Original Crank Pulley (Rubber Damped) – The factory pulley includes a vibration-damping rubber layer to reduce engine harmonics, minimize vibrations, and protect the crankshaft from stress.
Aftermarket Solid Pulley (No Rubber) – A one-piece metal design for durability and cost savings. Note: Since it lacks rubber damping, it may transmit slightly more engine vibration but is ideal for performance builds or budget replacements
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