The air intake system delivers clean, filtered air to the engine cylinders for combustion. It includes the air cleaner housing, filter elements, intake piping, air crossover tubes, and the intake manifold. On turbocharged Cummins engines, the intake system also includes the compressor outlet piping, charge air cooler (aftercooler) connections, and boost pressure sensing lines. Air leaks downstream of the turbocharger compressor reduce engine performance and can trigger fault codes. Restricted or contaminated air filters increase exhaust temperatures and accelerate internal engine wear. The air compressor — a separate component driven by the engine gear train — supplies compressed air for brake systems and pneumatic equipment.
AMS Parts supplies a wide range of air intake & compression components for Cummins engines used in power generation, marine, and industrial applications. Browse a selection of available parts below, or contact us for specific requirements.
Below is a selection of air intake & compression parts we supply. Use the search bar above to find a specific part number, or request a quote. You can also reach us directly at [email protected] or +44 7776 800169.
Air filter replacement intervals depend on the operating environment. Engines operating in dusty or dirty conditions may need filter changes more frequently. Most Cummins engines are equipped with an air filter restriction indicator — when it shows red or reaches the specified restriction limit, the filter should be replaced.
The air crossover (or air transfer tube) carries compressed charge air from the turbocharger compressor, through the aftercooler, and into the intake manifold. A leak in this circuit — from a cracked tube, loose clamp, or deteriorated hose — results in boost loss, reduced power, and increased exhaust temperatures.
The air compressor is gear-driven and consumes a small amount of engine power. A seized or failing air compressor can cause mechanical damage to the gear train. Oil or coolant leaks from the compressor can also affect other systems. Regular inspection of the air compressor is part of standard Cummins maintenance.
