Company Profile

Stewart Components is an industry leader in high performance automotive cooling system research and development. For the past 25+ years, Stewart water pumps have been the #1 choice for professional engine builders, race teams, and performance enthusiasts, from street rodding and OEM replacement applications, to the most extreme forms of motorsports in the world. The development and production of high performance water pumps has resulted in innovations like special high strength castings, larger flow passages, more efficient impellers, and stronger bearings. 

In January of 2001, Stewart Components was acquired by Engineered Machined Products, Inc., in a strategic move by EMP to expand its water pump line, while entering a new niche market focused on the high performance racing industry. EMP is North America's leading supplier of cooling pumps in the diesel industry, and is a recognized leader in the development and advancement of pumps and pumping technologies.

Together, EMP and Stewart Components have combined forces to bring advanced, innovative engineering and manufacturing abilities to the high performance market. Both companies have extensive knowledge and experience in the utilization of design and manufacturing software, and are able to apply sophisticated mathematical models to analyze specific issues applicable to the high performance market. These capabilities have led to great performance gains in previous water pump designs, along with altogether different products and ideas that have proven more efficient than current cooling system components.

Stewart is a proud sponsor of many racing organizations and prides itself on being a prominent member of the race community. We hope that our website is helpful and informative; we encourage you to visit the tech support page and participate in our discussion forum. If there is anything that we can further assist you with, please feel free to contact us.