Premium Replacement Universal Alternator with Single Groove Pulley - 12V 55AReplacement alternator that will fit Yamaha, Marine Power, Crusader, Replaces Motorola, 12 Volt, 55 Amp, Internal regulator Includes: Tachometer terminal, indicator light terminal, remote battery sensing terminal, excite terminal, 1-inch mounting foot with 3-ear adjustment, Single groove pulley included.Features:All alternators are engineered for performance and reliabilityAll alternators are engineered and manufactured with precision and qualityAll alternators must meet or exceed OEM performance before being boxedReplaces:CRUSADER Alternator 39200WESTERBEKE Alternator 39790YAMAHA Alternator 19-1400-10SIERRA Alternator 18-6843*ARCO Assurance 12-month part and labor warranty protection