ZF 2093.070.001 TRA 20 | OEM Genuine Part

Overview

The ZF 2093.070.001 TRA 20 is a critical internal component designed for heavy-duty construction machinery transmissions. This OEM genuine part functions as a specialized thrust or spacer element within the differential assembly, ensuring precise axial alignment and load distribution under extreme torque conditions. Located in the final drive section of ZF powershift transmissions, the 2093.070.001 maintains gear mesh accuracy and prevents metal-to-metal contact between rotating assemblies. Its robust construction directly supports the longevity of adjacent drivetrain components, including the 2093109021 DIFFERENTIAL and the 0750117075 TAPER ROLLER BEARING, making it indispensable for maintaining OEM performance standards in loaders, graders, and excavators.

Symptoms of Failure

• Progressive oil seepage around the differential housing: When the 2093.070.001 wears, it compromises the seal interface, leading to visible hydraulic fluid leaks during operation. This is a common long-tail search query for “ZF transmission oil leak at differential housing.”
• Intermittent gear slipping under load: A worn part allows axial play in the differential, causing the 2093209096 DIFFERENTIAL to lose proper tooth engagement, resulting in momentary power loss when climbing or pushing heavy material.
• Metallic grinding noise during turns: Excessive clearance from a degraded 2093.070.001 permits the 2093309073 DIFF.HOUSING to contact internal gears, producing a distinct grinding sound that worsens with steering input.
• Increased vibration in the driveline: Loss of thrust control leads to uneven bearing loading, transmitting noticeable vibration through the chassis at speeds above 5 km/h.

Technical Specifications

Compatibility

This genuine ZF 2093.070.001 TRA 20 is engineered for integration into the following ZF transmission models commonly deployed in construction machinery: WG180, WG200, WG210, and WG250 series. It is also compatible with select variants of the ZF 4WG-200 and ZF 6WG-250 powershift transmissions. Always verify your transmission serial number before ordering, as the part interfaces directly with the 2093109021 DIFFERENTIAL and 2093209096 DIFFERENTIAL assemblies.

Related Components

Frequently Asked Questions

Q: How do I confirm the 2093.070.001 fits my ZF WG200 transmission?
A: Check the transmission model plate located on the bell housing. The WG200 series uses this part in the differential section. For absolute certainty, cross-reference your old part’s dimensions (82.5 mm OD, 45 mm ID) against the specifications above.

Q: Can I reuse the old taper roller bearing when replacing this part?
A: No. ZF recommends always replacing the 0750117075 TAPER ROLLER BEARING simultaneously, as wear patterns on the bearing race can accelerate failure of the new 2093.070.001 component.

Q: What causes premature failure of the TRA 20 thrust element?
A: The most common cause is contamination from worn 0631100223 SPRING PIN fragments or debris from a failing 2093309073 DIFF.HOUSING. Always inspect these related parts during service.