ZF 4699.109.073 BRAKE | OEM Genuine Part

Overview

The ZF 4699.109.073 BRAKE is an OEM genuine friction component engineered for the high-torque output sections of ZF powershift transmissions used in construction machinery. This brake assembly provides controlled deceleration and holding torque for the driveline, directly interfacing with the 4699101108: HOUSING to create a sealed, oil-cooled braking chamber. The SKU 4699.109.073 identifies a factory-spec brake pack that ensures precise engagement timing and thermal stability under heavy cyclic loads.

Symptoms of Failure

• Erratic machine creep on inclines – When the brake fails to hold static torque, the vehicle may drift on slopes, indicating worn friction surfaces on the 4699.109.073 unit.
• Delayed or soft brake engagement – Operators report a spongy pedal or lever feel, often caused by internal seal degradation within the brake piston assembly.
• Oil contamination from brake debris – As friction material wears, metallic particles enter the transmission fluid, accelerating wear on the 0634306309: O-RING and adjacent seals.
• Overheating at the housing joint – Localized heat discoloration near the 0501329881: HOUSING COVER suggests the brake is dragging, often due to a failed 0630513065: SNAP RING that allows axial play.

Technical Specifications

Compatibility

This brake is primarily designed for ZF WG series transmissions commonly found in wheel loaders, telehandlers, and excavators. Confirmed compatible models include WG180, WG200, and WG210 series. It also fits select ZF 4WG-200 and ZF 5WG-210 variants used in construction machinery. Always verify the housing bore diameter and spline count against your existing assembly.

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