Overview
The ZF 0501.220.083 BRAKE is a critical OEM genuine component engineered for the internal braking system within ZF construction machinery transmissions. This part functions as a friction-based stopping mechanism, engaging directly with the rotating drum assembly to control output shaft speed and hold the vehicle stationary under load. Designed to withstand high thermal stress and repetitive engagement cycles, the 0501.220.083 brake assembly ensures precise modulation of torque during heavy-duty operations. The SKU 0501.220.083 is specifically positioned within the clutch pack housing, where it interfaces with the 2094101012: TRANSMISSION HOUSING to maintain structural alignment and hydraulic pressure integrity. Without this brake, the transmission cannot achieve reliable park lock or controlled deceleration in demanding earthmoving applications.
Symptoms of Failure
- Transmission creeping on inclines: When the 0501.220.083 brake wears, the vehicle may roll forward or backward on slopes despite the gear selector being in park or neutral. This is a common long-tail search query for “ZF transmission won’t hold on hill.”
- Delayed engagement or grinding noise: Worn friction material causes a noticeable lag when shifting into drive or reverse, often accompanied by a metallic grinding sound. Technicians searching for “ZF brake pack grinding noise” will find this symptom relevant.
- Hydraulic fluid contamination: Internal brake debris can clog the valve body, leading to erratic shifting. This symptom is frequently searched as “brake material in transmission fluid ZF.”
- Overheating transmission housing: Excessive brake drag generates heat that radiates through the 2094301036: HOUSING, causing thermal damage to adjacent seals and bearings.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0501.220.083 |
| Type | Friction Brake Assembly |
| Outer Diameter | 220 mm |
| Inner Diameter | 150 mm |
| Thickness (New) | 8.5 mm |
| Material | Sintered Bronze on Steel Core |
| Weight | 1.2 kg |
| OEM Reference | ZF 0501.220.083 |
| Operating Temperature Range | -40°C to +150°C |
Compatibility
This brake assembly is engineered for use in ZF WG-series powershift transmissions commonly found in construction machinery. Based on its dimensional profile and spline configuration, the 0501.220.083 is compatible with the following transmission models: WG180, WG200, WG211, and WG250. It is also used in select off-highway variants of the ZF 4WG-200 series. For proper installation, ensure the mating 2094298057: HOUSING is free of scoring, and the 2094301071: COVER is torqued to factory specifications. Always replace the brake in sets with the corresponding steel separator plates to maintain even wear patterns.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094101012 | TRANSMISSION HOUSING | Encloses gear train and brake assembly |
| 2094301036 | HOUSING | Supports clutch and brake pack |
| 2094298057 | HOUSING | Provides brake piston bore |
| 2094301071 | COVER | Seals brake chamber |
| 0750111371 | SHAFT SEAL | Prevents fluid leakage at output shaft |
| 0634303085 | O-RING | Seals hydraulic passages |
| 2094301030 | GASKET | Prevents oil seepage between housings |
| 0631306670 | CYLINDRICAL PIN | Aligns housing components |
| 0636011356 | HEXAGON SCREW | Secures housing assembly |
| 4475280060 | SCREW PLUG | Closes hydraulic test ports |
