Overview
The ZF 0630.004.066 SHIM RING is a precision-engineered spacer component designed for the WG 65 Series transmission family. This OEM genuine part sits between the transmission housing and the planetary gear assembly, ensuring correct axial clearance and load distribution during operation. The SKU 0630.004.066 is critical for maintaining proper gear mesh alignment and preventing metal-to-metal contact within the rotating assembly. When installed alongside the 4616101059 TRANSMISSION HOUSING, this shim ring guarantees that all internal components remain securely positioned under high torque loads.
Symptoms of Failure
- Transmission oil leaks around the housing joint – A worn or collapsed shim ring allows the housing to shift, breaking the seal and causing fluid seepage.
- Gear slipping under load – Incorrect axial play from a degraded shim ring leads to incomplete gear engagement, especially during acceleration or hill climbs.
- Abnormal whining or grinding noises – Metal-on-metal contact from insufficient shim thickness produces distinct high-frequency sounds during operation.
- Premature bearing failure – Without proper shim support, bearings experience uneven loading, resulting in early wear and eventual seizure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0630.004.066 |
| Material | Case-hardened steel (DIN 1.7131) |
| Outer Diameter | 66.0 mm |
| Inner Diameter | 52.0 mm |
| Thickness | 1.5 mm |
| Weight | 18 g |
| Surface Finish | Ground, Ra ≤ 0.8 µm |
| OEM Reference | ZF 0630.004.066 |
| Hardness | 58–62 HRC |
Compatibility
This shim ring is specifically engineered for the ZF WG 65 Series, including models WG65, WG80, WG100, WG120, WG150, WG180, and WG200. It also fits select WG 60 Series variants with identical housing dimensions. Always verify the axial clearance requirement for your specific transmission model before installation. For proper assembly, use the 0636011038 HEXAGON SCREW and 0636011118 HEXAGON SCREW to secure the housing, and the 0636016015 HEXAGON SCREW for the cover plate.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101059 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 0636011038 | HEXAGON SCREW | Fastener for housing-to-bellhousing joint |
| 0636011118 | HEXAGON SCREW | Mounting bolt for planetary carrier |
| 0636016015 | HEXAGON SCREW | Cover plate fastener |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing positioning |
| 0634313118 | O-RING | Seal between housing and cover |
| 0636304019 | SCREW PLUG | Oil drain port closure |
| 0634801152 | SEALING RING | Gasket for plug threads |
| 0732611049 | FILTER INSERT | Oil filtration element |
| 0634303718 | O-RING | Secondary seal for filter housing |
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