Semi Truck & Bus Filters | Heavy Duty Vehicles | NAPA Filters Driving up steep hills and mountains. Heavy towing and big weight loads. And an engine’s biggest nightmare, stop and go driving in heavy traffic. NAPA makes filters for buses, big rigs, semi-trucks, trailer-trucks, tractor trailers, 18-wheelers, and more, all designed to help your trucks and buses take any conditions Mother Nature can dish out. Best Automotive Fuel Filters - Top 5 Picks! Best Automotive Fuel Filters – Top 5 Picks! They have a chrome model that is transparent, which makes inspecting the part extremely easy for drivers. 2. A great diesel filter to buy is the Mr. Gasket 9746 Chrome Plated Canister Fuel Filter. This is the perfect compliment to performance machines as it filters fuel by receiving it from the head.