Cummins is among the best-known diesel engine manufacturers in the world right now, and a lot of automotive enthusiasts know them for their engines that are popularly used in Ram trucks. The 5.9L Cummins is partially responsible for the success of diesel pickup trucks, and throughout its years it has had quite a few updates. Simply put, there are two different versions of the 5.9L, namely the 12 valve and the 24 valve cummins. For more information on the 12 valve and the 24 valve cummins, visit our website at https://puredieselpower.com/