ZF 4699.008.051 GK16 | OEM Genuine Part

Overview

The ZF 4699.008.051 GK16 is a precision-engineered gear kit designed for heavy-duty construction machinery transmissions. This OEM genuine part sits within the planetary gear set assembly, directly managing torque distribution and rotational speed transfer between the input shaft and the output drive. As a critical component of the GK16 gear cluster, the SKU 4699.008.051 ensures synchronized engagement under high-load conditions, reducing stress on adjacent housing units. When installed alongside the 4699101181 HOUSING and the 4699301191 HOUSING, this gear kit maintains proper alignment within the transmission casing, preventing premature wear on the 4699301041 COVER assembly.

Symptoms of Failure

When the ZF 4699.008.051 gear kit begins to degrade, operators often notice distinct performance issues. Gear slipping under load is a primary indicator, particularly when excavators or loaders attempt to climb grades. Metallic grinding noises from the transmission housing typically accompany worn gear teeth, signaling imminent failure. Oil contamination with metallic debris appears in the fluid during routine checks, often traced back to this gear cluster. Additionally, erratic shifting between forward and reverse occurs when the gear kit loses its tooth profile integrity, causing delayed engagement that stresses the 0634303936 O-RING seal.

Technical Specifications

Compatibility

This GK16 gear kit is engineered for ZF WG series transmissions commonly deployed in construction machinery. Primary compatibility includes the ZF WG180, WG200, and WG210 models, where it functions as the intermediate gear set between the torque converter and the final drive. It also integrates with select ZF 4WG-200 and 5WG-210 variants used in wheel loaders and graders. For proper installation, verify that the 0630513203 SNAP RING and 0750110302 SHAFT SEAL are replaced simultaneously to prevent axial play and fluid bypass.

Related Components