Overview
The ZF 0501.227.573 BRAKE is a critical OEM genuine friction component engineered for the internal wet-brake system within ZF heavy-duty powershift transmissions. This part functions as the primary stopping mechanism, clamping against rotating clutch packs to decelerate output shafts under high torque loads. Positioned within the transmission’s final drive housing, the 0501.227.573 brake assembly ensures controlled deceleration during loading cycles and stationary holding on inclines. The SKU 0501.227.573 is manufactured to ZF’s original tolerances, guaranteeing consistent clamping force and thermal stability in demanding construction machinery applications.
Symptoms of Failure
- Transmission brake drag during operation: Worn friction material causes the brake to remain partially engaged, generating excessive heat and reducing fuel efficiency.
- Intermittent gear slipping under load: When the 0501.227.573 brake fails to fully disengage, clutch packs cannot lock properly, leading to power loss on inclines.
- Oil contamination from brake debris: Degraded friction lining particles circulate through the hydraulic system, clogging filters and accelerating wear on adjacent components.
- Audible grinding or squealing during braking: Metal-on-metal contact indicates the friction surface has worn past the service limit, requiring immediate replacement.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0501.227.573 |
| Outer Diameter | 198 mm |
| Inner Diameter | 135 mm |
| Thickness (New) | 8.5 mm |
| Material | Sintered bronze friction lining on steel core |
| Weight | 0.85 kg |
| OEM Reference | ZF 0501.227.573 |
Compatibility
This OEM brake is designed for integration into ZF WG series transmissions commonly used in wheel loaders, telehandlers, and graders. The 0501.227.573 is directly compatible with the following ZF models: WG180, WG200, WG210, and WG310. It also fits select variants of the ZF 4WG-200 and ZF 6WG-310 series. Always verify the spline count and stack height against your transmission’s service manual before installation.
When replacing the 0501.227.573 brake, it is standard practice to inspect and replace the 2099109042 DIFFERENTIAL and 2093209094 DIFFERENTIAL assemblies if they show signs of backlash wear. The 0750117075 TAPER ROLLER BEARING should also be checked for pitting, as it supports the brake hub. Additionally, the 2093309078 DIFF.HOUSING must be free of cracks to maintain proper brake alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2099109042 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports rotating brake hub |
| 2093209094 | DIFFERENTIAL | Balances wheel speed during turns |
| 2093309078 | DIFF.HOUSING | Encloses differential gears |
| 0631100223 | SPRING PIN | Secures brake piston return spring |
| 0730300820 | THRUST WASHER | Reduces axial friction on brake stack |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to brake assembly |
| 5838300811 | THRUST WASHER | Controls end-play in brake hub |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Engages with axle bevel gear |
