FC 15-421D / 29-421D 15" Pad Driver Assembly for Factory Cat Tomcat Floor Scrubbers. Our short trim pad driver has 1/2" uneven poly filaments which "stab" into your floor pad. Assisted by our pad centering device. Designed specifically for holding your floor pad to the floor scrubber. Includes 8 point clutch plate. Some older models require a 6 point clutch plate (if a 6 point plate is needed, please reference FC 7-421D-6PT in the Special Instructions box at checkout). Please check your existing brush/pad driver set up before ordering. Commonly listed as a 15" pad driver. Most machines require two or three pad drivers, priced each. These are commonly bundled to reduce shipping costs. Fits Factory Cat Pilot 28, Models 29, 29SS, 290D, GTX 30D, Magnum 30D, 250-15, Tomcat 3000D, XR-45 and other models. Many of these scrubbers are offered in a cylindrical brush model. Please check your machine parts manual before ordering. Priced Each. Replaces Factory Cat Tomcat 15-421D, 29-421D. Our Part Number FC 15-421D