ZF 4699.109.047 BRAKE | OEM Genuine Part

Overview

The ZF 4699.109.047 BRAKE is a critical OEM genuine friction component engineered for high-torque planetary gear sets within heavy-duty construction machinery transmissions. This part functions as a rotating clutch or brake disc pack element, designed to manage hydraulic pressure and provide precise stopping or holding torque in ZF power shift transmissions. The SKU 4699.109.047 is specifically calibrated to withstand extreme thermal loads and particulate contamination common in earthmoving applications. It sits directly within the clutch housing assembly, interfacing with the 4699101080: HOUSING to ensure concentric alignment and consistent oil flow distribution. Without this brake component, the transmission cannot achieve the required gear ratio lock-up during load cycles.

Symptoms of Failure

• Delayed engagement or gear slippage under load: When the 4699.109.047 brake disc wears beyond tolerance, hydraulic pressure bleeds past the friction surfaces, causing the transmission to slip when shifting into forward or reverse on inclines.
• Dark, burnt transmission fluid with metallic particles: Worn friction material from this brake contaminates the oil, often visible as dark sludge or glitter in the fluid, indicating the disc pack is disintegrating.
• Erratic shift timing or harsh engagement: A failing brake can cause the transmission to either slam into gear or hesitate for several seconds, as the valve body struggles to compensate for lost clamping force.
• Oil leaks around the clutch housing joint: Excessive heat from a dragging brake can warp the 0501329881: HOUSING COVER, leading to external seepage at the mating surface.

Technical Specifications

Compatibility

This brake component is primarily designed for ZF WG series powershift transmissions, including the WG180, WG200, and WG210 models commonly found in wheel loaders, graders, and compactors. It also fits select ZF 4WG-200 and 6WG-200 variants used in agricultural tractors and forestry skidders. Always verify the spline count and stack height against your existing assembly. The 0630513065: SNAP RING must be replaced concurrently to maintain proper axial clearance, and the 0634306309: O-RING on the piston bore should be inspected for wear to prevent pressure loss.

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