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.

Refurbished TVS rotor pack bearing plate TVS1900, TVS2300
supercharger rotor pack seals- left and right
Oil fill plug
Kenne Bell Supercharger Oil, 8 ounces
3.6L, 4.0L, 4.2L Kenne Bell Timing Hub
Input Shaft Installation Tool for Pulley Side Seal
Pulley key 