JDC Billet Aluminum Underdrive Water Pump Pulley (Evo 8/9)


$ 105

JDC Billet Aluminum Underdrive Water Pump Pulley

The JDC Billet Aluminum Underdrive Water Pump Pulley is 10% bigger than the factory water pump pulley, which helps slow the water pump down for high revving motors and reduce high RPM cavitation. 

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  • Lighter than the OEM pulley
  • Constructed from 6061 Billet Aluminum
  • Reduces high RPM Cavitation
  • Over-engineered to be extremely strong and durable
  • Requires less inertia on the motor to spin the pump, which can free up horsepower
  • Features an outer lip to keep the belt on the pulley
  • Works on stock street cars to highly modified race cars


  • Evo 4-9

What's In The Box?

  • (1) Billet Aluminum Water Pump Pulley
  • (4) Titanium Bolts
  • (4) Titanium Lock Washers)

Titanium Hardware Color Options:

  • The Included titanium hardware can be colored in any of our standard anodized colors. Select the hardware color you'd like from the drop-down menu.
  • The pulley itself is only available in a CNC polished finish.

Shipping Times:

  • When the pulley is ordered individually, it usually ships within 2-4 business days, but shipping times may vary depending on other parts placed with the same order. 

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