ZF 2093.070.011 TRA 20 | OEM Genuine Part

Overview

The ZF 2093.070.011 TRA 20 is a genuine OEM transmission component engineered for heavy-duty construction machinery. This part functions as a critical load-bearing element within the final drive assembly, specifically designed to manage torque distribution and rotational stability in ZF powershift transmissions. The SKU 2093.070.011 sits directly between the differential housing and the axle shaft, ensuring precise alignment of planetary gears during high-stress operations. As an OEM genuine part, it guarantees factory tolerances that aftermarket alternatives cannot replicate, directly affecting drivetrain longevity in excavators, wheel loaders, and graders.

Symptoms of Failure

• Progressive oil seepage at axle seals: When the 2093.070.011 wears, hydraulic fluid migrates past the sealing surface, creating visible drips near the wheel hub after extended operation.
• Intermittent gear slipping under load: Worn engagement surfaces cause momentary power loss when climbing grades or lifting heavy loads, often misdiagnosed as clutch failure.
• Metallic grinding during low-speed turns: Degraded bearing seats produce a distinct chatter sound when the machine articulates, indicating uneven load distribution across the differential assembly.
• Vibration in the driveline at 15-25 km/h: As the part loses dimensional stability, harmonic oscillations transfer through the axle housing, felt distinctly in the operator cab floorboard.

Technical Specifications

Compatibility

This component is designed for ZF WG series powershift transmissions commonly found in construction equipment. It is a direct fit for the WG180, WG200, and WG250 models, which power machines from manufacturers like Liebherr, Caterpillar, and Volvo CE. The 2093.070.011 also integrates with the WG150 and WG310 series when used in conjunction with the correct 2093109021 DIFFERENTIAL and 0750117075 TAPER ROLLER BEARING. For proper installation, always pair this part with the 2093209096 DIFFERENTIAL and 2093309073 DIFF.HOUSING to maintain OEM clearance specifications.

Related Components

Frequently Asked Questions

Q: Can the 2093.070.011 be installed without replacing the taper roller bearing?
A: No. The 0750117075 TAPER ROLLER BEARING must always be replaced simultaneously because worn bearing races create uneven wear patterns on the new part, reducing service life by up to 60%.

Q: What is the typical service interval for this part in a wheel loader?
A: Under normal construction site conditions (8-10 hours daily operation), replacement is recommended every 4,000-5,000 hours or when differential housing inspection reveals scoring on the 2093309073 DIFF.HOUSING mating surface.

Q: Does this part require special tools for installation?
A: Yes. A hydraulic press with a 5-ton capacity is needed to seat the component into the 2093209096 DIFFERENTIAL bore, along with a torque wrench calibrated to 280 Nm for the retaining bolts.