Overview
The ZF 0730.103.721 ADJUSTMENT PLATE is a precision-machined shim component engineered for the WG 200 Series transmission family. This OEM genuine part ensures correct axial clearance between the clutch pack and the hydraulic piston assembly within the planetary gear set. By maintaining exacting tolerances, the adjustment plate prevents premature wear on adjacent rotating assemblies. The SKU 0730.103.721 is a direct factory replacement, guaranteeing the same load distribution and thermal expansion characteristics as the original equipment.
Symptoms of Failure
- Delayed engagement or gear slipping under load: When the adjustment plate wears beyond its service limit, clutch pack clearance increases, causing a soft shift or momentary loss of torque transfer.
- Low hydraulic pressure warnings in the control module: Excessive end-play from a worn plate allows piston stroke to exceed design limits, triggering pressure drop codes in the valve body.
- Metallic debris in transmission fluid: A fatigued adjustment plate can fracture at the inner bore, releasing fine steel particles that contaminate the oil circuit and damage the 4644105417 DISCONNECTION assembly.
- Audible knocking from the bell housing during idle: Worn plates create axial play that resonates through the 4644101121 TRANSMISSION HOUSING, producing a distinct metallic rattle.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.103.721 |
| Material | Case-hardened steel (DIN 1.7131) |
| Outer Diameter | 148.0 mm |
| Inner Diameter | 72.5 mm |
| Thickness | 2.50 mm ±0.05 mm |
| Weight | 0.18 kg |
| Surface Finish | Ground, Ra ≤ 0.8 µm |
| OEM Reference | ZF 0730.103.721 |
Compatibility
This adjustment plate is a core component of the WG 200 Series transmission architecture. It is directly compatible with the WG180, WG200, and WG210 models produced between 2005 and 2020. The plate interfaces with the 4644303547 OUTPUT FLANGE on the output shaft and the 4644303012 OUTPUT FLANGE on the intermediate shaft. Always verify the axial clearance specification for your specific transmission variant before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644105417 | DISCONNECTION | Isolates torque converter from driveline during shift events |
| 4644303547 | OUTPUT FLANGE | Transfers torque to driveshaft; mates with adjustment plate |
| 4644303012 | OUTPUT FLANGE | Secondary output interface for auxiliary drives |
| 4644101121 | TRANSMISSION HOUSING | Main structural casing containing planetary gear sets |
| 4644301240 | TRANSMISSION HOUSING | Rear housing section for WG200 variants |
| 0730365067 | TYPE PLATE | Identification tag with serial number and model code |
| 0631311009 | GROOVED STUD | Locating pin for alignment of clutch pack components |
| 4644301286 | COVER PLATE | Seals the adjustment plate cavity against fluid loss |
| 4644301242 | COVER SHEET | Thin gasket layer preventing metal-to-metal contact |
| 0636101026 | CAP SCREW | Fastener securing the adjustment plate to the piston hub |
