Overview
The ZF 4616.105.051 OUTPUT for WG65 is a critical driveline component engineered to transfer rotational force from the transmission’s planetary gearset to the output flange or driveshaft. Positioned at the rear of the WG 65 series housing, this OEM genuine part ensures precise torque delivery and maintains axial alignment under heavy loads. The SKU 4616.105.051 is machined from high-strength alloy steel to withstand continuous stress in construction, mining, and agricultural machinery. When paired with a robust TRANSMISSION HOUSING (4616101089), this output shaft assembly guarantees reliable power transmission and extended service intervals.
Symptoms of Failure
- Oil leaks around the output seal area – Worn splines or bearing surfaces on the 4616.105.051 can cause seal misalignment, leading to fluid seepage and low transmission oil levels.
- Gear slipping or delayed engagement – Excessive play in the output shaft reduces clutch pack pressure, resulting in erratic shifting or complete loss of drive under load.
- Vibration or driveline shudder – A fatigued output shaft creates rotational imbalance, transmitting harsh vibrations through the chassis during acceleration or deceleration.
- Metallic debris in the oil pan – Flaking or pitting on the shaft surface introduces ferrous particles into the hydraulic circuit, accelerating wear on valves and bearings.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4616.105.051 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 285 mm |
| Output Spline Diameter | 42 mm (24-tooth involute) |
| Weight | 3.8 kg |
| OEM Reference | ZF 4616.105.051 |
| Surface Hardness | 58–62 HRC |
Compatibility
This genuine ZF output shaft is designed specifically for the WG 65 Series transmissions, including models such as WG65, WG80, WG100, WG120, WG150, WG180, and WG200. It is a direct replacement for units used in ZF 4WG-65, 5WG-65, and 6WG-65 variants. For proper installation, always secure the shaft using HEXAGON SCREW (0636011038) and HEXAGON SCREW (0636011118) at the bearing retainer, plus HEXAGON SCREW (0636016015) for the output flange. Verify your transmission model’s serial number before ordering to ensure fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101089 | TRANSMISSION HOUSING | Encloses and supports the output shaft assembly |
| 0636011038 | HEXAGON SCREW | Secures bearing retainer to housing |
| 0636011118 | HEXAGON SCREW | Fastens output flange to shaft |
| 0636016015 | HEXAGON SCREW | Mounts rear cover plate |
| 0631306085 | CYLINDRICAL PIN | Aligns housing and bearing carrier |
| 0634313118 | O-RING | Seals output shaft bore |
| 0636304019 | SCREW PLUG | Closes oil drain port |
| 0634801152 | SEALING RING | Prevents fluid leakage at plug |
| 0732611049 | FILTER INSERT | Traps debris in hydraulic circuit |
| 0634303718 | O-RING | Seals filter housing cover |
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