ZF 4699.109.037 BRAKE | OEM Genuine Part

Overview

The ZF 4699.109.037 BRAKE is a critical OEM genuine friction component engineered for heavy-duty construction machinery transmissions. This part functions as a dynamic braking element within the planetary gearset, converting kinetic energy into heat to control machine speed and hold loads stationary. Specifically designed for ZF’s powershift transmission line, the 4699.109.037 brake assembly engages hydraulically to provide precise stopping force during operation. The SKU 4699.109.037 is mounted directly onto the transmission output shaft, working in conjunction with the 4699101043: HOUSING and 4699301106: HOUSING to create a sealed, high-pressure braking chamber. This genuine ZF part ensures consistent clamping force and thermal stability under extreme loads, making it indispensable for wheel loaders, excavators, and other off-highway equipment.

Symptoms of Failure

• Delayed braking response or transmission “creep”: When the 4699.109.037 brake disc wears thin, hydraulic pressure cannot fully engage the clutch pack, causing the machine to drift on inclines or fail to stop promptly.
• Overheating transmission fluid with burnt odor: Friction material degradation generates excessive heat, leading to fluid breakdown and a distinct burnt smell from the breather or dipstick.
• Intermittent gear slippage under load: Worn brake plates lose holding torque, allowing the transmission to slip between gears when digging or pushing heavy material.
• Metallic grinding noise during directional shifts: Severely worn steel plates produce audible scraping sounds as the brake pack fails to synchronize properly.

Technical Specifications

Compatibility

This brake component is designed for ZF WG-series powershift transmissions commonly found in construction machinery. Compatible models include the WG180, WG200, WG210, and WG250 series. It also fits select variants of the ZF 4WG200 and 5WG210 transmissions used in articulated dump trucks and telehandlers. The 4699.109.037 brake interfaces directly with the 4699301015: HOUSING COVER and 4699301085: COVER to form a complete brake pack assembly. Always verify your transmission serial number before ordering.

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