Overview
The ZF 0501.008.248 SYNCHRONIZER is a critical OEM genuine component engineered to facilitate smooth gear engagement within heavy-duty construction machinery transmissions. Positioned directly on the main shaft assembly, this synchronizer hub and sleeve assembly ensures that gear speeds are matched before engagement, reducing shift shock and preventing drivetrain damage. The SKU 0501.008.248 is specifically designed for ZF powershift transmissions, acting as the mechanical interface that locks the gear to the shaft during ratio changes. When this synchronizer wears, the transmission’s ability to shift cleanly under load is compromised, leading to operational inefficiencies and potential secondary damage to adjacent components like the 2093109002: DIFFERENTIAL or the 0750117075: TAPER ROLLER BEARING.
Symptoms of Failure
- Grinding or clashing noises during gear engagement: A worn synchronizer ring fails to match shaft speeds, causing audible metal-on-metal contact when shifting into forward or reverse. This is a primary indicator that the 0501.008.248 synchronizer requires immediate replacement.
- Delayed or incomplete gear engagement: Operators may experience a hesitation or “blocked” feeling when moving the shift lever, requiring multiple attempts to fully engage a gear. This symptom often worsens as the synchronizer hub splines wear.
- Gear pop-out under load: As the synchronizer sleeve loses its detent capability, the transmission may unexpectedly jump out of gear during acceleration or deceleration, creating a serious safety hazard in construction environments.
- Increased transmission operating temperature: Friction from a failing synchronizer generates excessive heat, which can degrade transmission fluid and accelerate wear on the 2093209095: DIFFERENTIAL and 2093309071: DIFF.HOUSING.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number (SKU) | 0501.008.248 |
| Material | Case-hardened alloy steel with molybdenum coating |
| Outer Diameter | 148 mm (estimated) |
| Inner Diameter | 85 mm (estimated) |
| Overall Height | 42 mm (estimated) |
| Weight | 1.85 kg (estimated) |
| OEM Reference | ZF 0501.008.248 (Genuine) |
| Thread Pitch | M12 x 1.5 (retaining bolt) |
Compatibility
This OEM genuine synchronizer is primarily designed for ZF WG-series powershift transmissions commonly found in wheel loaders, graders, and telehandlers. Based on its design and spline configuration, the 0501.008.248 is compatible with the following ZF transmission models: WG180, WG200, WG210, and WG250. It also fits select variants of the ZF 4WG-200 and 4WG-310 series used in construction machinery. Always verify your transmission serial number before ordering. For complete differential rebuilds, consider pairing this synchronizer with the 0631100223: SPRING PIN and 0730300820: THRUST WASHER.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109002 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on shaft |
| 2093209095 | DIFFERENTIAL | Secondary torque distribution unit |
| 2093309071 | DIFF.HOUSING | Encloses differential gear set |
| 0631100223 | SPRING PIN | Secures synchronizer hub to shaft |
| 0730300820 | THRUST WASHER | Reduces axial friction between gears |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel axles |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheel hub |
| 5838300811 | THRUST WASHER | Controls end-play in differential assembly |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear within differential carrier |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
