GM Original Equipment Engine Water Pump ACDelco 251-743 - ACEWP00001

Specifications:

• Brand New AC Delco GM Original Equipment Water Pump
• Direct replacement
• Built to strict quality control standards
• No core charge

Note: This pump will fit 99-03 4.8L, 5.3L & 6.0L engines that have the revised (48mm / 1.88") thermostat housing.  If your vehicle was equipped with the 51mm / 2.02" thermostat, you will need replacement housing 12600172.

Your water pump is a major component of your engine cooling system. If the water pump fails, the engine will overheat causing it to shut down. Water pumps have an indicator that tells you when they are going bad. There is a small hole in the water pump right under the shaft in the middle that the pulley bolts to. As the water pump's bearings wear out coolant seeps by them and leaks through this hole. If you notice a few drops of coolant under the front of your engine this is an indicator your pump is failing. If a water pump fails it will cause engine overheating, and possibly further engine damage. If you have noticed little drops of coolant under the front of your vehicle then inspect the bottom of the water pump to see if it is dripping out of the indicator hole. If your water pump is the problem, then this part is for you.

Item Condition: New

Lifetime Warranty

This item is backed by our limited lifetime warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge.