ZF 0501.217.784 BRAKE

Overview

The ZF 0501.217.784 BRAKE is a critical OEM genuine component engineered for the internal braking system within ZF heavy-duty powershift transmissions. This part directly engages the clutch pack to halt output shaft rotation, providing controlled deceleration in construction machinery such as wheel loaders and graders. The SKU 0501.217.784 is designed as a friction-based brake disc that sits between the 4699101049: HOUSING and the 4699301188: HOUSING assembly, where it is secured by the 0636015047: HEXAGON SCREW and protected by the 4699301128: COVER. Without this brake, the transmission cannot achieve positive neutral or hold the machine stationary under load.

Symptoms of Failure

• Transmission fails to hold position on incline: When the 0501.217.784 brake wears thin, the machine may creep forward or backward on slopes even with the brake engaged.
• Delayed engagement or “brake drag”: Worn friction material causes sluggish shifting or a constant grinding sensation during directional changes.
• Dark, burnt transmission fluid: Overheated brake discs produce a distinct burnt odor and darken the oil, indicating imminent failure of the 0501.217.784.
• Intermittent loss of braking power: The operator may notice the brake pedal or lever feels soft or requires multiple pumps to achieve full stopping force.

Technical Specifications

Compatibility

This brake disc is primarily compatible with ZF WG180, WG200, and WG210 series powershift transmissions used in construction machinery such as Caterpillar, Volvo, and Komatsu wheel loaders. It also fits select ZF 4WG-200 and 6WG-200 models. Always verify the spline count and inner diameter against your existing brake pack before ordering.

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