Rotary 8999. RETAINER BUSHING ONLY FOR EXMARK. USED ON EXMARK 1-3322154 WHEEL ASSEMBLY & OUR 08-8197 WHEEL ASSEMBLY FOR GRAVELY. OD 1-1/2" (38.10MM), ID 3/4" (19.05MM). THE O.D. ON THE FIRST STEP IS 1.390".  Fits Hustler wheel 768044.

Replaces
EXMARK: 3322154
HUSQVARNA: 539102484
HUSTLER: 772806

SR-1