ZF 4699.302.228 FLANGE BUSH | OEM Genuine Part

Overview

The ZF 4699.302.228 FLANGE BUSH is a precision-engineered OEM genuine component designed to serve as a critical wear interface within heavy-duty construction machinery transmissions. This bushing sits between the rotating shaft and the stationary housing, reducing friction and maintaining precise axial alignment under extreme torque loads. As an integral part of the transmission’s lubrication circuit, the 4699.302.228 flange bush ensures consistent oil film distribution, preventing metal-to-metal contact that can lead to catastrophic gear train failure. This genuine ZF part is manufactured to exacting tolerances, guaranteeing a direct fit without modification.

Symptoms of Failure

• Transmission oil leaks from the bell housing area: When the flange bush wears beyond its service limit, pressurized oil bypasses the seal interface, causing visible drips or wet spots around the transmission case.
• Intermittent gear slipping under load: A worn 4699.302.228 bushing allows excessive shaft play, disrupting the hydraulic clutch pack engagement sequence and causing momentary power loss during excavation or grading operations.
• Metallic grinding noise during gear shifts: As the bushing material degrades, metal particles contaminate the transmission fluid, producing a distinct grinding or whining sound when shifting between forward and reverse ranges.
• Vibration through the driveline at low RPM: Excessive clearance from a worn flange bush creates harmonic oscillations that transmit through the 4699101155: HOUSING assembly, felt as a low-frequency shudder in the operator cab.

Technical Specifications

Compatibility

This flange bush is engineered for ZF WG series powershift transmissions commonly found in wheel loaders, excavators, and telehandlers. It is a direct replacement for the following ZF transmission models: WG180, WG200, WG210, WG211, WG310, and WG311. The 4699.302.228 part is also used in certain ZF 4WG-200 and 4WG-310 variants. Always verify your transmission serial number against the OEM parts catalog before ordering.

During installation, this bushing interfaces directly with the 4699201018: HOUSING and is secured by the 0636100132: TORX SCREW. The assembly is sealed by the 4699309077: HOUSING COVER, which must be inspected for cracks or warping during bushing replacement.

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