ZF 4699.109.124 BRAKE PARTS | OEM Genuine Part

Overview

The ZF 4699.109.124 BRAKE PARTS component is a critical OEM genuine part designed for the internal braking system within heavy-duty ZF construction machinery transmissions. This assembly-level part functions as a friction or pressure plate element, engaging directly with the clutch pack to control torque flow and provide reliable stopping power under extreme loads. Located within the transmission housing, the 4699.109.124 ensures precise modulation of hydraulic pressure to the brake bands or discs, preventing unintended rotation of the output shaft during operation. The SKU 4699.109.124 is engineered to OEM tolerances, guaranteeing a direct fit and consistent performance in demanding environments such as wheel loaders, graders, and dozers.

Symptoms of Failure

• Transmission brake drag or incomplete disengagement: When the 4699.109.124 wears, the brake may not fully release, causing the machine to creep forward or backward even with the transmission in neutral. This is a common long-tail search query for “ZF brake parts sticking symptoms.”
• Oil leaks around the brake housing area: Degradation of the sealing surfaces on this part can lead to hydraulic fluid escaping, often visible as drips near the transmission bell housing. Search terms like “ZF 4699.109.124 oil leak repair” are typical.
• Gear slipping under load: A worn brake component fails to hold the planetary gear set, resulting in momentary loss of power during acceleration or when climbing grades. This symptom is frequently searched as “ZF transmission slipping under load causes.”
• Unusual grinding or whining noises during braking: Metal-to-metal contact from a worn brake part produces audible distress, particularly when the machine is in a low-gear braking scenario.

Technical Specifications

Compatibility

This brake component is primarily compatible with ZF WG180 and WG200 series transmissions, commonly found in construction machinery such as the ZF 4WG-180, 4WG-200, and 6WG-200 models. It also fits select variants of the ZF Ergopower and Ecolife series used in off-highway equipment. Always verify your transmission model and serial number before ordering to ensure correct fitment.

Related Components

For a complete brake assembly overhaul, consider pairing the 4699.109.124 with the 4699101071: HOUSING which encloses the brake pack, and the 4699301145: HOUSING that provides structural support. The 4699309085: HOUSING COVER seals the assembly, while 0636101411: CAP SCREW secures the housing to the transmission case. Additional supporting hardware includes the 0631302212: CYLINDRICAL PIN for alignment, 0634801038: SEALING RING to prevent leaks, 0501319149: SCREW PLUG for port sealing, 0637885613: BREATHER for pressure equalization, 0730365801: TYPE PLATE for identification, and 0636302013: SCREW PLUG for drain ports.