Later Fluidampr 840801 dampers for the 2JZ use a removable pulley, so the drive ratio can change without replacing the damper. This 15% underdrive pulley slows the accessory drive for high RPM use and is the pulley that comes on Fluidampr 840811.

Fluidampr 500809 15% Underdrive Crankshaft Pulley Features:

• For 2020 and later Fluidampr 840801 2JZ dampers with the removable pulley
• Pulley only; damper and mounting hardware not included
• 5 in. outside diameter, 1.014 in. depth
• 6-rib serpentine
• 1.979 in. inside diameter
• Three mounting holes
• Aluminum construction
• 0.7 lbs