Overview
The ZF 0501.212.689 BRAKE is a critical internal component engineered specifically for the WG110, WG115, WG130, and WG160 series transmissions. This OEM genuine part functions as a friction-based stopping mechanism, engaging directly with the planetary gear set to control torque flow and hold specific gear ratios under load. Positioned within the clutch pack assembly, the SKU 0501.212.689 ensures precise hydraulic engagement and disengagement during shifting operations. When paired with a robust TRANSMISSION HOUSING, this brake delivers consistent holding power essential for heavy-duty industrial applications.
Symptoms of Failure
- Delayed or harsh engagement: A worn 0501.212.689 brake causes noticeable lag when shifting into forward or reverse, often accompanied by a jarring clunk as the friction material loses grip.
- Transmission fluid contamination: As the brake lining degrades, fine metallic particles enter the hydraulic circuit, leading to dark, burnt-smelling oil and reduced system pressure.
- Gear slippage under load: Operators may experience the transmission unexpectedly dropping out of gear during uphill climbs or heavy towing, indicating the brake can no longer hold the selected ratio.
- Audible grinding noise: A persistent low-frequency grinding from the transmission housing suggests the brake disc has worn beyond service limits, potentially damaging adjacent components like the HOUSING.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0501.212.689 |
| Outer Diameter | 210 mm (estimated) |
| Inner Diameter | 140 mm (estimated) |
| Thickness | 4.5 mm (estimated) |
| Material | Sintered bronze on steel core |
| Weight | 0.85 kg (estimated) |
| OEM Reference | ZF 0501.212.689 |
| Torque Capacity | 1,200 Nm (estimated) |
Compatibility
This brake component is factory-specified for the ZF WG110, WG115, WG130, and WG160 series transmissions. It also fits select variants of the WG180 and WG200 models where the same friction pack architecture is used. Always verify the internal spline count and stack height against your existing assembly. For proper sealing during installation, replace the O-RING and inspect the HOUSING for scoring or warpage.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4651101013 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4651301032 | HOUSING | Secondary housing for clutch pack support |
| 0634303928 | O-RING | Hydraulic seal between housing sections |
| 4651301033 | HOUSING | Rear housing for output shaft assembly |
| 4651203002 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4651303005 | SCREEN SHEET | Coarse debris screen for sump protection |
| 0636101032 | CAP SCREW | High-tensile fastener for housing bolts |
| 0630361028 | SEALING CAP | Pressure port cover with O-ring groove |
| 4475280060 | SCREW PLUG | Magnetic drain plug for ferrous debris |
| 0634303312 | O-RING | Viton seal for high-temperature zones |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
