ZF 4657.109.411 PARKING BRAKE for WG210 | OEM Genuine Part

Overview

The ZF 4657.109.411 PARKING BRAKE is a critical mechanical locking mechanism designed specifically for the WG 210 Series transmission. This OEM genuine part engages directly with the output shaft to secure the vehicle when stationary, preventing unintended movement on inclines or flat surfaces. As a safety-critical component, the parking brake assembly integrates with the TRANSMISSION HOUSING and works in concert with the HOUS.FRONT SECT to ensure reliable engagement. The SKU 4657.109.411 is precision-engineered to ZF’s original tolerances, making it a direct replacement for worn units in heavy-duty industrial applications.

Symptoms of Failure

• Intermittent parking brake release or failure to hold on grades — When the internal pawl or actuator mechanism wears, the brake may slip under load, causing the vehicle to roll unexpectedly.
• Grinding or clicking noises during engagement — Damaged teeth or misaligned components produce audible metallic sounds when the parking brake is applied or disengaged.
• Oil seepage around the brake housing — Worn seals within the 4657.109.411 assembly allow transmission fluid to leak past, leading to low fluid levels and potential gear damage.
• Increased pedal or lever travel before brake locks — Excessive clearance from worn friction surfaces reduces the effective stroke, requiring more force to achieve full engagement.

Technical Specifications

Compatibility

This parking brake is engineered for the ZF WG 210 Series, but its mounting interface and torque specifications also allow fitment on the WG 180, WG 200, and WG 250 transmission models. It directly replaces the original equipment part in vehicles such as municipal trucks, construction loaders, and agricultural tractors. For proper installation, ensure the HOUSING REAR PART is free of debris and the CYLINDRICAL PIN aligns correctly with the actuator bore.

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