Gillig

When it comes to Gillig charge air coolers (CACs), reliability and performance are critical for keeping your buses running at peak efficiency. At American Radiator, we supply high-quality aftermarket Gillig intercoolers designed to meet or exceed original equipment standards. Whether you operate Gillig Low Floor, Phantom, Advantage, or BRT transit buses, our CACs deliver consistent airflow, improved engine performance, and long-lasting durability.

We understand that downtime costs fleets money, which is why we back every Gillig charge air cooler with our famous same-day shipping. Choose from a standard tube-and-fin design with a two-year unlimited mileage warranty, or upgrade to our bar-and-plate severe duty model that includes a lifetime warranty for maximum protection.

As a trusted Gillig parts supplier, American Radiator not only stocks a full line of bus charge air coolers but also offers CAC repair services, helping you extend service life and reduce replacement costs. With decades of experience in heavy-duty cooling systems, we provide fleets nationwide with dependable aftermarket solutions that save money without sacrificing quality.

Call 877-203-4572 today for expert assistance and get the Gillig intercooler replacement your fleet depends on.

FAQ'S

What Gillig bus models are supported by your charge air coolers?
Our charge air coolers are designed to fit a wide range of Gillig transit and coach buses, matching OEM dimensions, inlet/outlet layouts, and mounting configurations to provide reliable performance on urban and intercity routes.

What’s the difference between bar-&-plate vs. tube-&-fin coolers?
Bar-&-plate coolers offer superior durability and thermal capacity, making them ideal for harsh duty cycles and heavy boost. Tube-&-fin coolers are lighter and more compact, suitable for standard load conditions where weight and airflow efficiency matter more.

How do I choose the correct charge air cooler for my Gillig bus?
Match the engine model, boost pressure requirements, and your original cooler’s dimensions, airflow capacity, and connector arrangement. Use those specs or your OEM part number to select an appropriate replacement from our catalog.

Can I replace just the cooler without replacing other components?
Yes — you can often replace just the charge air cooler if the hoses, clamps, and ducting remain in good condition. But replacing all related components together (cooler, hoses, clamps) ensures better longevity and reliability.

How should I maintain a Gillig charge air cooler for best performance?
Regularly inspect for fouling, bent fins, leaks, or oil residue. Clean gently in the direction of airflow with low-pressure air or water and ensure all hose connections and brackets remain tight to preserve optimal cooling and boost efficiency.