Shop International 4700 - 4900 AC Driers & Compressors

International 4700-4900 AC Driers & Compressors

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.

Frequently Asked Questions About International 4700-4900 AC Driers & Compressors

Will these AC components fit my specific International 4700 or 4900 model year?

Our AC driers and compressors are designed to fit International 4700 and 4900 models from 1990 through 2003. However, compatibility can vary based on your specific engine configuration and AC system type. We recommend checking your original part numbers or contacting our support team with your VIN to ensure proper fitment. Some mid-year production changes may require different components.

What's the difference between aftermarket and OEM AC compressors for my truck?

Aftermarket compressors typically offer 70-80% of OEM performance at a significantly lower price point. They use similar internal components but may have different mounting brackets or clutch assemblies. OEM compressors provide exact factory specifications and typically last longer under heavy-duty use. For most applications, quality aftermarket units work well, but if you're running high hours or extreme conditions, OEM may be worth the investment.

Do I need to replace the drier when installing a new compressor?

Yes, you should always replace the receiver drier when installing a new compressor. The drier contains desiccant that absorbs moisture from the AC system, and once exposed to air or after system contamination, it loses effectiveness. Failing to replace the drier can lead to moisture damage in your new compressor and void most warranties. Plan to spend an additional $30-60 for a quality drier.

What tools and refrigerant amount do I need for installation?

Installation requires basic hand tools, a vacuum pump, manifold gauge set, and refrigerant recovery equipment. Most International 4700-4900 models use R-134a refrigerant, with system capacities ranging from 2.5 to 3.5 pounds depending on cab configuration. You'll also need PAG oil specific to your compressor model. Professional installation typically takes 2-3 hours and ensures proper system evacuation and charging.

How can I tell if my AC compressor is failing before it completely stops?

Common warning signs include loud grinding or squealing noises when the AC engages, intermittent cooling, excessive clutch cycling, or visible refrigerant leaks around the compressor shaft seal. Check for metal shavings in the refrigerant lines or orifice tube - this indicates internal compressor damage. If you notice any of these symptoms, address them quickly to prevent contaminating your entire AC system with debris.