Kobelco 2441U829S6 Sun Gear Shaft

The 2441U829S6 sun gear shaft is a critical component in the travel reduction (propelling motor) assembly for Kobelco hydraulic excavators. It functions as the clutch input shaft within the planetary gear system of the final drive unit. Manufactured to OEM specifications with precision gear teeth and hardened bearing surfaces. Designed for high torque transmission in track drive applications. Compatible with multiple Kobelco excavator series including SK100, SK120, SK130 and MD140C models across various production years. Cross-references include superseded part number 2441U829 and alternative OEM numbers YN32W01023P1, YN32W01023P2. Verified fitment for travel reduction assemblies on listed machine models.