Overview
The ZF 0730.007.628 SHIM is a precision-engineered adjustment component designed specifically for the WG 65 series heavy-duty transmissions. This OEM genuine shim sits between the TRANSMISSION HOUSING and the planetary gear assembly, where it controls axial clearance and preload tolerances. By maintaining exact spacing, this shim prevents gear train misalignment and ensures optimal load distribution across the transmission. The SKU 0730.007.628 is manufactured to ZF’s original specifications, guaranteeing a perfect fit and long service life in demanding industrial applications.
Symptoms of Failure
- Excessive axial play in the output shaft – When the shim wears or compresses beyond tolerance, operators may notice increased end float, leading to rough shifting and driveline vibration during acceleration.
- Premature bearing noise from the planetary section – A worn 0730.007.628 shim allows the planetary carrier to shift, causing uneven bearing loading and a distinct whining or grinding sound under load.
- Oil seepage at the housing joint – Incorrect shim thickness can distort the HOUSING seal surface, resulting in gradual ATF leaks around the main case split line.
- Intermittent gear slippage in forward ranges – Loss of proper shim stack height reduces clutch pack clamping force, causing momentary power loss during torque converter lockup.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.007.628 |
| Material | Case-hardened steel (DIN 1.3505 equivalent) |
| Outer Diameter | 62.0 mm |
| Inner Diameter | 48.5 mm |
| Thickness | 0.628 mm (nominal) |
| Weight | 12 grams |
| OEM Reference | ZF 0730.007.628 |
| Surface Finish | Ground, Ra ≤ 0.8 µm |
Compatibility
This shim is engineered for the ZF WG 65 series transmission family. It is directly compatible with WG65, WG80, WG100, WG120, WG150, WG180, and WG200 models that utilize the planetary gear set configuration. The 0730.007.628 shim is also used in certain WG 65 variants equipped with the HOUSING assembly revision C and later. Always verify the shim stack height during rebuild; this part is typically installed alongside the HEXAGON SCREW that secures the bearing retainer plate.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101066 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 0636011118 | HEXAGON SCREW | Fastener for bearing retainer plate |
| 4616301307 | HOUSING | Rear housing section for planetary carrier |
| 4616301309 | HOUSING | Front housing section for input shaft |
| 0636011038 | HEXAGON SCREW | M8x25 flange bolt for housing joint |
| 0636016015 | HEXAGON SCREW | M10x30 bolt for oil pump mounting |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing centering |
| 0634313118 | O-RING | Seal for oil passage between housings |
| 0636304019 | SCREW PLUG | M18x1.5 plug for pressure test port |
| 0634801152 | SEALING RING | Copper washer for drain plug sealing |
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