There’s hardly anything on a truck that’s simpler than its air-intake system. And not too many things – maybe only your right foot – that can have as much effect on fuel economy. A diesel engine needs ...

Cold air intake filter cleaning is necessary to maintain the fuel economy of your car. When properly maintained, the cold air intake can increase your car's horsepower by increasing the flow of air to ...

For the International 9400, the correct air filters — P605955 and P544703 — are critical to maintaining proper airflow and protecting the engine. OEM-specified parts ensure a precise fit and ...