OTTO Excavator Spare Parts Ex200 6Bd1 Oil Filler Cap 1117500240 111750-0240 1-11750024-0 For Isuzu OTTO's oil filler cap for Ex200 excavators with Isuzu 6Bd1 engine. Part numbers: 1117500240, 111750-0240, 1-11750024-0. Seals the oil fill opening to prevent leaks and keep contaminants out, maintaining engine oil integrity for optimal performance.