1 Wire Deluxe Alternator Kit, Fits Lincoln Sa 200 250 gas Redface & Shorthood W/ 5/8" pulley & high quality 5/8" gates grooved belt, also has complete Alternator bracket set (zinc plated) with all hardware to mount. 1-WIRE ALTERNATOR WITH INTERNAL REGULATOR, TIME TO UPGRADE YOUR LINCOLN SA-200 RF / OR SHORTHOOD, THIS CHARGES YOUR BATTERY BASED ON RPM SPEED, RUN ONE WIRE FROM THIS TO YOUR STARTER SOLENOIDS MAIN POSITIVE. (YOU WILL NOT BE NEEDING YOUR OLD EXTERNAL REGULATOR), WORKS WITH NEGATIVE GROUND 12 VOLTS. AS SIMPLE AS IT GETS AND VERY DEPENDABLE!