OK request send SAA6D125E-5HR S/N 660776-UP (For GD755-5R) ENGINE ELECTRICAL SYSTEM Section ENGINE ELECTRICAL SYSTEM SAA6D125E-5HR S/N 660776-UP (For GD755-5R) Komatsu: ALTERNATOR, 75AMP f001000 STARTING MOTOR, 7.5KW f002000 WIRING HARNESS f003000