Jirgin ƙasa na dogo da motocin jigilar kaya suna buƙatar manyan kayan aikin injiniya don sassa na simintin gyare-gyare da sassa na ƙirƙira, yayin da juriya mai girma kuma muhimmin abu ne yayin aikin. Ana amfani da sassan simintin ƙarfe, sassan simintin ƙarfe da sassa na ƙirƙira don sassa masu zuwa a cikin jiragen ƙasa da motocin jigilar kaya:
- - Shock Absorber
- - Draft Gear Jikin, Wedge da Mazugi.
- - Dabarun
- - Birki Systems
- - Hannu
- - Jagora