Sen-Dure Products manufactures custom and OEM Heat Exchangers and Oil Coolers in copper and cupronickel alloys. For over 80 years, our superior shell and tube designs, outstanding quality and customer service have earned Sen-Dure a worldwide reputation.  Working within the confines of your heat transfer application, Sen-Dure Products will design a heat exchanger that will deliver both optimum performance and facilitate the most compact and simplest installation. Be it transmissions, engine oils, coolants, water, air, hydraulics, industrial, automotive or marine, one unit or OEM quantity, Sen-Dure has the solution for your application.