John Deere Original Equipment Idler - AM124700.
IDLER, PULLEY ASSEMBLY WELDED 48 QT.
Specification -
A Groove Width: 0.500IN
A Effective Diameter: 4.000IN
C Groove Width: 0.562IN
C Effective Diameter: 5.622IN
Bore Size: 0.780IN
Overall Width: 1.770IN
Finish: B
Note: S

Fits the following John Deere models: 325, 335, 345, 355D, GX255, GX325, GX335, GX345 GX355, X465, X475, X485, X495, X500, X520, X534, X540, X575, X585, X595, X700, X710, X720, X724, X728, X729, X730, X738, X739, X740, X744, X748, X749, X750, X754, X758, LX280, LX289, SST18, X320,
X324, X360,
This is a OEM John Deere part.
Thanks for looking!