OTTO Excavator Cx130B 4Jj1 Diesel Engine Camshafts 8980031290 898003-1290 8-98003129-0 For Isuzu This product is a set of camshafts designed for the Isuzu diesel engine model 4JJ1 used in the OTTO Excavator Cx130B. It helps regulate the engine's valve timing for optimal performance and efficiency.