Overview
The ZF 0501.331.907 BRAKE is a critical OEM genuine component designed for the internal braking system within heavy-duty ZF powershift transmissions. This part functions as a friction-based stopping mechanism, engaging directly with the rotating clutch packs to control output shaft speed and hold the machine stationary under load. As a wear item, the 0501.331.907 brake assembly is housed within the main transmission casing and is actuated hydraulically to provide precise stopping force. The SKU 0501.331.907 is a direct factory replacement, ensuring exact fitment and original material composition for demanding construction machinery applications.
Symptoms of Failure
When the ZF 0501.331.907 brake wears out, operators will notice specific performance degradation. Common failure symptoms include:
- Transmission brake slipping under load: The machine struggles to hold position on an incline, or the vehicle creeps forward when the brake is engaged.
- Delayed stopping response: A noticeable lag between pressing the brake pedal and the transmission actually halting the output shaft.
- Contaminated transmission fluid: Excessive brake material shedding into the oil, visible as dark, metallic particles in the fluid or on the magnetic drain plug.
- Erratic gear engagement: Harsh or delayed shifts occur because the brake fails to release fully, causing drag on the rotating elements.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 0501.331.907 |
| Type | Friction Brake Assembly |
| Material | Sintered Bronze / Steel Composite |
| Outer Diameter | 180 mm (approx.) |
| Inner Diameter | 120 mm (approx.) |
| Thickness | 4.5 mm (new) |
| Weight | 0.85 kg |
| OEM Reference | ZF 0501.331.907 |
Compatibility
This brake component is engineered for use in ZF heavy-duty powershift transmissions commonly found in construction machinery. Based on its design and dimensions, the 0501.331.907 is compatible with the following ZF transmission models:
- ZF WG180
- ZF WG200
- ZF WG210
- ZF 4WG-200
Always verify your transmission serial number before installation. This brake is typically installed inside the 4699101105: HOUSING assembly, which encloses the clutch and brake packs. The 0501329881: HOUSING COVER seals the unit, while a fresh 0634306309: O-RING is required to prevent fluid leaks at the mating surfaces. Additionally, the 0637885612: BREATHER should be inspected or replaced to maintain proper pressure equalization within the transmission housing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101105 | HOUSING | Encloses the brake and clutch pack assembly |
| 0501329881 | HOUSING COVER | Seals the housing and supports internal components |
| 0634306309 | O-RING | Prevents oil leakage between housing and cover |
| 0637885612 | BREATHER | Equalizes internal pressure and vents moisture |
| 0501319149 | SCREW PLUG | Seals oil passages in the housing |
| 0636302022 | SCREW PLUG | Additional port sealing plug |
| 0634801038 | SEALING RING | Provides leak-proof seal under screw plugs |
| 0730365801 | TYPE PLATE | Identification plate for transmission model |
| 4699001144 | GK10 | Gear kit component for power transmission |
| 4699102083 | INPUT | Input shaft assembly for torque transfer |
