Zip Corvette sales and customer service representatives are here to serve you during the following hours:
Mon-Fri. 8:00am-5:00pm
Sat-Sun: Closed
(Eastern Standard Time)
Zip’s showroom will be unavailable for walk-in shopping or order pickup. Local customers are encouraged to call us at 1.800.962.9632 to place an order with your favorite Zip salesperson. All customers can continue to shop securely online 24/7 at zip-corvette.com. Orders are shipping as usual. All in-stock parts ship same-day when your order is placed by 3pm ET Monday-Friday.
Other questions? Contact us here 24 hours a day 7 days a week.
If you hear a buzzing noise immediately following engine shutdown, the bearings have failed - If the pulley will not spin freely at, the internal spring has locked up. (causing increased tensioner movement or belt span vibration) - If the pulley won't spin freely in one direction and engages the alternator in the other direction - All are signs that the pulley requires replacement.
IDP or "Isolating Decoupler" Pulleys are also abbreviated as OAD pulleys; "Overrunning Alternator Decoupler" and can "decouple" or smooth the belt torque changes in either direction. A lower cost clutch pulley cannot offer this same benefit; it "slips" in one direction only. Only a true IDP/OAD pulley can provide the belt system with controlled drive torque providing higher efficiency along with reduced noise, vibration, and belt "slap".