Lippert Kwikee 379648 Step LINKAGE KIT B， PRE-IMGL/9510 CONTROL STEPS WITH 909504000 MOTORS， CAST<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>The Kwikee Electric Step "B" Linkage Repair Kit is designed for series 28， 29， 31 and 39 Kwikee electric steps. The kit comes complete with everything but the step and step frame</li><li>Both a magnetic 3/8" core round door sensor and magnetic small rectangular door sensor to fit all applications</li><li>Includes "B" linkage and gear box</li><li>Note: This is Kwikee Part Number 909533000</li><li>Made in the USA</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41c2z7jb89L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31WddUqXTzL.jpg" noproxy>