Overview
The ZF 1203.306.014 SLIDING PAD is a critical wear component engineered specifically for the WG65 series transmission. Positioned within the clutch or shift mechanism, this OEM genuine part acts as a low-friction interface, reducing metal-on-metal contact during gear engagement. The SKU 1203.306.014 ensures precise dimensional tolerances, allowing smooth axial movement of the sliding sleeve without binding. When installed correctly, this pad maintains consistent hydraulic pressure distribution and prevents premature wear on the TRANSMISSION HOUSING.
Symptoms of Failure
- Hard shifting or gear grinding: A worn sliding pad creates excessive play, causing delayed or incomplete gear engagement, especially under load.
- Metallic debris in transmission fluid: As the pad deteriorates, small particles contaminate the oil, often detected during routine filter changes.
- Intermittent clutch slip: Reduced pad thickness alters the actuation stroke, leading to inconsistent torque transfer and RPM flare-ups.
- Unusual rattle or vibration: A loose or chipped pad generates noise during neutral idle or low-speed operation, indicating imminent failure.
Technical Specifications
| Material | Sintered bronze with PTFE overlay |
| Outer Diameter | 42.5 mm |
| Inner Diameter | 28.0 mm |
| Thickness | 6.2 mm |
| Weight | 0.018 kg |
| OEM Reference | ZF 1203.306.014 |
| Operating Temperature Range | -40°C to +150°C |
Compatibility
This sliding pad is primarily designed for the ZF WG65 series, but it also fits select models in the WG180 and WG200 families when used with the correct HEXAGON SCREW (0636011038) and HEXAGON SCREW (0636011118). Always verify the pad’s orientation against the shift fork assembly. For WG65 applications, pair this part with the HEXAGON SCREW (0636016015) to secure the pad carrier. Cross-reference with ZF technical bulletins for WG180 and WG200 variants using a 6-speed planetary layout.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101059 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 0636011038 | HEXAGON SCREW | Fastener for valve body cover |
| 0636011118 | HEXAGON SCREW | Mounting bolt for clutch pack |
| 0636016015 | HEXAGON SCREW | Secures sliding pad carrier |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing |
| 0634313118 | O-RING | Seals oil passage between plates |
| 0636304019 | SCREW PLUG | Closes test port on housing |
| 0634801152 | SEALING RING | Prevents fluid bypass at shaft |
| 0732611049 | FILTER INSERT | Traps debris from sliding pad wear |
| 0634303718 | O-RING | Gasket for oil pan interface |
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