This is a brand new universal mower v belt idler. 4" with a 11/16" center, 1/2" belt width.

 
Thanks for looking!!

B1SB10134

*NOTE  GENERIC PIC   ALL BELTS ARE AFTERMARKET AND MANUFACTURED BY PIX, KEVLAR COATED AND MAY BE A DIFFERENT COLOR THAN PICTURED*  NOT MADE BY OEM VENDOR UNLESS STATED*