ZF 2093.070.060 TRA 20 | OEM Genuine Part

Overview

This OEM genuine ZF 2093.070.060 TRA 20 is a critical internal component designed for heavy-duty construction machinery transmissions. It functions as a precision-machined spacer and alignment element within the differential assembly, ensuring correct gear mesh and load distribution under extreme torque. The part sits directly between the differential housing and the axle bevel gear set, maintaining axial clearance. When you order the SKU 2093.070.060, you are securing a factory-spec component that directly interfaces with the 2093109050: DIFFERENTIAL and the 2093209094: DIFFERENTIAL unit to maintain drivetrain integrity.

Symptoms of Failure

• Oil leaks around the differential housing: A worn or cracked 2093.070.060 spacer can compromise the seal surface, leading to visible fluid seepage near the axle connection. This is a common “ZF transmission oil leak” search query.
• Gear slipping under load: When this part loses its dimensional integrity, the differential gears lose proper preload, causing intermittent slipping during excavation or heavy lifting operations.
• Abnormal whining or grinding noise from the differential: Misalignment caused by a failing TRA 20 spacer produces a distinct metallic whine that increases with vehicle speed, often searched as “ZF differential noise repair.”
• Premature wear of the taper roller bearing: A degraded 2093.070.060 directly accelerates wear on the adjacent 0750117075: TAPER ROLLER BEARING, leading to radial play and eventual bearing seizure.

Technical Specifications

Compatibility

This genuine ZF TRA 20 spacer is engineered for use in the following ZF transmission models commonly found in construction machinery: WG180, WG200, WG210, and WG250 series. It is also compatible with select ZF 4WG-200 and 5WG-250 power shift transmissions. The part works in conjunction with the 2093309078: DIFF.HOUSING to ensure correct differential bearing preload. Always verify your transmission serial number before ordering.

Related Components

Frequently Asked Questions

Q: Can I replace the ZF 2093.070.060 without removing the entire transmission?
A: Yes, in most WG180 and WG200 models, this spacer is accessible after removing the differential cover and the axle shafts. However, you must also inspect the 0750117075: TAPER ROLLER BEARING for wear during service.

Q: What is the torque specification for the differential housing bolts when installing this part?
A: For the 2093309078: DIFF.HOUSING, use 120 Nm (88 lb-ft) for M12 bolts, applied in a cross-pattern sequence. Always use new lock washers.

Q: Is the 2093.070.060 the same as a shim for differential preload adjustment?
A: Yes, this TRA 20 spacer functions as a precision shim to set the correct preload on the differential bearings. Using an incorrect thickness can cause rapid failure of the 2093109050: DIFFERENTIAL assembly.