This is a brand new mower idler pulley. The specs are as follows:

•  V-Idler w/o flanges. Composite. Fits 25", 30", 36" rear engine rider models 7-25501, 7-30502, 7-35500.
Material     Plastic
Description     With Heavy-Duty Bearing
A     3"
C     1/2"


Replaces part numbers
 
280-339     STENS
34-824     OREGON
7127     ROTARY
91178     MURRAY

Thanks for looking!!

B1SB7127