ZF 2099.060.008 TRA 16 | OEM Genuine Part

Overview

The ZF 2099.060.008 TRA 16 is a genuine OEM component engineered for the final drive assembly of heavy-duty construction machinery transmissions. This part functions as a critical load-bearing element within the planetary gear set, ensuring precise torque distribution and rotational stability under extreme stress. Identified by SKU 2099.060.008, it is designed to interface directly with the differential housing and axle shafts, converting high-speed input from the transmission into controlled, high-torque output for the wheels. As an OEM-sourced unit, it guarantees exact fitment and metallurgical integrity for ZF drivetrains operating in excavators, wheel loaders, and graders.

Symptoms of Failure

• Persistent oil seepage from the axle housing: Worn seals or cracks in the 2099.060.008 unit allow transmission fluid to escape, leaving visible puddles under the machine after shutdown.
• Intermittent gear slipping under load: When the part loses its dimensional tolerance, the planetary gears fail to maintain constant mesh, causing sudden power loss during digging or climbing.
• Metallic grinding noise during turns: Degraded internal surfaces produce a distinct, high-pitched scraping sound when the differential is under side-load stress.
• Vibration in the driveline at low speeds: Uneven wear on this component creates harmonic oscillations that are felt through the chassis, particularly between 2-5 mph.

Technical Specifications

Compatibility

This genuine ZF 2099.060.008 TRA 16 is primarily compatible with the WG180, WG200, and WG310 series transmissions found in construction machinery. It also fits select variants of the ZF 4WG-200 and 6WG-200 power shift transmissions. For optimal performance, always verify the part number against your transmission’s serial plate. When replacing this unit, it is standard practice to also inspect the 2099109030 DIFFERENTIAL for wear, as both components share the same lubrication circuit and load path.

During installation, the 0750117075 TAPER ROLLER BEARING must be pressed into the housing with precise preload to avoid premature failure. Additionally, the 2093209094 DIFFERENTIAL and 2093309078 DIFF.HOUSING are direct mating components that should be replaced simultaneously if scoring or pitting is detected.

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