Repair, Rebuilding & Replacement Services for Heavy Equipment Radiators

If it’s broke we can fix it. If it’s underperforming we can optimize its efficiency. 


As a 3rd generation radiator shop in Colorado, ACJ Heavy Equipment Radiator employs over 70 years of combined experience and expertise in the heat transfer industry to solve your problems. Most importantly, we are committed to offering the best service, product, warranty and pricing in the industry. No excuses. Our experience ranges from radiators for trucks, trains, generators, mining equipment and even a desalination plant on a volcanic island in the middle of the Caribbean. We service cooling systems and radiators for commercial, agricultural, construction and mining industries in and around Colorado.


So you name it we’ve fixed it. No job is too big or too small. 



- Inspect

- Diagnose

- Clean & Repair

- Clean & Recore

- Clean & Rebuild

- Custom Cooling Packages (Can include radiators, charge-air-coolers, air coolers, oil coolers in any combination) - Increased air-flow through core surface design - Repowers



- Aluminum

- Copper & Brass

- Stainless Steel

- Steel


PRODUCTS- Click on products below to learn more





-High-Pressure Coolers

-Charge Air Coolers

-Diesel Tanks

-Fuel Tanks


Recore Warranty Same as
New for Entire Unit

Tanks, Cores & Workmanship Louvered and anti-clogging non-louvered fins

© 2018 by ACJ Radiators.
Proudly serving the cooling system needs of heavy-duty agricultural, construction, drilling, mining and power generation equipment; school and transit buses; and over-the-road trucks in Colorado, Kansas and Wyoming for three generations.