Some embodiments are directed to an apparatus for limiting engine speed using any one of multiple engine components. The apparatus includes a user interface manually actuable to select at least one of the multiple engine components for limiting engine speed. The user interface includes an identification signal generator and transmitter that is configured to, upon selection of the multiple engine component(s), generate and transmit an identification signal that identifies the engine component(s) that was selected. The apparatus also includes a controller that is configured to, upon receipt of the identification signal, provide an instruction to the identified engine component(s), such that the identified engine component(s) operates to limit engine speed upon occurrence of conditions warranting that engine speed be limited.