Overview
The ZF 2093.122.015 PUMP DRIVE is a critical OEM genuine component engineered to transfer mechanical power from the transmission to the hydraulic pump system. Positioned directly on the PTO (Power Take-Off) aperture of the transmission housing, this pump drive ensures consistent oil flow for clutch actuation and lubrication circuits. As a direct-fit replacement for WG100, WG130, and WG131 series, the SKU 2093.122.015 guarantees precise gear mesh and minimal parasitic loss. It interfaces seamlessly with the 2093101052 HOUSING and the 2093298063 TRANSMISSION HOUSING to maintain hydraulic integrity under heavy loads.
Symptoms of Failure
- Intermittent hydraulic pressure loss: Worn pump drive gears cause erratic oil delivery, leading to delayed gear engagement or clutch chatter during low-speed maneuvers.
- Oil seepage around the PTO mounting flange: Degraded seals on the pump drive shaft allow transmission fluid to weep externally, leaving visible drips under the vehicle after extended operation.
- Whining or grinding noise from the pump area: Bearing wear inside the 2093.122.015 produces a high-pitched whine that intensifies with engine RPM, often mistaken for pump cavitation.
- Reduced hydraulic flow at idle: A failing drive cannot maintain sufficient pump speed, causing steering or implement functions to become sluggish when the engine is at low RPM.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.122.015 |
| Material | Hardened alloy steel (gear) / Cast iron (body) |
| Weight | 2.4 kg (5.3 lbs) |
| Overall Length | 142 mm |
| Mounting Bolt Pattern | 4-hole, 80 mm spacing |
| OEM Reference | ZF 2093.122.015 |
| Max Input Torque | 180 Nm |
| Seal Type | Viton dual-lip (integrated) |
Compatibility
This pump drive is specifically validated for ZF WG-series transmissions, including the WG100, WG130, and WG131 models. It is also compatible with the WG180 and WG200 series when used with the appropriate 2093301069 TRANSMISSION HOUSING. For installations requiring a sealed hydraulic circuit, pair this drive with the 4475280015 SCREW PLUG to prevent fluid bypass. Always verify spline count and pump displacement before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093101052 | HOUSING | Encloses the pump drive gear set |
| 2093298063 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 2093301069 | TRANSMISSION HOUSING | Alternate housing for WG180/WG200 |
| 4475280015 | SCREW PLUG | Seals unused PTO port openings |
| 0730365092 | TYPE PLATE | Identification label for transmission model |
| 4475280150 | SCREW PLUG | High-pressure port sealing plug |
| 0634304731 | O-RING | Seals pump drive to housing interface |
| 2093301033 | COVER | Protects PTO aperture when unused |
| 0636015073 | HEXAGON SCREW | Fastens pump drive to housing |
| 0634314235 | O-RING | Secondary seal for cover plate |
Frequently Asked Questions
Q: Can the 2093.122.015 be used on a ZF WG180 without modification?
A: Yes, but you must also install the 2093301069 TRANSMISSION HOUSING to match the bolt pattern and shaft depth. Always confirm spline compatibility with your pump model.
Q: What torque should I apply to the mounting screws?
A: Tighten the 0636015073 HEXAGON SCREW to 45 Nm (33 ft-lbs) using a cross-tightening sequence. Replace the 0634304731 O-RING each time the drive is removed.
Q: How do I identify a genuine ZF 2093.122.015 versus a counterfeit?
A: Genuine parts have a laser-etched part number on the gear face and a 0730365092 TYPE PLATE affixed to the packaging. Counterfeits often lack the precise chamfer on the input spline.
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Phone: +86 158 2286 3467 |
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