Billet Aluminum Underdrive Water Pump Pulley – Evo 4/5/6/7/8/9


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  • These are over sized to slow the water pump down.
  • Light weight lighter then stock .
  • They reduced high RPM cavitation .
  • Reduces high rpm back pressure .
  • Less inertia to spin the pump .
  • Features an auter belt guide lip to help the belt from sliding off the pulley
  • Will free up some HP because the engine rotation assembly is not fighting the water pump .
  • Works on stock cars, street cars, track cars, and drag cars. Everyone wins!

Additional information

Finish Options

Raw, Anodized Black, Anodized Red, Anodized Purple