Overview
The ZF 4616.103.414 OUTPUT for WG65 is a critical driveline component engineered to transfer torque from the transmission’s planetary gearset to the output flange or driveshaft. Positioned at the rear of the WG65 series housing, this OEM genuine part ensures precise rotational alignment and load distribution under heavy-duty conditions. The SKU 4616.103.414 is manufactured to ZF’s exacting tolerances, providing a direct replacement that restores factory performance in commercial and off-highway applications. When installed alongside a TRANSMISSION HOUSING (4616101106), this output component forms the final mechanical link in the power flow, making it indispensable for reliable vehicle operation.
Symptoms of Failure
- Oil leaks at the rear seal area – Worn splines or bearing surfaces on the 4616.103.414 can cause seal misalignment, leading to visible fluid drips beneath the transmission bell housing.
- Driveline vibration during acceleration – A damaged output shaft or flange face creates imbalance, resulting in shuddering or humming that intensifies under load.
- Intermittent gear slippage or delayed engagement – Excessive play in the output assembly reduces torque transfer efficiency, causing the transmission to hesitate when shifting into forward or reverse.
- Metallic debris in transmission fluid – Spalling or pitting on the output’s hardened steel surface contaminates the oil, often detected during routine filter changes.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4616.103.414 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 2.85 kg (6.28 lbs) |
| Overall Length | 198 mm |
| Flange Diameter | 120 mm |
| Spline Count | 21 involute splines |
| OEM Reference | ZF 4616.103.414 |
| Torque Capacity | 1,200 Nm (885 lb-ft) |
Compatibility
This output assembly is specifically engineered for the ZF WG65 series, including models such as the WG65, WG80, WG100, WG120, WG150, WG180, and WG200. It also fits select variants of the ZF Ecomat 4HP and 5HP ranges where the output flange interface matches the WG65 pattern. Always verify spline count and flange bolt pattern against your existing unit. For a complete rebuild, pair this part with the HEXAGON SCREW (0636011038), HEXAGON SCREW (0636011118), and HEXAGON SCREW (0636016015) to secure the housing and output cover correctly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101106 | TRANSMISSION HOUSING | Encloses and supports gear train and output shaft |
| 0636011038 | HEXAGON SCREW | Fastens housing to bell housing |
| 0636011118 | HEXAGON SCREW | Secures output cover plate |
| 0636016015 | HEXAGON SCREW | Mounts output flange to shaft |
| 0631306085 | CYLINDRICAL PIN | Aligns housing halves during assembly |
| 0634313118 | O-RING | Seals output shaft bore against oil leaks |
| 0636304019 | SCREW PLUG | Closes oil drain or test ports |
| 0634801152 | SEALING RING | Prevents fluid bypass at plug interfaces |
| 0732611049 | FILTER INSERT | Traps debris in lubrication circuit |
| 0634303718 | O-RING | Seals filter housing cover |
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