ZF 4699.109.072 BRAKE | OEM Genuine Part

Overview

The ZF 4699.109.072 BRAKE is a critical OEM genuine friction component engineered for heavy-duty construction machinery transmissions. This part functions as the primary braking mechanism within the clutch pack assembly, managing torque interruption and load holding during gear shifts. Positioned directly within the rotating drum of the transmission, the brake absorbs high thermal loads and mechanical stress to ensure controlled deceleration. The SKU 4699.109.072 is precision-machined to ZF factory tolerances, guaranteeing direct fitment without modification. For optimal assembly integrity, this brake is typically installed alongside the 4699001092: GK10 clutch piston and the 4699101094: HOUSING that encloses the brake pack.

Symptoms of Failure

• Delayed engagement or “transmission brake slipping” — When the brake material wears thin, the transmission fails to hold torque, causing hesitation when shifting from neutral to drive under load.
• Oil contamination from “brake friction material debris” — Worn brake particles circulate through the hydraulic system, clogging filters and causing erratic pressure drops.
• Audible “grinding noise during gear change” — Metal-on-metal contact occurs when the friction lining is completely depleted, producing a high-pitched screech or grinding sound.
• Overheating and “transmission fluid darkening” — Excessive slippage generates heat that burns the hydraulic oil, turning it dark brown and reducing lubricity.

Technical Specifications

Compatibility

This brake is designed for ZF powershift transmissions commonly used in wheel loaders, graders, and excavators. It directly fits the following ZF models: WG180, WG200, WG210, and WG220 series. The part also integrates with the 4699103063: OUTPUT shaft assembly and the 0501329881: HOUSING COVER that seals the brake chamber. Always verify your transmission serial number before ordering.

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