ZF 4699.109.044 BRAKE | OEM Genuine Part

Overview

The ZF 4699.109.044 BRAKE is a critical OEM genuine friction component engineered for heavy-duty stopping power within ZF powershift transmissions. This brake assembly, identified by SKU 4699.109.044, sits directly inside the transmission housing and is responsible for clamping rotating clutch packs to halt output shaft rotation during directional shifts or parking maneuvers. It is a wear-intensive component that interfaces with the 4699101079: HOUSING to maintain proper alignment and hydraulic pressure containment. Without a functional brake, the transmission cannot achieve positive neutral or secure stationary holds under load.

Symptoms of Failure

• Delayed or incomplete stopping when shifting to neutral: If the brake disc pack is worn below minimum thickness, the transmission will coast or creep even when the operator selects neutral, creating a dangerous condition on slopes.
• Oil contamination with metallic debris: Worn friction material sheds into the hydraulic circuit, often visible as dark, glittery fluid during routine sampling. This debris accelerates wear on the 0634306309: O-RING and other seals.
• Audible grinding or chattering during braking: When the brake piston cannot fully compress the pack due to warped plates, you will hear a distinct metallic chatter that worsens under load.
• Transmission overheating in low-speed operations: A dragging brake generates excessive heat, causing the 0637885612: BREATHER to vent oil vapor and leading to premature fluid breakdown.

Technical Specifications

Compatibility

This brake assembly is primarily used in ZF WG series powershift transmissions found in construction machinery. It is a direct fit for the WG180 and WG200 models, which are common in wheel loaders, telehandlers, and compact excavators. The part also appears in select WG150 and WG250 variants where the brake pack shares the same spline count and piston bore dimensions. Always verify the stack height against your existing assembly, as the 0501329881: HOUSING COVER must seat flush to ensure correct preload.

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