Overview
The ZF 4616.103.422 OUTPUT for WG65 is a critical driveline component engineered to transfer rotational force from the transmission’s planetary gearset to the output shaft flange. Positioned at the rear of the WG 65 Series housing, this OEM genuine part ensures precise torque delivery under heavy-duty cycles. The SKU 4616.103.422 is machined from high-strength alloy steel to withstand continuous load in construction and agricultural machinery. When paired with a robust TRANSMISSION HOUSING, this output assembly maintains axial alignment and reduces vibration across the drivetrain.
Symptoms of Failure
- Oil seepage at the rear seal interface: A worn 4616.103.422 output often causes transmission fluid to weep past the seal, leaving visible drips under the vehicle after parking.
- Intermittent gear slipping under load: When the output splines degrade, the shaft loses positive engagement with the clutch pack, leading to hesitation during uphill or loaded operation.
- Metallic grinding noise during deceleration: Bearing surface wear on this part produces a distinct low-pitched rumble that intensifies as the transmission slows down.
- Excessive end-play in the driveline: A failing output allows measurable axial movement at the flange, which can be felt as a clunk when shifting between forward and reverse.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4616.103.422 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 285 mm |
| Spline Diameter | 42 mm (involute spline) |
| Weight | 4.8 kg |
| OEM Reference | ZF 4616.103.422 |
| Surface Treatment | Black oxide + phosphate coating |
| Torque Capacity | 1,200 Nm (continuous) |
Compatibility
This output is designed for the ZF WG 65 Series, including the WG180, WG200, and WG250 transmission models commonly found in wheel loaders and telehandlers. It also fits select WG 65 variants used in off-highway dump trucks. For secure mounting, always use the correct HEXAGON SCREW (M10x30) along with a HEXAGON SCREW (M12x35) for the flange bracket. The assembly further requires a HEXAGON SCREW (M16x45) to secure the bearing retainer. Verify your transmission’s serial number against the WG 65 parts catalog before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101089 | TRANSMISSION HOUSING | Encloses gearset and supports output shaft |
| 0636011038 | HEXAGON SCREW | Fastens output flange to shaft |
| 0636011118 | HEXAGON SCREW | Secures bearing cover plate |
| 0636016015 | HEXAGON SCREW | Mounts retainer to housing |
| 0631306085 | CYLINDRICAL PIN | Aligns output assembly during installation |
| 0634313118 | O-RING | Seals output shaft bore |
| 0636304019 | SCREW PLUG | Closes oil passage in output hub |
| 0634801152 | SEALING RING | Prevents fluid bypass at flange |
| 0732611049 | FILTER INSERT | Traps debris in output lubrication circuit |
| 0634303718 | O-RING | Seals filter housing interface |
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