ZF 2093.093.022 REAR AXLE | OEM Genuine Part

Overview

The ZF 2093.093.022 REAR AXLE is a critical load-bearing and torque-transmitting component within the final drive assembly of heavy-duty construction machinery. This OEM genuine part, identified by SKU 2093.093.022, sits directly behind the differential housing and connects the axle shafts to the wheel hubs. It is engineered to withstand extreme torsional stress and radial loads encountered during excavation, grading, and material handling operations. The rear axle works in concert with the 2093101054: HOUSING to maintain precise gear alignment and structural integrity under heavy payloads.

Symptoms of Failure

• Persistent oil seepage from the wheel-end seal: When the rear axle housing becomes fatigued or the bearing journals wear, lubricant escapes past the seal, leaving visible drips on the tire and undercarriage.
• Low-frequency humming or growling during turns: Worn axle splines or a bent shaft produce a distinct rhythmic noise that intensifies under load, often misdiagnosed as a wheel bearing issue.
• Excessive end-play or wheel wobble: A degraded rear axle allows lateral movement of the hub, causing uneven tire wear and a noticeable clunk when shifting between forward and reverse.
• Metal debris in differential oil: Flaking or spalling on the axle shaft surface contaminates the lubricant, accelerating wear on the 2093301072: TRANSMISSION HOUSING and internal gears.

Technical Specifications

Compatibility

This rear axle is engineered for ZF heavy-duty powershift transmissions commonly found in wheel loaders, dozers, and telehandlers. It is a direct fit for the WG180, WG200, and WG211 series, as well as the 4WG-200 and 6WG-200 variants. The axle interfaces with the 2093298128: TRANSMISSION HOUSING and is secured using the 0501209878: TAPPET SWITCH for monitoring axle lock engagement. Always verify axle flange pattern and spline count against your specific transmission model before ordering.

Related Components

Frequently Asked Questions

Q: Can the ZF 2093.093.022 rear axle be repaired if the splines are worn?
A: In most cases, worn splines require complete axle replacement. The induction-hardened surface cannot be reliably re-machined, and welding repair introduces stress risers that lead to catastrophic failure under load.

Q: What torque specification should be used for the axle flange bolts?
A: ZF specifies a tightening torque of 480 Nm (354 ft-lb) for the M16 flange bolts, applied in a cross-sequence pattern. Always use new lock washers and lubricate threads with anti-seize compound.

Q: Is the 2093.093.022 compatible with the 4WG-200 transmission in a Caterpillar 950H wheel loader?
A: Yes, the 4WG-200 uses the same axle interface as the WG200 series. However, verify that your machine has the 24-spline output shaft and 130 mm bolt circle to ensure proper fitment.