ZF 2093.117.026 REAR AXLE HOUS. | OEM Genuine Part

Overview

The ZF 2093.117.026 REAR AXLE HOUS. is a structural core component within heavy-duty construction machinery drivetrains, serving as the rigid enclosure that supports the differential assembly and final drive gears. This OEM genuine part, identified by SKU 2093.117.026, directly houses the ring gear, pinion shaft, and axle shafts, ensuring precise gear alignment under extreme loads. Manufactured from high-strength cast iron, it withstands torsional stress and thermal expansion during prolonged operation in excavators, wheel loaders, and graders. Without this housing, the axle assembly lacks the necessary integrity to transfer torque from the transmission to the wheels, making it critical for maintaining vehicle stability and power delivery.

Symptoms of Failure

• Oil seepage around axle seals: When the ZF 2093.117.026 REAR AXLE HOUS. develops hairline cracks or porous casting, lubricant leaks past the seal surfaces, leaving visible drips under the machine after shutdown.
• Abnormal gear whine or grinding: A worn housing bore allows the differential carrier to shift, causing misalignment between the ring gear and pinion. This produces a high-pitched whine during acceleration or a grinding noise when turning.
• Premature bearing failure: Distortion in the housing mounting points leads to uneven load distribution on the 0750117075: TAPER ROLLER BEARING, resulting in rapid wear and metal debris in the oil.
• Vibration during load cycles: A fractured housing flange or bolt-hole elongation causes the entire axle assembly to vibrate, especially under heavy digging or lifting operations.

Technical Specifications

Compatibility

This rear axle housing is engineered for ZF WG180, WG200, and WG250 power-shift transmissions commonly used in off-highway construction machinery. It directly interfaces with the 2093109021: DIFFERENTIAL carrier and the 2093209096: DIFFERENTIAL assembly. The housing also accepts the 2093309073: DIFF.HOUSING cover plate. It is not compatible with ZF 4WG-310 or 5WG-650 series without adapter brackets.

Related Components

Frequently Asked Questions

Q: Can the ZF 2093.117.026 housing be welded if cracked?
A: Welding is not recommended due to the ductile iron material composition. Thermal stress from welding can distort critical bearing bores, leading to premature failure of the 0750117075: TAPER ROLLER BEARING. Replacement with an OEM genuine housing is the only reliable solution.

Q: Does this housing include the differential carrier?
A: No. The ZF 2093.117.026 REAR AXLE HOUS. is sold as a bare casting. You must install the 2093109021: DIFFERENTIAL and 2093209096: DIFFERENTIAL assemblies separately.

Q: What torque specification should be used for the housing bolts?
A: Tighten M16 mounting bolts to 210 Nm (155 ft-lb) in a cross-pattern sequence. Always use new lock washers and verify the 2093309073: DIFF.HOUSING cover gasket is replaced during installation.