Your AC system works hard to keep you cool on the road, and two of the most critical components are the AC drier and compressor. If either one fails, your air conditioning performance suffers fast. Our selection of replacement AC driers and compressors for International 4700 and 4900 trucks is built to deliver lasting, reliable performance in even the toughest driving conditions.

Replacement Driers & AC Compressors

We carry aftermarket and OEM-quality replacement kits that fit International 4700 and 4900 models. Whether you're swapping a failed compressor, replacing a drier after a major repair, or doing a full AC rebuild, you'll find dependable parts that match factory specifications. These components are also compatible with other major makes like Freightliner, Peterbilt, and Kenworth, making them a great fit for mixed fleets and versatile maintenance shops.

Signs It's Time to Replace Your Drier or Compressor

Your system may need new parts if you notice: - Warm or inconsistent air blowing from vents. - Unusual noises coming from the compressor. - Leaks or visible damage to AC lines or components. - Frequent compressor cycling or AC not engaging. - Foul smells or foggy windows, indicating moisture buildup. Ignoring these signs can lead to costlier repairs and uncomfortable hours behind the wheel.

Why These Parts Matter

The AC compressor is the heart of the system, pumping refrigerant through the lines to help cool your cab. The AC drier filters out moisture and contaminants, keeping the system clean and efficient. Together, they ensure your commercial truck AC system runs smoothly, delivers consistent cooling, and protects other vital components from damage.

Shop International 4700/4900 AC Driers & Compressors

Whether you're a fleet operator or a hands-on owner-operator, trust 4 State Trucks for high-quality, easy-to-install parts that keep your cooling system running strong.