Overview
The ZF 0501.008.030 SYNCHRONIZER is a critical OEM genuine component engineered for precise gear engagement within heavy-duty construction machinery transmissions. This part ensures seamless speed matching between rotating gears and shafts, preventing grinding and enabling smooth shifts under high torque loads. Positioned within the transmission’s synchronizer assembly, the SKU 0501.008.030 directly interfaces with the hub and sliding sleeve to lock gears during operation. Its robust design minimizes wear in demanding environments, making it essential for maintaining drivetrain integrity in wheel loaders, graders, and other off-highway equipment.
Symptoms of Failure
- Gear grinding or clashing during shifts: A worn 0501.008.030 synchronizer fails to equalize rotational speeds, causing audible grinding when engaging gears, especially under load.
- Hard shifting or gear lockout: Difficulty moving the gear lever into position, or the transmission refusing to engage a specific gear, often indicates synchronizer cone or blocker ring degradation.
- Transmission jumping out of gear: As the synchronizer loses its friction surface, the gear may disengage unexpectedly during operation, creating a safety hazard in construction machinery.
- Metallic debris in transmission fluid: Worn synchronizer material sheds particles into the oil, visible during fluid changes as fine metal shavings or glitter.
Technical Specifications
| Part Number | 0501.008.030 |
| OEM Reference | ZF 0501.008.030 |
| Material | Hardened steel with brass synchronizer ring |
| Weight | Approx. 0.85 kg (1.87 lbs) |
| Outer Diameter | 120 mm |
| Inner Diameter | 65 mm |
| Height | 38 mm |
| Compatible Transmission Series | WG180, WG200, WG210 |
Compatibility
This ZF 0501.008.030 synchronizer is designed for use in ZF WG180, WG200, and WG210 transmission models commonly found in construction machinery such as loaders, dozers, and dump trucks. It fits both 4-speed and 6-speed variants within these series. For optimal performance, always pair this synchronizer with a new 0631329086: SPRING PIN to secure the assembly. Additionally, inspect the 5838109007: DIFFERENTIAL and 2095209019: DIFFERENTIAL units for wear, as synchronizer failure often indicates broader drivetrain stress. The 0750117075: TAPER ROLLER BEARING should also be replaced simultaneously to prevent premature synchronizer wear from shaft play.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109007 | DIFFERENTIAL | Distributes torque between drive wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports shaft rotation and axial loads |
| 2095209019 | DIFFERENTIAL | Secondary differential for planetary axles |
| 0631329086 | SPRING PIN | Secures synchronizer hub to shaft |
| 5838300817 | THRUST WASHER | Controls axial clearance in gear sets |
| 5838300682 | DIFFERENTIAL AXLE | Transfers power to wheel hubs |
| 5838300811 | THRUST WASHER | Reduces friction between rotating components |
| 5841302064 | THRUST WASHER | Prevents axial movement in clutch packs |
| 5838300137 | OUTER CLUTCH DISK | Transfers torque in clutch engagement |
| 5838300138 | INNER CLUTCH DISK | Provides friction surface for clutch locking |
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