Frequently Asked Questions About International 9900/i/ix Charge Air Coolers

Will these charge air coolers fit my specific International 9900 model year?

Our charge air coolers are designed to fit International 9900, 9900i, and 9900ix models from 1999 through 2010. However, there are variations based on engine type (Caterpillar C15/C16, Cummins ISX, or Detroit Series 60) and whether you have a standard or extended hood. Always verify your engine model and VIN before ordering, as some 2008-2010 models may have different mounting configurations. If you're unsure, contact us with your VIN and we'll confirm the correct part number.

What's the difference between OEM and aftermarket charge air coolers for my truck?

Aftermarket charge air coolers typically feature aluminum cores with reinforced plastic or aluminum tanks, matching OEM specifications for cooling efficiency at 30-50% less cost. OEM units often have slightly thicker mounting brackets and may include pre-installed sensors. Our aftermarket options meet or exceed OEM cooling capacity (measured in BTU/hr) and include the same 2-inch inlet/outlet connections. The main differences are price and warranty length - OEM typically offers 1 year while quality aftermarket units provide 2-3 year warranties.

How difficult is it to install a charge air cooler on my 9900ix?

Installation typically takes 3-4 hours for experienced mechanics and 5-6 hours for DIY installers. You'll need to drain coolant, remove the grille assembly, disconnect charge air pipes, and unbolt the old cooler. Common challenges include accessing lower mounting bolts (a swivel socket helps) and properly aligning new rubber isolators. Some 2005+ models require transferring the ambient air temperature sensor from your old unit. Basic hand tools, a torque wrench, and new clamps are required. Professional installation runs $300-500 depending on location.

What are signs my International 9900's charge air cooler is failing?

Watch for these symptoms: excessive black smoke under acceleration, loss of power (especially when pulling loads), coolant in the charge air pipes, oil residue at pipe connections, or engine codes P0299 (underboost) and P0234 (overboost). Physical signs include visible cracks in end tanks, bent cooling fins blocking airflow, or white residue indicating coolant leaks. Most 9900 series coolers fail between 500,000-750,000 miles, with tank separation being the most common issue on 2002-2006 models.

Are there different styles or configurations I need to consider?

Yes, International 9900 series trucks use three main charge air cooler configurations: standard mount (most common), low-mount for trucks with oversized radiators, and side-mount for certain custom applications. Dimensions vary from 31-36 inches wide depending on your cooling package. Some models include integrated oil coolers (check for additional fittings). EPA07 compliant engines (2007+) may require coolers with EGR compatibility. Always match your core thickness - standard is 2.5 inches, but heavy-haul specs may use 3-inch cores.