... , more stable speed control Cummins Engine Speed Control Unit 3044196Description: EFC3044196 speed controller is composed by full electronic ... multifunctional machines, which also has the safety protection for short-circuit failure and lack of revolution speed transducer signal ... Stamford AVR: AS440, MX321, MX321-A, MX341,MX341-A, SX440, SX440-A, SX440-T, SX460, SX460-A.3. Leroysomer AVR: R230, R438 ...