1-Wire GM Alternator100 AMP Output12 VoltGM 10siInternal RegulatorChrome Plated FinishIncludes:Single Groove V-Belt PulleyFan JEGS 1-Wire Alternators:One-wire alternators have a turn-on point (sometimes called "cut in"), typically about 1200 engine RPM. JEGS has developed rotor poles and stator stacks that carry a higher magnetism to provide an instant regulator "cut in" without engine acceleration. Our 1-wire alternators are manufactured with an exclusive low "cut in" of 880 engine RPM, which is much lower than any other alternator of its type. This is the speed at which the internal sense circuitry connects the battery to the voltage regulator and turns on the alternator. Once the voltage regulator engages, the alternator will stay on and charge until the engine stops completely.JEGS 555-10108 1-Wire Alternator Features: Simple installation: connect one wire from the alternator to the battery, and you're done Manufactured with an exclusive low "cut in" of 880 engine rpm, which is much lower than any other alternator of its type to begin turning on and charging Single Groove V-Belt Pulley with Cooling Fan Specifications: 100 amp output, 12-volt, GM 10si design, internal regulator Chrome-plated for great looks and long life Made with high-quality componentsFAQWhat is a GM 1-wire alternator? A GM 1-wire alternator simplifies wiring with a single connection for power, making installation a breeze.Does pulley size matter on an alternator? Yes, pulley size affects performance. Choose the right size for optimal charging at different engine speeds.What size pulley is a GM alternator? The GM alternator comes with a standard pulley size, ensuring compatibility and efficient operation.Which is better 1-wire or 3-wire alternator? The JEGS one-wire alternator offers simplicity and reliability. No hassle with GM...