Overview
The ZF 4651.199.014 LOOSE PARTS kit is a critical service component designed specifically for the WG 100 series transmission. This OEM genuine part, identified by SKU 4651.199.014, contains the essential fasteners, seals, and small hardware required to secure internal assemblies within the transmission housing. It sits directly within the main gear train area, ensuring that the TRANSMISSION HOUSING and HOUSING components remain properly aligned under high torque loads. Without this loose parts set, the structural integrity of the WG100 gearbox is compromised, leading to misalignment and premature wear of rotating elements.
Symptoms of Failure
When the ZF 4651.199.014 LOOSE PARTS begin to fail, operators often notice specific performance degradation. Common failure symptoms include:
- Oil leaks around the housing interface: Worn or missing fasteners cause the O-RING seals to lose compression, resulting in fluid seepage.
- Gear slipping under load: Loose hardware allows the HOUSING sections to shift, reducing gear mesh engagement.
- Abnormal vibration or rattling: Unsecured parts create play in the transmission assembly, generating noise during operation.
- Increased operating temperature: Misalignment from loose components raises friction, leading to overheating.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4651.199.014 |
| Material | Hardened steel with zinc plating (fasteners); Nitrile rubber (seals) |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions | Kit includes M8 x 25mm bolts, M10 x 30mm bolts, and assorted washers |
| OEM Reference | ZF 4651.199.014 |
| Thread Pitch | 1.25mm (M8); 1.5mm (M10) |
| Torque Spec | 35 Nm (M8); 55 Nm (M10) |
Compatibility
This ZF 4651.199.014 LOOSE PARTS kit is engineered for the WG 100 series transmission. It is also compatible with the WG180 and WG200 models when used in conjunction with the correct HOUSING variants. The kit fits all WG100, WG120, and WG150 gearboxes produced after 2010. For WG180 and WG200 applications, verify the housing bore diameter matches the included fasteners. This part is not suitable for older WG series units without the updated TRANSMISSION HOUSING design.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4651101005 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4651301010 | HOUSING | Secondary housing for clutch pack assembly |
| 0634303928 | O-RING | Seals housing joints to prevent leaks |
| 4651301017 | HOUSING | Rear housing for output shaft support |
| 4651203002 | SCREEN SHEET | Filters debris from hydraulic fluid |
| 4651303005 | SCREEN SHEET | Secondary filtration for oil return line |
| 0636101032 | CAP SCREW | Secures housing to transmission case |
| 0630361028 | SEALING CAP | Closes unused ports in housing |
| 0636304032 | SCREW PLUG | Seals drain and fill holes |
| 0634303312 | O-RING | Provides seal for screw plug |
