is a critical driveline component engineered to transfer rotational force from the transmission’s final planetary gearset to the output flange or driveshaft. Positioned at the rear of the WG 250 series housing, this OEM genuine part ensures precise torque delivery and maintains proper alignment within the power flow path. The SKU 4646.103.415 is manufactured to ZF’s exacting tolerances, featuring hardened steel construction to withstand high cyclic loads in heavy-duty industrial applications. When paired with the TRANSMISSION HOUSING, this output component forms a sealed assembly that prevents contamination ingress while supporting the output shaft’s axial and radial loads.
Symptoms of Failure
- Output flange oil seepage: Worn seals or bearing surfaces on the 4646.103.415 allow transmission fluid to escape, leaving visible drips under the vehicle or machine. This often appears as a slow leak around the output shaft area.
- Driveline vibration under load: Degraded splines or a cracked output hub cause rotational imbalance, resulting in noticeable shuddering or humming during acceleration, particularly at highway speeds.
- Intermittent gear slipping or delayed engagement: A failing output component can disrupt the torque path, leading to momentary loss of drive power or a lag when shifting between forward and reverse gears.
- Metallic debris in transmission fluid: Internal wear of the output’s bearing race or spline teeth generates fine metal particles, which may be detected during routine fluid changes or filter inspections.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4646.103.415 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 4.2 kg (9.3 lbs) |
| Outer Diameter | 145 mm |
| Overall Length | 112 mm |
| Spline Count | 24 involute splines (DIN 5480) |
| OEM Reference | ZF 4646.103.415 |
| Torque Capacity | 2,800 Nm (2,065 lb-ft) |
Compatibility
This output component is designed primarily for the ZF WG 250 series, but its spline geometry and mounting pattern also suit the WG180, WG200, and WG240 transmissions used in off-highway trucks, wheel loaders, and agricultural tractors. Always verify the output shaft diameter and flange bolt pattern against your specific transmission model. For complete assembly, this part integrates with the HOUSING and the COVER to create a sealed rear section. Secure installation requires the HEXAGON SCREW fasteners to maintain proper clamping force.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4646101040 | TRANSMISSION HOUSING | Encloses gearset and supports output shaft |
| 4646301090 | HOUSING | Rear housing section for output bearing |
| 4646301240 | COVER | Seals rear housing and retains output seal |
| 0636015304 | HEXAGON SCREW | Fastens cover to housing assembly |
| 0636101828 | CAP SCREW | Secures output flange to shaft |
| 4646301102 | COVER SHEET | Protective plate over output area |
| 4646301098 | COVER SHEET | Secondary cover for debris exclusion |
| 0730365067 | TYPE PLATE | Identification label for transmission model |
| 0631311009 | GROOVED STUD | Alignment dowel for housing positioning |
| 0636101193 | CAP SCREW | Mounting bolt for output bearing retainer |
