HP500 Serpentine Pulley 6-Rib 

HP500 / Hardin Drive Kit Serpentine Pulley 6-Rib (Needs Mandrel to Mount)

All Hardin Marine Sea pump pulleys for Gen 4 & 5 v-groove bolt use a mandrel on the pump, then the pulley bolts to the mandrel. Some manufacturers sell you a press-on pulley, these usually work themselves off. This pulley is for HP500 engines, and Hardin Marine Drive Kits only.

Note:  Mandrel Sold Separately.