ZF 0501.323.222 NUT | OEM Genuine Part

Overview

The ZF 0501.323.222 NUT is a precision-engineered OEM genuine fastening component designed for critical load-bearing applications within ZF construction machinery transmissions. This nut secures internal shaft assemblies and gear trains, ensuring proper preload and alignment under high-torque conditions. The SKU 0501.323.222 is specifically machined to exact ZF tolerances, preventing axial play that can lead to premature wear of adjacent components. It interfaces directly with the 4663101001: HOUSING and the 4663301025: COVER to maintain structural integrity of the transmission case.

Symptoms of Failure

• Transmission oil leaks near shaft seals: A loosened or worn nut allows shaft movement, breaking the seal between the 0631306816: CYLINDRICAL PIN and housing, leading to fluid seepage.
• Gear slipping under load: Insufficient clamping force from a degraded nut causes gear train disengagement, especially during heavy machinery operation.
• Abnormal vibration or whining noise: Axial play from a stripped nut creates harmonic resonance in the drivetrain, often misdiagnosed as bearing failure.
• Hard shifting or delayed engagement: A compromised nut alters clutch pack clearance, resulting in sluggish gear changes in WG-series transmissions.

Technical Specifications

Compatibility

This nut is validated for use in ZF WG180, WG200, and WG250 series transmissions commonly deployed in wheel loaders, excavators, and telehandlers. It also fits select models of ZF Ecomat 4HP and 5HP automatic transmissions used in medium-duty construction vehicles. Always verify thread pitch and flange diameter against your transmission’s service manual. The nut works in conjunction with the 0636100817: CAP SCREW to secure the output shaft assembly.

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