Ngwaahịa anyị gụnyere mmanụ ọkụ mgbapụta plungers, mmanụ ụgbọala nfuli, valvụ mgbakọ, mmanụ ụgbọala outlet valves, mmanụ dizel mgbapụta nozzles, mmanụ ụgbọala mgbapụta ụlọ, mmanụ ụgbọala gọvanọ n'azụ ụlọ, mmanụ ụgbọala ebufe nfuli, mmanụ ụgbọala limiter, mmanụ ụgbọala mgbapụta camshafts, aka mgbali aka, elu nsogbu mmanụ ụgbọala pipes. , ngwa nrụzi mmanụ dizel, wdg yana ụfọdụ akụkụ akpaaka.