Overview
The ZF 2098.328.057 BRAKE LEVER is a precision-engineered OEM genuine component designed for the internal actuation system of heavy-duty ZF construction machinery transmissions. This lever transmits mechanical force from the external linkage to the brake pack assembly, ensuring positive engagement and disengagement during operation. As a critical pivot point within the transmission housing, the 2098.328.057 directly influences the responsiveness of the parking brake and service brake circuits. When paired with a robust 2098109043: DIFFERENTIAL, this lever ensures that torque is managed effectively under extreme loads. The SKU 2098.328.057 is machined from high-tensile steel to withstand repeated cycling in excavators, wheel loaders, and graders.
Symptoms of Failure
- Intermittent brake drag or incomplete release: A worn brake lever pivot bore or bent shaft prevents the brake pack from fully disengaging, causing overheating and reduced fuel efficiency.
- Audible clicking or popping from the transmission housing: Excessive play in the lever spline or worn contact surfaces generates metallic noises during gear shifts or braking.
- Sudden loss of parking brake holding power: If the lever fails to maintain its angular position, the brake mechanism slips, leading to unintended vehicle movement on inclines.
- Hard pedal or lever actuation: Corrosion or galling on the lever shaft increases friction, requiring excessive force to engage or disengage the brake system.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 2098.328.057 |
| Material | High-tensile alloy steel, induction-hardened |
| Overall Length | 185 mm (estimated) |
| Pivot Bore Diameter | 22 mm |
| Weight | 0.85 kg (1.87 lbs) |
| OEM Reference | ZF 2098.328.057 (genuine) |
| Surface Finish | Zinc-plated with dichromate seal |
Compatibility
This brake lever is designed for integration into ZF’s WG series power shift transmissions commonly found in construction equipment. Based on the lever geometry and spline configuration, the 2098.328.057 is compatible with the following models: WG180, WG200, WG211, and WG250. It also interfaces with the 2098209011: BEVEL GEAR SET and the 2098209016: DIFFERENTIAL within the same final drive assembly. For proper alignment, the lever must be installed alongside the 2095309059: DIFF.HOUSING to ensure correct pivot clearance.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2098109043 | DIFFERENTIAL | Distributes torque between drive axles |
| 2098209011 | BEVEL GEAR SET | Changes rotational direction in the axle |
| 2098209016 | DIFFERENTIAL | Allows wheel speed variation during turns |
| 2095309059 | DIFF.HOUSING | Encloses and supports differential gears |
| 0631329086 | SPRING PIN | Secures lever pivot to shaft |
| 0730300820 | THRUST WASHER | Reduces axial friction on lever |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2095309081 | DIFFERENTIAL AXLE | Carries differential side gears |
| 5838300811 | THRUST WASHER | Spacer for differential gear stack |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear in differential set |
