Overview
The ZF 0730.005.552 SHIM is a precision-engineered adjustment component designed exclusively for the WG 201 Series transmission. This OEM genuine shim sits between the transmission housing and the clutch assembly to establish critical axial clearances and preload tolerances. By compensating for manufacturing tolerances, the 0730.005.552 ensures correct gear engagement and oil flow paths. It is often replaced during a full rebuild alongside the 4644101203: TRANSMISSION HOUSING or the 4644301382: TRANSMISSION HOUSING to restore factory-specified end-play.
Symptoms of Failure
- Excessive axial play or clunking – A worn or collapsed shim allows the shaft to move longitudinally, producing a metallic knock during acceleration or deceleration.
- Oil leaks at the housing joint – When the shim degrades, the seal between the 4644301189: THREADED BUSH and the housing face can be compromised, leading to fluid seepage.
- Delayed or harsh shifting – Incorrect clearance alters clutch pack stack height, causing sluggish engagement or abrupt gear changes under load.
- Vibration at highway speeds – Loss of shim thickness permits driveline oscillation, felt as a persistent shudder in the 40–60 mph range.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0730.005.552 |
| Material | Hardened spring steel (C67S) |
| Thickness | 0.50 mm (0.0197 in) |
| Outer Diameter | 68.0 mm |
| Inner Diameter | 42.0 mm |
| Weight | 12 g |
| OEM Reference | ZF 0730.005.552 |
| Surface Finish | Phosphate coated |
Compatibility
This shim is engineered for the ZF WG 201 Series and its direct derivatives. It is commonly used in WG180, WG200, and WG211 transmissions found in off-highway trucks, loaders, and agricultural machinery. Always verify stack height requirements when pairing with the 0636302005: SCREW PLUG and the 0634306198: O-RING to prevent over-compression.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101203 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4644301382 | TRANSMISSION HOUSING | Alternate housing variant for WG200 |
| 4644301189 | THREADED BUSH | Bearing support and oil passage |
| 0636302005 | SCREW PLUG | Seals hydraulic test ports |
| 0634306198 | O-RING | Fluid seal between components |
| 0634801098 | SEALING RING | Static seal for housing joints |
| 0730365067 | TYPE PLATE | Identification label for transmission |
| 0631311009 | GROOVED STUD | Alignment dowel for housing |
| 4644301161 | COVER PLATE | Access cover for valve body |
| 0636100621 | HEXAGON SCREW | Fastener for housing assembly |
