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.
97-03 model water pumps have the thermostat as part of the thermostat housing, and is not removable (at least not by hand). This style uses a large O-ring to seal the housing to the pump. 2004-2008 water pumps have a thermostat that has a separate housing, and the thermostat easily slides out. The O-ring on this model is part of the thermostat. Another visual difference is in the casting. The 97-03 housings have an additional tab on it to hold the wiring in place for the A/C compressor. The 2004-2008 models do not have that tab. The housings are not interchangeable between pumps since the diameter of the thermostat cavity is different and the bolt pattern for the housing is different.
NOTE: GM water pumps sold after 2005 all have the 2-piece design, meaning if you ordered a new GM water pump for your 1998 Corvette, it came with the newer 2-piece thermostat.