Description: [Function]: The function of the electric step control unit is to automatically extend and retract your RV door step with a switch control, and automatically stop the step if it encounters an obstacle. [Part Numbers]:Gear Linkage Replace Part Number:379160,1101425.Electric Step Control Unit Part Number:909510000.RV Entry Step Motor Part Number 676061 214-1001 1101428 379147 366043 369506. [Durability of Premium materials]: Premium materials and unique construction methods make our classic power electric stepper controls more durable and long-lasting. [Easy Upgrade]: Step Motor Conversion Kit contains all the necessary accessories for easy upgrade in one step. [Note]: Please confirm that the stepper control unit is compatible with your vehicle before purchase.Fitment Electric Step Motor Conversion Kit for A Linkage, IMGL motor, for Step Series 22, 23, 28A, 30, 32, 33, 34, 35, 36, 38, 40 – 379145.Package Includes:1 *Electric Step Motor Conversion KitW/o Product Instruction