Overview
The ZF 0730.103.422 SHIM is a precision-engineered spacer component designed for critical axial clearance adjustment within the WG65, WG150, WG180, WG200, and WG201 series transmissions. This OEM genuine part sits between the TRANSMISSION HOUSING and the planetary gear set, ensuring correct end-play tolerances are maintained during assembly or overhaul. The SKU 0730.103.422 is manufactured to exact ZF specifications, providing the necessary thickness to prevent gear train misalignment and bearing preload errors. Without this shim, proper load distribution across the transmission’s rotating elements cannot be guaranteed, leading to premature component wear.
Symptoms of Failure
- Transmission oil leaks at housing seam: When the 0730.103.422 shim compresses or deforms beyond specification, the gap between the TRANSMISSION HOUSING and the cover plate increases, allowing pressurized fluid to escape. This often presents as a slow drip near the WG65 bell housing.
- Gear slipping under load: A worn or incorrect shim thickness reduces clutch pack clamping force, causing intermittent slipping during torque converter lockup. Operators report hesitation when climbing grades or towing heavy loads.
- Abnormal whining or grinding noise: Insufficient axial clearance from a collapsed shim forces planetary gears into hard contact with housing walls. This metallic noise is most audible at low RPM in WG200 and WG180 series units.
- Erratic shift timing: The shim’s degradation alters valve body alignment, leading to delayed or harsh shifts. This symptom is frequently misdiagnosed as a solenoid failure in WG201 transmissions.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.103.422 |
| Material | Hardened spring steel (C67S) |
| Thickness | 0.50 mm (nominal) |
| Outer Diameter | 42.0 mm |
| Inner Diameter | 28.5 mm |
| Weight | 8 grams |
| OEM Reference | ZF 0730.103.422 |
| Surface Finish | Phosphate coated, oiled |
Compatibility
This shim is specifically validated for the following ZF transmission families: WG65 Series, WG150 Series, WG180 Series, WG200 Series, and WG201 Series. It is a direct replacement for the original equipment shim used in the planetary carrier-to-housing interface. When installing the 0730.103.422, always pair it with new HEXAGON SCREW (M8x25) and HEXAGON SCREW (M8x30) fasteners to ensure proper clamping force. For the WG200 and WG201 models, also replace the HEXAGON SCREW (M10x35) securing the bearing retainer. Verify clearance with a feeler gauge after installation; stack multiple shims if necessary, but never exceed 0.15 mm total deviation from factory specification.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101065 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 0636011038 | HEXAGON SCREW | M8x25 fastener for housing cover |
| 0636011118 | HEXAGON SCREW | M8x30 fastener for valve body |
| 0636016015 | HEXAGON SCREW | M10x35 fastener for bearing retainer |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing halves |
| 0634313118 | O-RING | Seals oil passage between housing sections |
| 0636304019 | SCREW PLUG | Closes pressure test ports |
| 0634801152 | SEALING RING | Copper gasket for drain plug |
| 0732611049 | FILTER INSERT | Suction strainer for oil pump |
| 0634303718 | O-RING | Seals filter housing to pump |
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