Overview
The ZF 0501.214.011 Outer Clutch Disk is a critical friction component engineered specifically for the WG158 and WG200 series transmissions. This OEM genuine part sits within the multi-plate clutch pack assembly, where it transfers torque between rotating and stationary elements during gear engagement. The disk’s steel core and friction lining are designed to withstand high thermal loads and repetitive cycling, ensuring consistent shift quality. The SKU 0501.214.011 is precision-machined to match ZF’s original tolerances, making it a direct replacement for worn units in heavy-duty drivelines.
Symptoms of Failure
- Delayed or harsh gear engagement: When the outer clutch disk wears, the clutch pack fails to lock up smoothly, causing a noticeable lag or jolt when shifting from neutral to drive or between forward gears.
- Transmission slipping under load: A worn 0501.214.011 disk reduces friction capacity, leading to RPM flare or power loss during acceleration, especially on inclines or under heavy payloads.
- Burning smell or discolored fluid: Excessive heat from slipping friction surfaces can degrade the transmission fluid, producing a burnt odor and darkening the oil.
- Metallic debris in the oil pan: As the friction material wears away, fine particles or small metal shavings may appear in the fluid, indicating imminent clutch pack failure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0501.214.011 |
| Outer Diameter | Approx. 180 mm |
| Inner Diameter | Approx. 120 mm |
| Thickness | 2.5 mm (new) |
| Material | Steel core with sintered bronze friction lining |
| Weight | 0.45 kg |
| OEM Reference | ZF 0501.214.011 |
| Application | WG158, WG200 series |
Compatibility
This outer clutch disk is primarily designed for the ZF WG158 transmission, but it also fits the WG200 series due to shared clutch pack dimensions. Compatible models include WG158, WG180, and WG200. Always verify the clutch pack stack height and spline count before installation. For a complete rebuild, consider inspecting the TRANSMISSION HOUSING for cracks, and replace the HOUS.FRONT SECT if worn. The OIL TUBE must be clear of blockages to ensure proper lubrication, and the HOUSING REAR PART should be checked for warpage.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101023 | TRANSMISSION HOUSING | Encloses the gear train and clutch assembly |
| 4656201016 | HOUS.FRONT SECT | Front section of the transmission housing |
| 4656301142 | OIL TUBE | Directs lubrication to clutch packs and bearings |
| 4656201029 | HOUSING REAR PART | Rear section of the transmission housing |
| 0631306816 | CYLINDRICAL PIN | Aligns housing sections during assembly |
| 4656301148 | FIXING PLATE | Secures clutch pack components |
| 0636102489 | CAP SCREW | Fastens housing and cover plates |
| 4656301016 | SCREEN SHEET | Filters debris from oil flow |
| 4656301017 | SCREEN SHEET | Secondary oil filtration screen |
| 0636100803 | CAP SCREW | Mounting bolt for clutch pack retainers |
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