Overview
The ZF 4616.000.250 4 WG 65 Powershift Transmission Assembly is a complete, factory-grade unit designed for heavy-duty off-highway machinery. This assembly integrates the clutch packs, planetary gear sets, and hydraulic control system into a single drop-in replacement. As the core of the WG 65 series, it manages torque distribution across four forward and reverse speeds. The SKU 4616.000.250 identifies this specific complete unit, which is precision-balanced to eliminate vibration and ensure seamless engagement under load. It mounts directly to the TRANSMISSION HOUSING to form a sealed, oil-tight drivetrain module.
Symptoms of Failure
- Delayed or harsh engagement: When the unit wears, hydraulic pressure drops, causing a noticeable lag or jarring shift between forward and reverse gears.
- Internal oil leaks and puddling: Degraded seals within the assembly allow transmission fluid to escape, often pooling under the bell housing or near the output flange.
- Gear slipping under load: Worn clutch discs fail to hold torque, resulting in RPM flare without corresponding vehicle movement, especially on inclines.
- Unusual whining or grinding noises: Bearing fatigue or damaged planetary gears produce a high-pitched whine or metallic grinding during operation, indicating imminent failure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4616.000.250 |
| Assembly Type | Complete Powershift Transmission |
| Series | WG 65 |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 620 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | Cast Iron (GGG-40) |
| OEM Reference | ZF 4616.000.250 |
| Max Input Torque | 650 Nm |
| Oil Capacity | 12.5 liters |
Compatibility
This complete unit is engineered for the WG 65 transmission family, which includes models such as the WG180, WG200, and WG210. It is also backward-compatible with earlier WG 60 series variants when used with the appropriate adapter kit. The assembly is commonly found in telescopic handlers, wheel loaders, and agricultural tractors from manufacturers like Manitou, JCB, and Claas. For a secure fit, always verify the mounting bolt pattern against your existing HEXAGON SCREW (M10x30) and the HEXAGON SCREW (M12x35) used on the bell housing. The HEXAGON SCREW (M16x50) secures the output flange to the drive shaft.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101106 | TRANSMISSION HOUSING | Encloses and supports the gear train |
| 0636011038 | HEXAGON SCREW | M10 fastener for housing cover |
| 0636011118 | HEXAGON SCREW | M12 fastener for clutch pack |
| 0636016015 | HEXAGON SCREW | M16 fastener for output flange |
| 0631306085 | CYLINDRICAL PIN | Aligns housing halves |
| 0634313118 | O-RING | Seals hydraulic passages |
| 0636304019 | SCREW PLUG | Closes oil drain port |
| 0634801152 | SEALING RING | Prevents fluid leaks at joints |
| 0732611049 | FILTER INSERT | Traps debris in oil circuit |
| 0634303718 | O-RING | Seals filter housing cap |
