KYB MX500 Swing Motor Overhaul Kit

This hydraulic swing motor overhaul kit is engineered for KYB MX500 series swing motors commonly found in hydraulic excavators and wheel loaders. The kit contains critical wear components for a full rebuild: nine piston shoes, one cylinder block, one valve plate (M type), one retainer plate, one ball guide, one shoe plate, and one drive shaft with 20-tooth spline and 404 mm length (T20 x L404). Components are manufactured to OEM specifications for dimensional accuracy and material hardness, ensuring proper hydraulic sealing, load distribution, and rotational stability. The kit restores motor efficiency and pressure retention. Compatible with equipment utilizing the KYB MX500 pump/motor unit. Oil seals are typically supplied separately or included per supplier terms.