Frequently Asked Questions About International ProStar Charge Air Coolers

Will this charge air cooler fit my specific ProStar model year?

Our charge air coolers are designed to fit International ProStar models from 2008-2017. However, there are variations based on engine type (Cummins ISX, MaxxForce, etc.) and whether you have a standard or extended hood. Always verify your specific engine model and VIN before ordering, or contact our support team with your truck details for exact fitment confirmation.

What's the difference between OEM and aftermarket charge air coolers in terms of quality and performance?

Aftermarket charge air coolers we carry meet or exceed OEM specifications, featuring aluminum cores with reinforced tanks and quality welds. Many customers report equal or better cooling efficiency compared to factory units at a lower price point. Key differences include thicker core designs on some aftermarket options and enhanced durability features like reinforced mounting brackets that address common OEM failure points.

How difficult is the installation, and what tools do I need?

Installation typically takes 2-4 hours for experienced mechanics. You'll need basic hand tools, including socket sets, wrenches, and screwdrivers. The most challenging aspects are accessing mounting bolts behind the grille and properly aligning inlet/outlet connections. Many customers recommend having a second person to help position the unit. Some models may require removal of the front grille assembly for easier access.

What are the most common signs my charge air cooler needs replacement?

Watch for excessive black smoke, loss of power especially when pulling loads, higher than normal exhaust gas temperatures, and visible oil residue around cooler connections. Physical inspection may reveal cracks in the plastic tanks, bent fins restricting airflow, or internal leaks detected by pressure testing. If your boost pressure readings are inconsistent or you're experiencing frequent regeneration cycles, these are also indicators of charge air cooler failure.

Do these charge air coolers come with new gaskets and mounting hardware?

Most replacement charge air coolers include new rubber mounting isolators and basic hardware, but inlet/outlet gaskets or clamps are typically sold separately. We recommend purchasing a complete installation kit that includes new hose clamps, silicone connectors, and gaskets to ensure a proper seal. Using old gaskets often leads to boost leaks and premature failure of the new cooler.