ZF 4699.370.025 BUSH | OEM Genuine Part

Overview

The ZF 4699.370.025 BUSH is a precision-engineered, OEM genuine wear component designed to support rotating shafts within the transmission housing of heavy-duty construction machinery. This bushing acts as a sacrificial liner, reducing friction between the shaft and the surrounding bore in high-load zones. The SKU 4699.370.025 is specifically positioned in the lower gear train assembly, where it maintains concentric alignment and absorbs radial forces. When this part degrades, it compromises the entire drivetrain’s stability, making timely replacement critical for maintaining transmission integrity.

Symptoms of Failure

When the ZF 4699.370.025 bushing wears beyond tolerance, operators will notice distinct performance issues. Oil leaks from the transmission housing often appear first, as the worn bushing allows shaft play that disturbs the seal interface. Gear slipping under load becomes common, particularly during uphill operation or when the machine is carrying a full bucket. A low-frequency vibration or “chattering” noise from the transmission case indicates the bushing has lost its press-fit integrity. Finally, erratic shift engagement occurs when the bushing wear allows the shaft to tilt, misaligning the clutch packs.

Technical Specifications

Compatibility

This bushing is a direct fit for ZF WG180, WG200, and WG210 series transmissions commonly used in wheel loaders, telehandlers, and graders. It also applies to the ZF 4WG-200 and 4WG-210 variants found in older construction machinery models. For proper installation, the bushing must be pressed into the 4699101105: HOUSING with the oil groove aligned to the lubrication port. The 0501329881: HOUSING COVER must be removed to access the bore, and a new 0634306309: O-RING should be fitted to the cover during reassembly. Always replace the 0637885612: BREATHER at the same time to prevent pressure buildup that accelerates bushing wear.

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