Futaba 1M11K51803 - Upper Case Replacement for HPS-CT500 Servo  [FP-1M11K51803]

Upper case for HPS-CT500

This is the Futaba 1M11K51803 upper case designed for use with the Futaba HPS-CT500 servo as a direct replacement housing. As an RC-scale accessory, it serves to restore or protect the servo's external shell after wear or impact, and to keep internal components aligned during normal operation and setup.

Installation is straightforward for anyone familiar with standard servo servicing: remove the servo horn and mounting screws, lift the original upper case, transfer any gaskets or internal fittings as required, and secure the replacement in the original screw locations. Do not force parts, and verify gear alignment before final reassembly.

In workshop and tuning contexts this upper case supports routine maintenance and quick part swaps between events, helping reduce downtime while preserving the servo's mounting fit and control link interfaces.