Overview
The ZF 6006.022.152 FS SG 6 S for WG65 is a precision-engineered synchronizer assembly designed for the WG 65 Series transmission family. This OEM genuine part plays a critical role in managing gear engagement within the countershaft system, ensuring smooth shifting under heavy load conditions. The SKU 6006.022.152 is specifically calibrated for the WG65 gearbox architecture, where it interfaces directly with the 4616105415: OUTPUT shaft assembly to regulate rotational torque transfer. Without this component, the transmission cannot maintain consistent power delivery during high-cycle industrial operations.
Symptoms of Failure
- Grinding noise during gear engagement: A worn 6006.022.152 synchronizer causes metallic grinding sounds when shifting, particularly in lower gears, indicating the hub can no longer match shaft speeds.
- Delayed or incomplete gear engagement: Operators may experience a “hang” or hesitation when moving between gears, often accompanied by a temporary loss of drive power.
- Oil contamination from metal debris: As the synchronizer ring wears, fine metallic particles enter the transmission fluid, leading to accelerated wear of the 4616303144: OUTPUT FLANGE and adjacent bearings.
- Intermittent gear slipping under load: The transmission may unexpectedly drop out of gear during uphill climbs or heavy towing, a direct result of insufficient clamping force from the worn synchronizer assembly.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 6006.022.152 |
| Material | Case-hardened steel with bronze synchronizer ring |
| Weight | 1.85 kg (4.08 lbs) |
| Outer Diameter | 152 mm |
| Inner Diameter | 68 mm |
| OEM Reference | ZF FS SG 6 S for WG65 |
| Operating Torque Range | 1,200–1,800 Nm |
Compatibility
This synchronizer assembly is engineered for the ZF WG 65 Series, including models such as the WG180, WG200, and WG250. It is also compatible with select WG65 variants used in off-highway trucks and construction equipment. The part integrates with the 4616101094: TRANSMISSION HOUSING to maintain proper alignment, and is secured using the 0636011038: HEXAGON SCREW for vibration-resistant mounting. Always verify your transmission serial number before ordering to ensure correct fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105415 | OUTPUT | Transfers torque from synchronizer to driveline |
| 4616303144 | OUTPUT FLANGE | Connects output shaft to universal joint |
| 4616101094 | TRANSMISSION HOUSING | Encloses gear train and supports bearings |
| 0636011038 | HEXAGON SCREW | Secures synchronizer hub to shaft |
| 0636011118 | HEXAGON SCREW | Fastens output flange to housing |
| 0636016015 | HEXAGON SCREW | Mounting bolt for shift fork assembly |
| 0631306085 | CYLINDRICAL PIN | Aligns synchronizer ring to hub |
| 0634313118 | O-RING | Seals oil passage around synchronizer |
| 0732611049 | FILTER INSERT | Captures debris from synchronizer wear |
| 0634303718 | O-RING | Prevents fluid leakage at output flange |
