Overview
The ZF 4616.119.008 PUMP DRIVE is a critical hydraulic component engineered specifically for the WG 65 Series transmission family. This genuine OEM part transfers rotational power from the transmission’s internal geartrain to the hydraulic pump, ensuring consistent oil flow for clutch actuation and lubrication. Positioned within the transmission housing, the pump drive interfaces directly with the 4616101102: TRANSMISSION HOUSING to maintain precise alignment. The SKU 4616.119.008 is machined from high-strength alloy steel to withstand continuous torque loads in heavy-duty commercial vehicles and industrial machinery.
Symptoms of Failure
- Oil pressure drop during gear engagement: A worn pump drive cannot maintain adequate hydraulic pressure, leading to delayed or harsh shifting—often searched as “ZF transmission slow engagement fix.”
- Audible whining or grinding from the pump area: Damaged splines or bearing surfaces produce metallic noises, especially at idle or under load, commonly reported as “WG65 pump drive noise.”
- External oil leaks near the pump mounting flange: Cracks or wear in the drive shaft seal area cause fluid seepage, frequently queried as “ZF transmission pump leak repair.”
- Intermittent loss of hydraulic functions: The pump drive may slip under torque, causing erratic operation of auxiliary systems like PTOs or cooling fans.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4616.119.008 |
| OEM Reference | ZF 4616.119.008 |
| Material | Case-hardened alloy steel (16MnCr5) |
| Weight | 2.85 kg (6.28 lbs) |
| Overall Length | 142 mm |
| Shaft Diameter | 28 mm |
| Spline Count | 14-tooth involute spline |
| Max Torque Capacity | 320 Nm |
| Sealing Surface | Ground and nitrided |
Compatibility
This pump drive is designed for the ZF WG 65 Series transmissions, including models such as WG180, WG200, WG210, WG240, and WG250. It is also compatible with certain Ecomat 4HP/5HP variants that share the same pump drive interface. Always verify your transmission model and serial number before ordering. For secure installation, use the 0636011038: HEXAGON SCREW and 0636011118: HEXAGON SCREW to fasten the drive to the housing, along with the 0636016015: HEXAGON SCREW for the pump mounting bracket.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101102 | TRANSMISSION HOUSING | Encloses and supports all internal transmission components |
| 0636011038 | HEXAGON SCREW | Secures pump drive to housing |
| 0636011118 | HEXAGON SCREW | Fastens pump drive mounting flange |
| 0636016015 | HEXAGON SCREW | Mounts pump bracket to transmission |
| 0631306085 | CYLINDRICAL PIN | Aligns pump drive during assembly |
| 0634313118 | O-RING | Seals pump drive to housing interface |
| 0636304019 | SCREW PLUG | Closes hydraulic test ports |
| 0634801152 | SEALING RING | Prevents oil leakage at plug connections |
| 0732611049 | FILTER INSERT | Filters hydraulic oil returning from pump |
| 0634303718 | O-RING | Seals filter housing cover |
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