This Dayco 89504 Accessory Drive Belt Idler Pulley replaces Four Seasons 45939, Gates 36271, Hayden 5939, ACDelco 36271, CARQUEST 36271, Duralast 231504, Mitsubishi MD374878, NAPA 36271, INA US FP09051, OEM parts and is perfect for replacement or a performance upgrade. .
