The Kwikee Control Unit is a replacement for the Kwikee Pre-IMGL/9510 Step with 5323 and 5327 switches. Get your steps back to work with an exact-match replacement control unit from Lippert. When it comes to fixing your Kwikee Electric RV Steps, this control unit assembly is just like your original unit. In no time, your steps will be operating like usual at the campsite. Designed for Kwikee step assemblies manufactured between 1999 - 2005.• Automatically extends and retracts steps• Exact-match replacement• For step units that were manufactured from 1999 to 2005 Automatically extends & retracts steps For step units that were manufactured from 1999 to 2005 | Lippert Kwikee Control Unit for Pre-IMGL/9510 Step Control with 5323 and 5327 Switches