The water pump is a product of vital importance for the proper functioning of the engine. At the time of the explosion, the temperature of the cylinders was close to 2000 C, higher than the melting limit of the surrounding parts. If there was not an energetic refrigeration system, these would melt.
Electronic injection systems require the presence of a pump similar to the original: type of pump, motor, size and design of the vane. In the spare parts market there are pumps that are not worth the original pumps. The design and model of Airtex electric pumps provide the same mechanical specifications as the original pumps.