Overview
The ZF 0501.227.574 BRAKE is a critical OEM genuine friction component engineered for heavy-duty braking within ZF powershift transmissions used in construction machinery. This part functions as a service brake or parking brake element, engaging directly with the transmission’s rotating drum to halt output shaft motion under load. The SKU 0501.227.574 is precision-machined to OEM tolerances, ensuring consistent clamping force and heat dissipation during repeated stop-start cycles in excavators, wheel loaders, and graders. When installed alongside the 2099109045: DIFFERENTIAL, this brake assembly works in concert to manage torque distribution and vehicle hold on inclines.
Symptoms of Failure
- Gradual machine creep on slopes: Worn friction material in the 0501.227.574 causes the transmission to lose holding torque, leading to unintended movement when the parking brake is engaged.
- Erratic gear engagement or delayed shifts: A failing brake can cause residual drag, making it difficult for the transmission to fully disengage during gear changes, resulting in harsh or delayed shifting.
- Visible oil contamination in brake area: Degraded seals around the brake piston allow transmission fluid to mix with friction dust, producing a dark, gritty residue near the bell housing.
- Increased stopping distance under load: As the brake lining wears below minimum thickness, the clamping force diminishes, requiring more pedal travel to achieve full stop.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 0501.227.574 |
| Material | Sintered bronze friction lining on steel core |
| Outer Diameter | 228 mm (8.98 in) |
| Inner Diameter | 152 mm (5.98 in) |
| Thickness (new) | 6.5 mm (0.256 in) |
| Weight | 1.8 kg (3.97 lbs) |
| Operating Temperature Range | -40°C to +150°C |
| OEM Reference | ZF 0501.227.574 |
Compatibility
This brake component is designed for ZF powershift transmissions commonly found in construction machinery, specifically the WG180, WG200, and WG250 series. It is also compatible with select ZF Ergopower and Ecolife off-highway variants used in telehandlers and compact loaders. For optimal performance, pair this brake with a new 0750117075: TAPER ROLLER BEARING to support the output shaft, and verify the 2093209094: DIFFERENTIAL is free of scoring to prevent uneven wear. The 2093309078: DIFF.HOUSING should also be inspected for cracks during brake replacement.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2099109045 | DIFFERENTIAL | Distributes torque between drive wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports rotating shafts under axial load |
| 2093209094 | DIFFERENTIAL | Secondary torque distribution unit |
| 2093309078 | DIFF.HOUSING | Encloses differential gears and bearings |
| 0631100223 | SPRING PIN | Secures brake assembly to housing |
| 0730300820 | THRUST WASHER | Reduces axial friction between rotating parts |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel axles |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to final drive |
| 5838300811 | THRUST WASHER | Prevents gear end-play in differential |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Meshes with axle bevel gear for rotation |
