Overview
The ZF 4644.199.432 LOOSE PARTS kit is a critical service assembly designed for the WG180 and WG200 series transmissions. This genuine OEM part consolidates essential wear components that secure internal assemblies and maintain hydraulic integrity within the transmission housing. The SKU 4644.199.432 is specifically engineered to replace the loose hardware set that can degrade over time, ensuring the disconnection mechanism and output flange remain properly torqued. Without this kit, the transmission risks losing clamping force on key rotating assemblies, leading to operational instability.
Symptoms of Failure
When the ZF 4644.199.432 LOOSE PARTS kit begins to fail, operators often notice specific performance declines. Oil seepage around the transmission housing is a primary indicator, as degraded seals within the kit lose their ability to contain fluid under pressure. Another common symptom is intermittent gear slipping during load shifts, caused by insufficient clamping force on the DISCONNECTION assembly. You may also detect abnormal vibration from the output flange area when the loose parts cannot maintain proper alignment with the OUTPUT FLANGE. Finally, hard shifting or delayed engagement often points to worn hardware that no longer secures the TRANSMISSION HOUSING components correctly.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4644.199.432 |
| OEM Reference | ZF 4644.199.432 |
| Material | Hardened steel with corrosion-resistant coating |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 45 mm |
| Compatible Series | WG 180, WG 200 |
| Included Components | Hexagon screws, washers, retaining rings |
Compatibility
This genuine ZF 4644.199.432 LOOSE PARTS kit is engineered for direct fitment in the WG 180 Series and WG 200 Series transmissions. It is also suitable for select variants of the WG 160 and WG 210 models that share the same housing architecture. The kit replaces the original loose hardware set used to secure the HEXAGON SCREW fasteners and internal bushings. Always verify your transmission serial number against ZF’s compatibility chart before installation, as late-model WG200 units may require an updated kit revision.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644105475 | DISCONNECTION | Engages and disengages the power take-off unit |
| 4642303097 | OUTPUT FLANGE | Transfers torque from transmission to driveshaft |
| 0636020211 | HEXAGON SCREW | Secures housing and flange assemblies |
| 4644101134 | TRANSMISSION HOUSING | Main structural casing for internal components |
| 4644301349 | HOUSING | Encloses the gear train and valve body |
| 0730365125 | TYPE PLATE | Identification plate with transmission specifications |
| 0631311009 | GROOVED STUD | Provides threaded anchor points for mounting |
| 0636305019 | SCREW PLUG | Seals hydraulic passages and inspection ports |
| 4644301247 | THREADED BUSH | Reinforces threaded connections in soft metals |
| 0634303485 | O-RING | Prevents fluid leaks at mating surfaces |
