Parts such as the Fuel Evaporative System: Clamp,hose, Clamp, Canister Bracket, Tube,5x10x610,red are included in the En450a1 454ltd 1985 Usa California Canada Fuel Evaporative System parts fiche.
On this parts fiche the Clamp,chain Oiler is the most specified component.
The most expensive part in this assembly is the Canister.