Overview
The ZF 4616.103.425 OUTPUT for WG65 is a critical driveline component engineered to transfer rotational torque from the transmission’s planetary gearset to the output shaft. Positioned at the rear of the WG 65 series housing, this OEM genuine part ensures precise alignment and load distribution during high-torque operations. The SKU 4616.103.425 is machined from high-strength alloy steel to withstand continuous stress in heavy-duty commercial vehicles. When installed correctly, it interfaces directly with the TRANSMISSION HOUSING (4616101140) to maintain structural integrity under peak loads.
Symptoms of Failure
- Oil leaks near the rear seal area: A worn 4616.103.425 output can cause fluid migration past the seal, leading to visible drips under the transmission bell housing.
- Gear slipping under load: Degraded splines on the output component result in intermittent power loss, especially during uphill climbs or sudden acceleration.
- Vibration or driveline shudder: Excessive play in the output hub creates harmonic vibrations that intensify at highway speeds, often misdiagnosed as universal joint failure.
- Metallic grinding noises: Advanced wear produces a distinct grinding sound from the rear of the transmission, indicating imminent spline stripping.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4616.103.425 |
| Material | Alloy steel (SAE 4140 equivalent) |
| Weight | 2.85 kg (6.28 lbs) |
| Outer Diameter | 95 mm |
| Overall Length | 145 mm |
| Spline Count | 24 internal splines |
| Surface Hardness | HRC 58-62 (induction hardened) |
| OEM Reference | ZF 4616.103.425 |
Compatibility
This output component is specifically designed for the ZF WG 65 series transmissions. It is also compatible with the following ZF models when used with the correct HEXAGON SCREW (0636011118) and HOUSING (4616301304) or HOUSING (4616301309):
- ZF WG180
- ZF WG200
- ZF WG210
- ZF WG65 (direct fit)
Always verify the output shaft spline count and housing bore diameter before installation. The 4616.103.425 output works in conjunction with the HEXAGON SCREW (0636011038) and HEXAGON SCREW (0636016015) for secure mounting.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101140 | TRANSMISSION HOUSING | Encloses gearset and supports output assembly |
| 0636011118 | HEXAGON SCREW | Secures output flange to housing |
| 4616301304 | HOUSING | Intermediate housing for output shaft support |
| 4616301309 | HOUSING | Alternate housing variant for WG65 |
| 0636011038 | HEXAGON SCREW | Mounting bolt for housing attachment |
| 0636016015 | HEXAGON SCREW | High-torque fastener for output assembly |
| 0631306085 | CYLINDRICAL PIN | Alignment pin for precise output positioning |
| 0634313118 | O-RING | Seals output housing joint against fluid leaks |
| 0636304019 | SCREW PLUG | Closes oil passage in output housing |
| 0634801152 | SEALING RING | Prevents oil migration at output shaft exit |
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