This genuine Ametek-Lamb vacuum motor fits on the following models; Windsor Saber Compact 17, Tennant T7, 3540, Nobles Speed Scrub Ride, Tomcat 290 and 350 (before serial number 40657).
Below are other options that may meet your needs. Alternatives include lower cost items, genuine OEM parts and items will ship from other locations so you can consolidate your shipping and minimize expense.