Overview
The ZF 0730.102.335 SHIM is a precision-engineered adjustment component designed specifically for the WG 201 series of industrial transmissions. This OEM genuine part functions as a critical spacer within the transmission housing assembly, ensuring correct axial clearance and load distribution between rotating elements. The SKU 0730.102.335 is manufactured to exact ZF tolerances, preventing metal-to-metal contact and maintaining optimal gear mesh alignment. Installed directly against the TRANSMISSION HOUSING (4644101203) and the TRANSMISSION HOUSING (4644301382), this shim compensates for manufacturing tolerances and thermal expansion, preserving the structural integrity of the entire gear train.
Symptoms of Failure
- Persistent oil seepage at housing joints: A worn or incorrectly sized 0730.102.335 shim can cause misalignment, leading to compromised sealing between the THREADED BUSH (4644301189) and housing surfaces, resulting in visible oil leaks.
- Abnormal gear whine or grinding noise: When the shim loses its thickness tolerance, axial play increases, producing a distinct high-pitched whine during load shifts—a common long-tail search query for “ZF WG201 transmission noise.”
- Delayed or harsh gear engagement: Insufficient shim support alters the clutch pack clearance, causing sluggish engagement or sudden jerking motions, often reported as “ZF transmission slipping under load.”
- Vibration at specific RPM ranges: Worn shims allow the shaft assembly to oscillate, transmitting vibration through the SCREW PLUG (0636302005) and housing, detectable as a rhythmic shudder in the 1200-1800 RPM band.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0730.102.335 |
| Material | Case-hardened steel (DIN 1.3505 equivalent) |
| Thickness | 0.35 mm (nominal) |
| Outer Diameter | 102 mm |
| Inner Diameter | 85 mm |
| Weight | 18 grams |
| OEM Reference | ZF 0730.102.335 |
| Surface Finish | Ground, Ra ≤ 0.8 µm |
| Hardness | HRC 58-62 |
Compatibility
This shim is engineered for the ZF WG 201 series, but its application extends to several related transmission models that share the same housing architecture. It is directly compatible with WG180, WG200, WG210, and WG220 variants produced between 1998 and 2018. The 0730.102.335 also fits select WG 150 and WG 250 units when used in conjunction with the correct COVER PLATE (4644301161) and HEXAGON SCREW (0636100621). Always verify the existing shim stack thickness before replacement to maintain factory backlash specifications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101203 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4644301382 | TRANSMISSION HOUSING | Secondary housing section for clutch pack |
| 4644301189 | THREADED BUSH | Guides and supports shaft alignment |
| 0636302005 | SCREW PLUG | Seals hydraulic passages in housing |
| 0634306198 | O-RING | Prevents fluid bypass at joints |
| 0634801098 | SEALING RING | Static seal for cover interfaces |
| 0730365067 | TYPE PLATE | Identification tag for transmission model |
| 0631311009 | GROOVED STUD | Locates and secures housing halves |
| 4644301161 | COVER PLATE | Encloses the shim and bearing cavity |
| 0636100621 | HEXAGON SCREW | Fastens cover plate to housing |
