See if this works with your machine
Use this single-pedal, dual-function foot controller to control up to 2 different sewing functions, all with the press of your foot. Allows you to operate your machine while still holding on to your project with two hands. Simply replace the single-function foot controller included with your machine with this dual-function controller, and program the foot controller functions through the LCD display on your machine. This foot pedal controller can be set to control single stitch sewing, reverse stitch sewing, and moving the needle up and down.
***The BQ3100 and BQ3500 can program multiple options through the machines settings display. All other machines will have Needle Up/Down only.***
Part Number: BRO XF6708301
Alternate Part Number: SADFFC, MODEL U, FC-411, FC-411-US
Guaranteed to fit because it is a 
part.