ALTHOUGH 4 PRONGS ON YOUR FOOT PEDAL THE 620-625 626 ONLY USES 3 OF THE PINS INTERNALLY SO THIS IS THE PROPER EXTENSION EVEN THOUGH IT ONLY HAS 3 PINS...

THIS IS A  USED BUT IN GOOD SHAPE GENUINE OEM  SINGER SEWING MACHINE CASE EXTENSION...  GRAY IN COLOR...CONNECTION TERMINAL BLOCK  3 PIN/PRONG EXTENSION FOR CASE MOUNTING OF MACHINE -  REMOVED FROM A VINTAGE MACHINE.. FITS  620 625 626  .SHOWS  MARKS/SCUFFS FROM NORMAL USE... .WARRANTY VOID LABELS IN PLACE TO PREVENT SWAP OUTS... ..  

BUY IT NOW BEFORE SOMEONE ELSE DOES.  IF YOU PUT IT IN YOUR WATCH LIST IT WILL PROBABLY BE GONE WHEN YOU COME BACK TO BUY IT JUST LIKE AT THE FLEA MARKET/SWAP MEET WHEN YOU GO BACK FOR AN ITEM ITS ALWAYS GONE.        BUY IT NOW....

I DO NOT USE STOCK PHOTOS OR OTHER PEOPLES PICS. THE ITEM YOU SEE IS THE ITEM YOU ARE BIDDING ON.

CHECK OUT PICS AND SEE WHAT YOU THINK.