Overview
The ZF 0501.008.376 SYNCHRONIZER is a precision-engineered internal component responsible for matching gear speeds during ratio changes within ZF heavy-duty transmissions. Positioned on the main shaft assembly, this OEM genuine part ensures smooth engagement between the gear hub and sliding sleeve, preventing grinding and driveline shock. The SKU 0501.008.376 is a factory-sourced synchronizer designed to restore factory shift quality in construction machinery transmissions. When installed alongside the 2094101014 TRANSMISSION HOUSING, this synchronizer maintains correct alignment and load distribution during high-torque operations.
Symptoms of Failure
- Hard shifting or gear clash: Worn synchronizer rings cause delayed engagement, producing a grinding noise when shifting into forward or reverse gears.
- Transmission jumping out of gear: A failing 0501.008.376 synchronizer cannot hold the gear in position, leading to unexpected disengagement under load.
- Metallic debris in transmission fluid: Bronze or steel particles from the synchronizer cone contaminate the oil, often visible during drain intervals.
- Sluggish acceleration in specific gears: Incomplete synchronization reduces power transfer efficiency, particularly noticeable in lower ratios.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0501.008.376 |
| Material | Sintered bronze alloy / hardened steel |
| Outer Diameter | 128 mm (estimated) |
| Inner Diameter | 62 mm (estimated) |
| Weight | 0.85 kg |
| OEM Reference | ZF 0501.008.376 |
| Surface Treatment | Molybdenum coating (friction layer) |
Compatibility
This synchronizer is engineered for ZF WG-series powershift transmissions commonly used in wheel loaders, graders, and dozers. Compatible models include WG180, WG200, and WG210 series. It also fits select ZF 4WG-200 and ZF 6WG-250 variants. For proper sealing, always pair this part with a new 0630361034 SEALING CAP and inspect the 2094301046 HOUSING for wear on the synchronizer bore. The 2094298053 HOUSING must be free of scoring to ensure correct synchronizer travel.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094101014 | TRANSMISSION HOUSING | Encloses gear train and synchronizer assembly |
| 2094301046 | HOUSING | Intermediate support for synchronizer hub |
| 2094298053 | HOUSING | Rear housing containing output shaft bearings |
| 0630361034 | SEALING CAP | Prevents oil leakage at synchronizer shaft bore |
| 2094301071 | COVER | Access cover for synchronizer inspection |
| 2094301030 | GASKET | Seals housing mating surfaces |
| 0750111371 | SHAFT SEAL | Dynamic seal for input shaft |
| 0634303085 | O-RING | Hydraulic circuit seal |
| 0631306670 | CYLINDRICAL PIN | Aligns synchronizer hub to shaft |
| 0636011356 | HEXAGON SCREW | Fastens synchronizer assembly |
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