Overview
The ZF 4616.000.162 4 WG 65 Powershift Transmission Assembly is a complete, remanufactured unit designed for heavy-duty off-highway applications. This assembly integrates the torque converter, clutch packs, and planetary gear sets into a single, ready-to-install package. As the core of the WG 65 Series drivetrain, it manages power distribution from the engine to the output shaft. The SKU 4616.000.162 identifies this specific build configuration, which includes the updated valve body and reinforced drum assembly for improved durability under high-load cycles. This unit replaces the need for individual component rebuilds, offering a direct bolt-in solution for ZF powershift systems.
Symptoms of Failure
When the ZF 4616.000.162 assembly begins to fail, operators typically notice these specific performance issues:
- Delayed engagement or gear slippage: The transmission hesitates before moving forward or reverse, or the engine revs without proportional vehicle movement, indicating worn clutch discs or seal degradation inside the unit.
- External oil leaks near the bell housing: Fluid seeps from the joint between the transmission housing and the converter housing, often caused by a compromised O-RING (0634313118) or a cracked SEALING RING (0634801152).
- Erratic shifting or harsh engagement: The transmission slams into gear or hunts between ratios due to internal pressure loss, frequently linked to a clogged FILTER INSERT (0732611049) or a failing valve body.
- Overheating under normal load: The transmission temperature rises rapidly during operation, often a result of internal wear debris blocking the cooler circuit or a failing torque converter stator.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4616.000.162 |
| Assembly Type | Complete Powershift Transmission (4 WG 65) |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | High-strength cast iron (GGG-40) |
| OEM Reference | ZF 4616.000.162 |
| Bolt Torque (Housing) | 80 Nm (for HEXAGON SCREW 0636011038) |
Compatibility
This complete assembly is engineered for the ZF WG 65 Series transmission family. It is a direct fit for models including the WG180, WG200, and WG210 used in telehandlers, wheel loaders, and industrial tractors. The unit also retrofits into older WG150 and WG160 chassis with minor adapter plate modifications. For proper installation, the assembly must be secured using the correct fasteners: the HEXAGON SCREW (0636011118) for the bell housing and the HEXAGON SCREW (0636016015) for the rear mount. Always verify the alignment dowels using a CYLINDRICAL PIN (0631306085) before final torque.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101065 | TRANSMISSION HOUSING | Main structural casing for gear and shaft support |
| 0636011038 | HEXAGON SCREW | M12 bolt for housing-to-converter joint |
| 0636011118 | HEXAGON SCREW | M14 bolt for bell housing attachment |
| 0636016015 | HEXAGON SCREW | M16 bolt for rear mounting flange |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing centering |
| 0634313118 | O-RING | Seals the oil pump to housing interface |
| 0636304019 | SCREW PLUG | Closes the pressure test port |
| 0634801152 | SEALING RING | Static seal for the output shaft cover |
| 0732611049 | FILTER INSERT | Internal hydraulic oil filtration element |
| 0634303718 | O-RING | Seals the filter housing cap |
