Overview
The ZF 0630.004.104 SHIM RING is a precision-engineered adjustment component designed for the WG 65 Series transmission family. This OEM genuine part functions as a critical axial spacer within the planetary gearset assembly, ensuring correct preload and end-play tolerances between rotating elements. Proper shim ring selection directly impacts gear mesh alignment and overall driveline durability. The SKU 0630.004.104 corresponds to a specific thickness grade, making it essential to verify your existing shim measurement before replacement. When installed alongside the 4616101059 TRANSMISSION HOUSING, this ring maintains the precise clearance required for optimal bearing and clutch pack operation.
Symptoms of Failure
- Intermittent gear slippage under load – A worn or incorrect shim ring allows excessive axial movement, causing clutch packs to lose hydraulic pressure during torque transfer.
- Metallic grinding noise from transmission sump – Insufficient end-play leads to gear tooth interference, producing a distinct high-pitched whine or grinding sound during acceleration.
- Oil leaks near the output flange – Degraded shim rings can distort the housing seal surface, resulting in fluid seepage around the 0636011038 HEXAGON SCREW mounting points.
- Hard shifting or delayed engagement – Incorrect shim thickness alters clutch clearance, causing harsh shifts or hesitation when moving from neutral to drive.
Technical Specifications
| Part Number | 0630.004.104 |
| Material | Case-hardened steel (DIN 1.3505 equivalent) |
| Outer Diameter | 104.0 mm |
| Inner Diameter | 85.5 mm |
| Thickness | 1.04 mm (selective fit) |
| Weight | 0.042 kg |
| OEM Reference | ZF 0630.004.104 |
| Surface Finish | Ground, Ra ≤ 0.8 µm |
Compatibility
This shim ring is primarily designed for the WG 65 Series transmissions, including models WG65, WG80, and WG100. It also serves as a service replacement in earlier WG180 and WG200 variants where the planetary carrier uses a 104mm outer diameter shim pocket. Always cross-reference your transmission serial number with the 0636011118 HEXAGON SCREW torque specifications and the 0636016015 HEXAGON SCREW mounting pattern to confirm fitment. For heavy-duty applications, verify the shim stack height using the 0631306085 CYLINDRICAL PIN alignment tool.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101059 | TRANSMISSION HOUSING | Main structural casing for gearset |
| 0636011038 | HEXAGON SCREW | M10x30 housing bolt |
| 0636011118 | HEXAGON SCREW | M12x40 planetary carrier fastener |
| 0636016015 | HEXAGON SCREW | M8x20 oil pan bolt |
| 0631306085 | CYLINDRICAL PIN | Dowel pin for housing alignment |
| 0634313118 | O-RING | Seal for pump cover |
| 0636304019 | SCREW PLUG | M18x1.5 drain plug |
| 0634801152 | SEALING RING | Copper washer for plug |
| 0732611049 | FILTER INSERT | Oil filter element |
| 0634303718 | O-RING | Filter housing seal |
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