To fully design and reverse-engineer the 4-stage pump according to the foreign model, the sample pump was quickly disassembled, itemized, and reverse-engineered. The design and manufacturing method of each component was included in a technical manual. Then, it was manufactured from plans without access to the original equipment. Since comparison of new and original equipment wasn’t feasible, the company had to start reverse-engineering with a used component, which made designing and mapping with correct tolerances very difficult and complex. Meanwhile, modeling and casting, especially from the aforementioned material, was also complex and required unique technologies. First, 60 parts were manufactured and assembled with different hardness levels. Due to manufacturing complexity, especially the body, assembly conditions, and tolerances, it is the first pump to be produced in Iran. To improve product lifespan, a new casing material was designed and the body was converted from simple carbon steel to 316L stainless steel. Notwithstanding annual inflation of raw materials and given manufacturing within a year, it costs 20% of the foreign variant.