ZF 2097.070.015 TRA 20 | OEM Genuine Part

Overview

The ZF 2097.070.015 TRA 20 is an OEM genuine internal gear and shaft assembly engineered for the final drive section of heavy-duty construction machinery transmissions. This component sits within the differential housing, directly transferring torque from the axle bevel gear to the wheel hubs. As a critical load-bearing element, the SKU 2097.070.015 ensures precise rotational alignment and power distribution under extreme stress. When paired with a properly maintained 2097109012: DIFFERENTIAL, it maintains drivetrain integrity during high-torque operations like grading or excavating.

Symptoms of Failure

• Whining or howling noise from axle housing — Worn gear teeth on the 2097.070.015 produce a distinct metallic whine during acceleration or deceleration, often mistaken for wheel bearing failure.
• Intermittent loss of traction — A failing TRA 20 causes the differential to slip under load, resulting in one wheel spinning freely while the other remains stationary, especially on uneven terrain.
• Metallic debris in transmission oil — Flaking or pitting of the gear surface introduces fine steel particles into the lubricant, visible during routine oil changes as a glittering contamination.
• Oil seepage near differential housing — Excessive play in the 2097.070.015 can distort the 2093309073: DIFF.HOUSING seal surface, causing gradual oil leaks around the axle flange.

Technical Specifications

Compatibility

This genuine ZF part is designed for the WG180, WG200, and WG210 series powershift transmissions commonly found in wheel loaders, backhoes, and telehandlers. It directly interfaces with the 2093209096: DIFFERENTIAL assembly and requires a 0750117075: TAPER ROLLER BEARING for proper axial support. The 2097.070.015 is also used in certain ZF 4WG-200 and 6WG-200 configurations where a compact final drive reduction is needed.

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