ZF 2093.070.026 TRA 20 | OEM Genuine Part

Overview

The ZF 2093.070.026 TRA 20 is a precision-engineered internal component designed for heavy-duty construction machinery transmissions. This OEM genuine part functions as a critical load-bearing and torque-transfer element within the planetary gear set of ZF’s modular transmission systems. Specifically, the 2093.070.026 sits within the differential housing assembly, where it interacts with the axle bevel gear to manage power distribution under extreme stress. When paired with a 2093109028 DIFFERENTIAL, this part ensures smooth engagement and consistent output to the drive wheels. The SKU 2093.070.026 is manufactured to exact OEM tolerances, making it a direct replacement for worn units in ZF TRA 20 series transmissions.

Symptoms of Failure

• Oil leaks near the differential housing: A worn 2093.070.026 often causes seal degradation, leading to visible fluid seepage around the transmission casing. This is a common search query for “ZF transmission oil leak repair.”
• Gear slipping under load: When the TRA 20 component loses its surface integrity, you may experience intermittent power loss or “slipping” during excavation or lifting operations, a symptom frequently searched as “construction machinery gear slipping.”
• Abnormal whining or grinding noises: Excessive play in this part generates a high-pitched whine from the differential area, especially during turns. This is a classic indicator of “ZF differential noise” issues.
• Vibration during acceleration: A failing 2093.070.026 can cause driveline shudder, particularly when the machine is under heavy load, matching long-tail queries like “transmission vibration under load.”

Technical Specifications

Compatibility

This genuine ZF 2093.070.026 TRA 20 is primarily compatible with ZF WG180 and WG200 series transmissions commonly found in wheel loaders, excavators, and telehandlers. It also fits select ZF 4WG-200 and 4WG-210 models used in heavy construction machinery. For optimal performance, this component should be installed alongside a 0750117075 TAPER ROLLER BEARING and a 2093209094 DIFFERENTIAL to ensure proper alignment. Additionally, the 2093309078 DIFF.HOUSING must be inspected for cracks when replacing this part.

Related Components

Frequently Asked Questions

Q: How do I know if the 2093.070.026 TRA 20 needs replacement?
A: Look for oil leaks around the differential housing or a persistent whine during turns. If you notice gear slipping under load, inspect this part immediately.

Q: Can I install this part without replacing the taper roller bearing?
A: It is strongly recommended to replace the 0750117075 TAPER ROLLER BEARING simultaneously, as wear on one component accelerates damage to the other.

Q: Is the 2093.070.026 compatible with ZF 4WG-200 transmissions?
A: Yes, this part is designed for ZF WG180, WG200, and 4WG-200 series transmissions used in construction machinery.