Overview
The ZF 0501.214.008 OUTER CLUTCH DISK is a critical friction component engineered for the WG158 and WG200 series transmissions. This OEM genuine part sits within the clutch pack assembly, where it engages and disengages power flow between planetary gear sets. As a wear-sensitive element, the outer clutch disk transfers torque through friction material bonded to a steel core. The SKU 0501.214.008 is precision-machined to ZF’s exacting tolerances, ensuring consistent hydraulic pressure application and smooth gear shifts. When paired with a properly sealed TRANSMISSION HOUSING, this disk maintains optimal oil circulation and prevents premature failure.
Symptoms of Failure
- Delayed or harsh shifting – Worn friction material causes clutch pack slippage, leading to erratic gear engagement under load.
- Burning smell from transmission fluid – Overheated outer clutch disk generates acrid odors as friction material degrades.
- Loss of power during acceleration – Slipping disks reduce torque transfer, especially noticeable in WG200 series transmissions.
- Metallic debris in oil pan – Fragments from the worn disk contaminate fluid, often requiring replacement of the HOUS.FRONT SECT and associated seals.
Technical Specifications
| Parameter | Value |
|---|---|
| Outer Diameter | 214 mm |
| Inner Diameter | 158 mm |
| Thickness | 2.5 mm |
| Material | Sintered bronze on steel core |
| Weight | 0.45 kg |
| OEM Reference | 0501.214.008 |
| Friction Coefficient | 0.12 (dry) / 0.08 (wet) |
| Operating Temperature | -40°C to +150°C |
Compatibility
This outer clutch disk is designed for ZF WG158 and WG200 series transmissions, including models WG180, WG200, and WG158 variants. It is a direct replacement for OEM part 0501.214.008 and fits clutch packs requiring 214 mm outer diameter disks. For complete assembly, ensure the OIL TUBE and HOUSING REAR PART are inspected for wear. This disk is not compatible with WG210 or earlier ZF series without adapter modifications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101023 | TRANSMISSION HOUSING | Encloses clutch pack and oil passages |
| 4656201016 | HOUS.FRONT SECT | Front section housing clutch piston |
| 4656301142 | OIL TUBE | Routes hydraulic fluid to clutch pack |
| 4656201029 | HOUSING REAR PART | Rear section supporting output shaft |
| 0631306816 | CYLINDRICAL PIN | Aligns clutch disk splines |
| 4656301148 | FIXING PLATE | Secures clutch pack stack |
| 0636102489 | CAP SCREW | Fastens housing sections |
| 4656301016 | SCREEN SHEET | Filters debris from oil flow |
| 4656301017 | SCREEN SHEET | Secondary oil filtration element |
| 0636100803 | CAP SCREW | M6 fastener for clutch pack retention |
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