This Fluidampr dual alternator pulley is specified for Ford 6.0L PowerStroke applications and offers a dual-belt configuration with 5- and 7-rib compatibility. Sold as an alternator pulley accessory for Fluidampr part number 870201, it is provided to work with that pulley system and is identified by the matching fitment note.
Fluidampr Ford 6.0L Powerstroke 8in Duel Belt 5 and 7 Rib Pulley For Alternator