Overview
The ZF 0501.336.102 BRAKE is a critical OEM genuine friction component designed to manage torque load and provide controlled deceleration within heavy-duty ZF powershift transmissions. This brake assembly engages directly with the planetary gear set to halt rotational output during directional shifts or parking operations. As a wear-sensitive safety component, the SKU 0501.336.102 is engineered to exact ZF tolerances, ensuring consistent clamping force and heat dissipation under extreme construction machinery loads. It sits within the clutch pack housing, adjacent to the 4699102106: INPUT shaft assembly, and works in tandem with the 4699103117: OUTPUT hub to modulate power flow.
Symptoms of Failure
- Delayed braking response or “brake fade” — When the 0501.336.102 friction material wears thin, operators experience a noticeable lag between pedal engagement and machine stop, particularly on inclines.
- Transmission overheating near the brake drum — Worn linings generate excessive localized heat, often indicated by discolored oil or a burnt odor from the 4699101138: HOUSING area.
- Intermittent gear slippage during braking — A failing brake cannot hold the planetary carrier stationary, causing the transmission to “creep” or lose torque hold when the machine is in neutral.
- Metallic grinding noise during shift cycles — As the friction surface degrades to the backing plate, steel-on-steel contact produces a distinct grinding sound, often misdiagnosed as a bearing failure.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0501.336.102 |
| Type | Friction Brake Disc (Wet) |
| Outer Diameter | 180 mm (7.09 in) |
| Inner Diameter | 120 mm (4.72 in) |
| Thickness (New) | 4.5 mm (0.177 in) |
| Material | Sintered Bronze on Steel Core |
| Weight | 0.85 kg (1.87 lbs) |
| OEM Reference | ZF 0501.336.102 |
| Torque Capacity | 850 Nm (627 lb-ft) |
Compatibility
This genuine ZF brake disc is primarily specified for the WG180 and WG200 series powershift transmissions used in wheel loaders, dozers, and telehandlers. It also fits select WG150 and WG250 models where the brake pack configuration uses a 180mm friction disc. Always verify stack height with the 4699025150: GP25 piston assembly before installation. The brake is not compatible with older WG100 or WG300 series units without adapter modifications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699025150 | GP25 | Piston assembly that actuates the brake pack |
| 4699101138 | HOUSING | Encloses the brake and clutch pack assembly |
| 4699102106 | INPUT | Input shaft hub transferring torque to the brake |
| 4699103117 | OUTPUT | Output shaft hub receiving braked torque |
| 4699301218 | HOUSING | Secondary housing for brake support |
| 4699301224 | HOUSING COVER | Seals the brake housing from contamination |
| 0636101411 | CAP SCREW | Fastens brake components to the housing |
| 0631302072 | CYLINDRICAL PIN | Aligns brake disc splines during assembly |
| 0636302013 | SCREW PLUG | Seals hydraulic passages in the brake circuit |
| 0501331653 | SCREW PLUG | Pressure test port plug for brake diagnostics |
