Keep your International 9900/i/ix transmission incredible with our high-quality transmission cooler assortment. Built for heavy-duty use, these coolers offer 200 PSI max operating pressure and can handle temperatures up to 300 degrees. Compatible with various International Navistar and other semi-truck models, they are installed quickly to provide reliable cooling and prevent transmission issues. Upgrade your cooling system for improved performance, longer transmission life, and peace of mind on the road.
Frequently Asked Questions About International 9900/i/ix Transmission Coolers
Will this transmission cooler fit my International 9900, 9900i, or 9900ix?
These coolers are designed to fit the International 9900, 9900i, and 9900ix models, but exact fitment can vary depending on the model year, transmission type, and how your truck was originally configured. Always check the listed specifications and compare them to your truck's existing cooler before ordering, and reach out to our team if you're unsure.
What material are these transmission coolers made from?
Transmission coolers in this category are typically constructed from aluminum for efficient heat dissipation, often with steel end tanks or mounting brackets for added durability. Material specifics can vary by manufacturer, so check the individual product listing for exact construction details.
Is this a direct OEM replacement or an aftermarket part?
We carry both OEM and aftermarket transmission coolers for the International 9900/i/ix series. OEM parts are built to match factory specifications exactly, while quality aftermarket options can offer a cost-effective alternative. Each listing will indicate whether the part is OEM or aftermarket so you can choose what works best for your truck and budget.
What should I check before installing a new transmission cooler?
Before installation, inspect your transmission lines, fittings, and mounting brackets to confirm they match the new cooler's connections. It's also a good idea to flush the transmission cooling system to remove any debris or old fluid that could contaminate the new cooler. If you're not comfortable with the installation process, we recommend having a qualified diesel mechanic handle the swap.
How do I know if my current transmission cooler needs to be replaced?
Common signs include visible leaks, corrosion, bent or damaged fins, transmission fluid running hotter than normal, or fluid discoloration from overheating. If you're noticing any of these issues, it's a good idea to inspect the cooler closely and consider a replacement before it leads to more serious transmission problems.
