Cooling system is one of the most vital systems of your 1998 GMC Jimmy. It’s the one responsible in releasing or dissipating the heat away from the engine. This will primarily help remain at the normal engine operating temperature level which is important for smooth and uninterrupted performance and efficiency. One of the most important parts of the cooling system which is also accountable for bringing the liquid coolant to the engine is the water pump. This can either be mechanically or electrically powered, depending on the type of engine your vehicle has. The GMC Jimmy water pump you got there is designed to force the coolant to travel from the radiator towards the engine chambers for heat absorption, and the back to the radiator for heat dissipation. Failure in this particular engine cooling system component will cause inefficiency with the engine performance, specifically with the combustion process. The usual result of a problematic water pump is engine overheating. Such can cause further problem with the engine. It may require more repair and replacement costs. Don’t let a faulty water pump to cause you more trouble. Have it replaced with the GMB water pump that can easily be found in our online auto parts and accessory store. We’ve got here cast iron housing for GMC Jimmy GMB water pump, equipping the device with more capability to withstand massive pressure. It also has a high resistance against corrosion for longer use. If you need to find the right unit for your GMC Jimmy 1998 model, you can have the GMB G3000-170563 water pump which is as well available in our comprehensive online catalog. We are offering wide selection of this product at very reasonable cost.