Feature: 1. Applicable Model: RV step motor conversion kit is replacement for B Linkage Gearbox, for 28, 31, 37, 39 Step Series, please confirm whether your model is applicable before buying. 2. OE Number: The part number of RV step motor conversion kit for reference is 379769, please confirm whether it is consistent with the OE you need. 3. Powerful Torque: Integrated motor/gearbox/linkage (IMGL) provides better performance and longer life. More than 40% of the motor torque gives the step a strong locking and solid feel. 4. Automatic Opening: The control unit keeps the pedal open when the door is open. The pedal can be locked in the extended position, but not in the retracted position. 5. Special Sealed Design: Fully sealed double ball bearings increase efficiency and require no maintenance. Case semi sealed to maintain consistent alignment and protect gears from elements. 6. Robust Material: Investment zinc plated steel linkage assembly are robust. The brass spherical outer cage hardening ball in the connecting rod is stronger and has better wear resistance. Specification: Item Type: RV Step Motor Conversion KitOE: 379769Fitment:Fit for B Linkage Gearbox.Universal Fit Replacement kit for 28/31/37/39 Step Series. Package List: 1 x Step Motor 32 x Mounting Accessories Note: 1. Please double check the part number of your item, matching information is for reference only. 2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!