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Moroso Vacuum Pump V-Belt Pulleys

5.0 out of 5 stars 3 Customer Reviews

Moroso competition-style vacuum pump V-belt pulleys bolt directly onto OEM, Holley, and other smog pumps used as engine vacuum pumps to improve ring seal. Their deep V-groove design ensures belt retention under all racing conditions. They're machined with six holes to reduce weight, and they use the stock mounting pattern.