Description
Mercruiser 575 SCi 256 Holley, Weiand, or B&M replacement idler pulley bearing. Fits inside 848091T.
If you need assistance in replacing this, please send it in to JB Performance. We can complete the replacement for less than 0.10 in labor.

Carbon fiber coupler 22mm thick (Whipple style)
JB Performance Rotor Seal Collars
Mercrury Racing 1075 SCi Supercharger Rebuild
Drive snout rebuild kit- front entry
Mercury Marine, B&M, Holley, Weiand Rotor or pulley bolt 