You’ve probably noticed that an increasing number of repair parts are being covered by extended new car warranties. Some warranties are written, others are the “under the counter” variety. In spite of this disturbing trend for those of us in the independent aftermarket, water pump replacements are still a good source of customer pay work for independent repair shops. Water pumps come in a wide assortment of styles and shapes. On many cars, they are now driven by the timing belt instead of the more traditional v-belt setup we saw for years. Either way, water pumps are largely neglected until they fail completely.