For 1979 current BRP OMC and JohnsonEvinrude 479 series controls and engines. The TfXtreme HiPerformance Cable starts with a 1x13 wire core for strength and flexibility even with heavy loads next a nylon core coating for smooth action and long life. Over that a longwearing HDPE liner ultra smooth and lubed for life. Over that .033 oil tempered lay wires for superior strength and performance and finally the outer coat is a .34 super tough HDPE jacket for ultimate protection against UV chemicals and weather. These cables may require connection kits on some engines. Use regular Teleflex connection kits.