216-7644 Hydraulic Swing Motor Seal Kit for Caterpillar 304 Mini Excavator

216-7644 Hydraulic Swing Motor Seal Kit – Premium Aftermarket Solution for Caterpillar 304

Restore smooth rotation and entirely eliminate hydraulic oil leaks with this professional-grade 216-7644 swing motor seal kit. Specifically engineered for the Caterpillar 304 Mini Hydraulic Excavator. The swing motor is the critical component that allows your excavator’s upper structure to rotate; it operates under constant pressure and high-frequency start-stop cycles. Manufactured by WINSCHEN utilizing premium high-pressure elastomeric materials, these seals are built to withstand the rigorous demands of landscaping, trenching, and urban construction work.

Key Features and Selling Points

• Optimized Swing Performance: Precision-engineered seals prevent internal fluid bypass, ensuring your Cat 304 maintains consistent rotation torque and eliminates “swing drift” when working on inclines.
• Direct OEM Compatibility: Guaranteed to seamlessly match Caterpillar factory specifications for the 216-7644 swing motor group, facilitating an exact and straightforward installation.
• Heavy-Duty Durability: Highly resistant to severe hydraulic pressure spikes, elevated operating temperatures, and wear caused by the continuous swiveling motion.
• Comprehensive Overhaul Kit: Includes all essential service parts and premium resilient O-rings required for a complete, reliable, and leak-free swing motor rebuild.
• Cost-Effective Reliability: A dependable aftermarket alternative from WINSCHEN that delivers OEM-level sealing performance, keeping your compact machinery highly productive.

Compatible Equipment Models

Based on official catalog data, the 216-7644 seal kit services the swing motor of the following equipment:

• Caterpillar Mini Hydraulic Excavators: 304
• Application: Swing Motor Service

Specifications

Need to confirm compatibility for your specific Cat 304 machine serial number? Our technical experts are ready to assist. We offer rapid global shipping to minimize your equipment downtime.