High-quality double-sealed bearing to resist damage from contaminants.

Steel or plastic construction for long-lasting durability against heat, shock and corrosion
Belt Pulleys are engineered to effectively route the serpentine belt for proper alignment with the accessory drive belt, thereby keeping the alternator charging, the water pump running, and the power steering pump and A/C compressor operating properly.
? California Proposition 65 WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.