Overview
The ZF 0501.320.268 COVER is a critical sealing component designed for heavy-duty construction machinery transmissions. This OEM genuine part encloses the hydraulic control unit within the transmission housing, preventing contamination ingress and maintaining proper oil pressure. The SKU 0501.320.268 is precision-machined to ZF’s exacting tolerances, ensuring a leak-proof interface between the HOUSING (4108101158) and the valve body assembly. By securing the internal components, this cover directly supports the reliable operation of the MOTOR (0501215907) and the ROLLER BEARING (0735370298) within the transmission.
Symptoms of Failure
- External oil seepage around the transmission casing: A worn or cracked cover gasket surface leads to visible hydraulic fluid leaks, often noticed as drips beneath the equipment after shutdown.
- Erratic gear engagement or delayed shifting: When the cover loses its seal integrity, internal pressure drops, causing sluggish clutch pack actuation and inconsistent gear changes.
- Contaminated transmission fluid: A compromised cover allows dirt and debris to enter the system, accelerating wear on the HOUSING (0501317874) and other precision components.
- Increased operating noise from the transmission: Loss of structural rigidity from a deformed cover can amplify vibrations and bearing chatter, particularly near the roller bearing assembly.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number / SKU | 0501.320.268 |
| Material | Die-cast aluminum alloy (A380) |
| Weight | 1.45 kg (3.2 lbs) |
| Overall Dimensions | 280 mm x 180 mm x 45 mm |
| Bolt Hole Pattern | 8 x M10 threaded holes on 240 mm centers |
| Surface Finish | Anodized with machined sealing face |
| OEM Reference | ZF 0501.320.268 |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This genuine ZF cover is engineered for use in the following transmission models commonly found in construction machinery such as wheel loaders, graders, and telehandlers:
- ZF WG180
- ZF WG200
- ZF 4WG200
- ZF 6WG200
- ZF Ergopower series (select variants)
Always verify your transmission serial number before installation. The cover interfaces directly with the HOUSING (4108101158) and supports the MOTOR (0501215907) mounting flange.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101158 | HOUSING | Main transmission casing that encloses gear sets |
| 0501215907 | MOTOR | Hydraulic drive motor for pump engagement |
| 0735370298 | ROLLER BEARING | Supports rotating shafts within the housing |
| 0501317874 | HOUSING | Secondary housing for valve body assembly |
| 0501317875 | ROLLER | Guides shift fork movement |
| 0501213227 | PISTON | Hydraulic piston for clutch actuation |
| 0501317876 | COMPRESSION SPRING | Returns piston to neutral position |
| 0501314823 | BUSH | Wear-resistant bushing for pivot points |
| 0501314929 | CAM DISC | Controls valve timing sequence |
| 0501324172 | HOUSING | Rear housing for output shaft support |
