Overview
The ZF 6029.301.020 FIXING PLATE is a precision-engineered OEM genuine component designed to secure critical internal assemblies within ZF’s WG100, WG180, and WG200 series transmissions. This plate acts as a rigid locator, ensuring that the 4644105413: DISCONNECTION mechanism and adjacent shafts remain perfectly aligned under high torque loads. By maintaining exact positional tolerances, the fixing plate prevents axial movement that could lead to premature wear. The SKU 6029.301.020 is manufactured to ZF’s original specifications, guaranteeing a direct fit and long service life in your drivetrain assembly.
Symptoms of Failure
- Transmission oil seepage at the housing joint: A worn or cracked fixing plate can distort the seal surface, allowing fluid to escape. This often appears as a slow drip near the 4644101222: TRANSMISSION HOUSING interface.
- Intermittent gear engagement hesitation: When the plate loses its clamping force, the disconnection unit may shift slightly, causing delayed or rough shifts under load.
- Unusual metallic rattling from the bell housing: Loose fixing plates allow the 4642303093: OUTPUT FLANGE to vibrate against adjacent components, producing a distinct noise during deceleration.
- Increased backlash in the driveline: As the plate fatigues, rotational play increases between the transmission housing and the output assembly, leading to a noticeable clunk when changing direction.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 6029.301.020 |
| Material | High-strength carbon steel (C45E + QT) |
| Surface Finish | Zinc-nickel plated (ISO 2081) |
| Overall Length | 142.5 mm |
| Overall Width | 68.0 mm |
| Thickness | 6.0 mm |
| Bolt Hole Diameter | 10.2 mm (4x) |
| Weight | 0.34 kg |
| OEM Reference | ZF 6029.301.020 |
| Torque Specification | 45 Nm (use 0636021010: HEXAGON SCREW) |
Compatibility
This fixing plate is engineered for ZF’s WG-series powershift transmissions. It is a direct replacement for the following models: WG100, WG180, and WG200. These transmissions are commonly found in heavy-duty construction equipment, agricultural tractors, and material handlers. The plate interfaces with the 4644301226: TRANSMISSION HOUSING variant and secures the disconnection assembly. Always verify your transmission serial number against ZF’s parts catalog to ensure compatibility with your specific build date.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644105413 | DISCONNECTION | Engages/disengages power flow from the torque converter |
| 4642303093 | OUTPUT FLANGE | Transfers rotational force to the driveshaft |
| 0636021010 | HEXAGON SCREW | Fastens the fixing plate to the housing |
| 4644101222 | TRANSMISSION HOUSING | Main structural casing for the gear train |
| 4644301226 | TRANSMISSION HOUSING | Alternate housing variant for WG200 series |
| 0730365067 | TYPE PLATE | Identification label with transmission specs |
| 0631311009 | GROOVED STUD | Alignment dowel for precise component positioning |
| 4644301298 | COVER PLATE | Seals the access opening to the fixing plate area |
| 0634306525 | O-RING | Hydraulic seal between housing and cover plate |
| 0636305026 | SCREW PLUG | Closes oil passages during maintenance |
