ZF 4699.397.007 CARRIER | OEM Genuine Part

Overview

The ZF 4699.397.007 CARRIER is a critical load-bearing component within the planetary gear set of heavy-duty construction machinery transmissions. This OEM genuine part functions as the central hub that supports the planetary gears, ensuring precise alignment and torque distribution under extreme operational stress. As a genuine ZF component, the SKU 4699.397.007 guarantees exact metallurgical composition and dimensional tolerances required for long service intervals. It sits directly between the sun gear and ring gear assembly, transferring rotational force while absorbing radial and axial loads. When paired with the 4699101046: HOUSING and the 4699301109: HOUSING, this carrier forms the structural backbone of the transmission’s power flow path.

Symptoms of Failure

• Erratic gear engagement under load — A worn carrier allows planetary gears to shift out of alignment, causing hesitation or grinding when the machine climbs grades or lifts heavy loads.
• Metallic debris in transmission fluid — Fatigue cracks or spalling on the carrier’s bearing surfaces generate fine steel particles that contaminate the hydraulic circuit, often detected during routine oil analysis.
• Vibration and whining noise at specific RPM ranges — As the carrier’s bore wears unevenly, the planetary set develops a cyclical vibration that resonates through the driveline, particularly between 1,800 and 2,200 RPM.
• Progressive oil leaks near the output flange — Carrier distortion can compromise the sealing surface, leading to fluid seepage around the 4699301017: BEARING COVER and 4699301085: COVER interfaces.

Technical Specifications

Compatibility

This carrier is engineered for ZF’s WG series powershift transmissions commonly deployed in wheel loaders, graders, and compactors. It is a direct fit for the WG180 and WG200 models, which share the same planetary carrier geometry. The part also appears in select WG150 variants produced after 2015. Always verify the transmission serial number against ZF’s parts catalog, as earlier WG180 units used a different carrier spline pattern. For complete assembly, this carrier integrates with the 4699301017: BEARING COVER and 4699301085: COVER to seal the planetary gear cavity.

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