ZF 4699.197.037 CARRIER | OEM Genuine Part

Overview

The ZF 4699.197.037 CARRIER is a critical load-bearing component within the planetary gear set of heavy-duty construction machinery transmissions. This OEM genuine part serves as the central hub that houses and positions the planetary gears, ensuring precise torque distribution and rotational stability under extreme loads. Located in the final drive assembly, the carrier directly interfaces with the sun gear and ring gear to facilitate smooth power transfer. The SKU 4699.197.037 is engineered to ZF’s exacting tolerances, making it essential for maintaining drivetrain integrity in excavators, wheel loaders, and crawlers. When this carrier wears, the entire gear train loses alignment, leading to cascading mechanical failures.

Symptoms of Failure

• Intermittent gear slipping under load – A worn carrier allows planetary gears to shift out of mesh, causing sudden loss of traction or drive power during heavy digging or lifting operations.
• Metallic grinding noise from transmission housing – As the carrier’s bearing surfaces degrade, you’ll hear a distinct low-frequency grinding sound, particularly during turns or when reversing direction.
• Visible oil contamination with metallic particles – Carrier wear generates fine steel debris that turns transmission fluid into a gray, metallic slurry, often visible on the dipstick or during oil changes.
• Vibration in the driveline at low speeds – A failing carrier creates uneven gear rotation, producing a rhythmic shudder felt through the chassis at speeds below 10 mph.

Technical Specifications

Compatibility

This carrier is designed for ZF’s WG series powershift transmissions commonly used in construction machinery. It directly fits the following models: WG180, WG200, WG210, and WG250. It is also compatible with select variants of the WG150 and WG300 series where planetary gear sets are employed. Always verify your transmission’s serial number against ZF’s application guide before installation.

During replacement, the carrier works in concert with several adjacent components. The 4699003064 GK20 II gear kit provides the mating planetary gears that seat directly into the carrier’s pockets. The 4699101109 HOUSING encloses the entire carrier assembly and must be inspected for wear marks. Power enters through the 4699102149 INPUT shaft, which drives the sun gear within the carrier, while the 4699103030 OUTPUT flange transfers torque from the carrier to the final drive.

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