There is no system more important to your vehicle’s longevity than your cooling system. The heart of your cooling system is the water pump. The water pump on most vehicles runs off of the timing belt, chain, or another auxiliary belt. On most vehicles, it is an impellor that sits within the engine block, spinning and circulating the coolant through the cooling system. If your water pump fails, than your engine can overheat in almost no time at all. In some cases, you may even be able to run with low oil pressure than without a water pump. If your water pump is failing, then you should replace it with a high quality Airtex water pump. The Airtex water pump is manufactured to very high standards. The bearings are all machined using the best materials, and you can be confident that an Airtex water pump will last at least as long as your OEM water pump. For most vehicles, the water pump will be a service item with a specified maintenance interval. Because replacing the water pump can be a very involved process, and the Airtex water pump us fairly inexpensive, whenever you find a reason to remove the water pump, such as when changing a timing belt, you should replace it unless yo have very recently done so. All our customers deserve professional support while buying reliable car parts. That's why we've built a 24-hour, 7 day a week customer service call center to support you with your needs. To make a good deal even better, there is always completely free shipping for each order $50 or more. If you find a better price, tell us - we always beat any advertised price for auto parts.