Overview
The ZF 0501.207.084 BRAKE CAM is a critical actuation component engineered specifically for the WG100 and WG110 transmission series. This OEM genuine part converts linear pneumatic force into precise rotational movement to engage the parking brake mechanism within the transmission housing. Positioned at the rear of the main gearbox assembly, the brake cam interfaces directly with the brake piston and spring pack to ensure reliable stationary holding torque. The SKU 0501.207.084 is manufactured to ZF’s original tolerances, guaranteeing exact fitment and long service life in heavy-duty industrial applications.
Symptoms of Failure
- Intermittent parking brake release: A worn brake cam surface prevents full disengagement, causing the vehicle to drag or hesitate when shifting from park to drive.
- Audible metallic clicking during brake application: Excessive clearance between the cam lobe and follower produces a distinct clicking noise when the brake is engaged or disengaged.
- Gradual loss of holding torque on inclines: As the cam profile wears, the brake piston stroke becomes insufficient, leading to the transmission rolling back on slopes.
- Oil contamination from seal failure: A cracked cam shaft bore allows transmission fluid to bypass the 0634303928 O-RING, resulting in external leaks near the brake housing.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0501.207.084 |
| Material | Case-hardened alloy steel (20MnCr5) |
| Surface Treatment | Phosphate coating with oil retention |
| Overall Length | 142 mm |
| Cam Lobe Diameter | 38 mm |
| Shaft Diameter | 22 mm |
| Weight | 0.85 kg |
| OEM Reference | ZF 0501.207.084 |
| Torque Rating | 180 Nm (max static) |
Compatibility
This brake cam is designed for the ZF WG100 and WG110 transmission series, commonly found in municipal trucks, refuse vehicles, and medium-duty construction equipment. While the 0501.207.084 is specific to these models, the brake cam assembly shares mounting patterns with the WG180 and WG200 series. For proper installation, ensure the 4651101007 TRANSMISSION HOUSING is free of cracks and the 4651301029 HOUSING mating surface is clean. Always replace the 0634303928 O-RING and inspect the 4651301024 HOUSING for wear during brake cam service.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4651101007 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4651301029 | HOUSING | Rear brake housing cover |
| 0634303928 | O-RING | Seals brake cam shaft bore |
| 4651301024 | HOUSING | Intermediate brake housing section |
| 4651203002 | SCREEN SHEET | Oil filter mesh for lubrication circuit |
| 4651303005 | SCREEN SHEET | Secondary oil strainer for brake system |
| 0636101032 | CAP SCREW | Fastener for housing assembly |
| 0630361028 | SEALING CAP | Protects cam shaft end from debris |
| 4475280060 | SCREW PLUG | Oil drain or vent port plug |
| 0634303312 | O-RING | Seals screw plug interface |
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