ZF 2099.317.011 REAR AXLE HOUS. | OEM Genuine Part

Overview

The ZF 2099.317.011 REAR AXLE HOUS. is a critical structural component designed to encase and protect the internal gear set and differential assembly within heavy-duty construction machinery transmissions. This OEM genuine part, identified by SKU 2099.317.011, serves as the rigid foundation that supports axle shafts and maintains precise alignment of rotating elements under extreme torque loads. It is positioned at the output end of the transmission, directly housing the differential mechanism and final drive gears. The housing absorbs substantial stress from vehicle weight and ground impact, making its structural integrity essential for reliable machine operation.

Symptoms of Failure

• Visible oil seepage around axle seals: When the housing develops hairline cracks or warps due to impact stress, lubricant escapes past seals, leaving wet patches on the housing exterior. This often accompanies a gradual drop in differential oil level.
• Abnormal gear whine or grinding during turns: A compromised housing allows the 2093109028 DIFFERENTIAL to shift out of alignment, causing uneven tooth contact and audible metal-on-metal noise.
• Increased backlash in the driveline: Worn mounting points or distorted bearing bores permit excessive play in the 0750117075 TAPER ROLLER BEARING, resulting in a noticeable clunk when shifting between forward and reverse.
• Premature tire wear on one side: A bent housing alters the rear axle geometry, causing uneven weight distribution and accelerated tread degradation on the affected wheel.

Technical Specifications

Compatibility

This rear axle housing is engineered for ZF heavy-duty powershift transmissions commonly used in wheel loaders, graders, and dump trucks. It is a direct fit for the WG180 and WG200 series, as well as the WG210 and WG220 models. The housing also integrates with the 2093209094 DIFFERENTIAL assembly found in certain off-highway vehicle applications. Always verify your transmission serial number before ordering to ensure correct bolt pattern alignment.

Related Components

Frequently Asked Questions

Q: Can the 2099.317.011 housing be repaired if it has a small crack?
A: Welding is not recommended due to the ductile iron material properties. Even minor cracks can propagate under load, leading to catastrophic failure. Replacement with a genuine OEM housing is the only safe solution for construction machinery.

Q: How do I confirm this housing fits my ZF WG200 transmission?
A: Check the casting number on your existing housing and compare it to 2099.317.011. Also measure the distance between the two bearing bore centers—this housing uses a 420 mm flange-to-flange width. If your unit has a different measurement, you may need the 2093309078 DIFF.HOUSING instead.

Q: What torque specification should I use for the housing bolts?
A: For the M16 bolts securing the housing to the transmission case, apply 210 Nm using a torque wrench. Always replace the bolts with new ones and use thread locker to prevent loosening under vibration.