Gillig

At American Radiator, we specialize in supplying Gillig bus radiators that deliver unmatched durability, performance, and value. As a trusted partner to transit agencies, fleet managers, and repair shops, we provide direct-fit radiator replacements for Gillig transit buses, shuttle buses, and school buses, all engineered to OEM specifications. Each radiator is pressure tested, leak-checked, and quality verified to ensure long-lasting cooling performance in demanding service cycles.

Choose from all-aluminum Gillig radiators for lightweight, high-efficiency cooling or copper/brass radiators for durability and ease of service. Many models are available in heavy-duty, bar-and-plate designs to handle extreme conditions with confidence. Every Gillig radiator is backed by our two-year, unlimited mileage warranty, with severe-duty options offering lifetime coverage.

American Radiator is more than a supplier—we are an industry authority with decades of heavy-duty cooling expertise, supported by a large in-stock inventory and our famous same-day shipping. If you need a Gillig bus radiator replacement not listed, our specialists can help identify the right fit and offer professional repair services. For reliable Gillig radiator solutions that keep fleets moving, trust American Radiator, the leader in heavy-duty bus cooling systems.