Heavy-duty radiator cores are primarily manufactured from aluminum or copper-brass combinations, chosen for their thermal efficiency, durability under vibration, and resistance to corrosion in demanding environments. Aluminum Cores (Modern Standard): Extensively used in modern heavy-duty trucks and industrial equipment, aluminum offers high strength and lower weight, allowing for wider, more efficient cooling tubes. These are typically brazed for a robust, one-piece construction. Copper-Brass Cores (Traditional/Industrial): Highly popular for industrial, mining, and agricultural applications, these feature superior heat transfer and exceptional durability. They are often preferred in remote locations because they can be repaired and re-soldered, unlike most aluminum cores which require full replacement. Mechanically Bonded Cores: Some heavy-duty applications, such as locomotives or off-highway vehicles, use copper-brass cores where tubes are mechanically expanded into the headers for superior strength, resisting high pressure and vibrations. Heavy Duty Enhancements: High-performance copper / brass / steel cores may use heavier, thicker fin material (0.005 etc.) and thicker-walled tubes (0.009, 0.012 etc) for increased strength and longevity. Key Considerations for Material Selection: Aluminum: Lightweight, corrosion-resistant, and ideal for reducing GVW (Gross Vehicle Weight). Copper-Brass: Higher thermal conductivity but heavier, better suited for severe environments where easy, on-site repair is required On-site manufacturing of Heavy-duty custom Copper / Brass Cores click here for more info. On-site manufacturing of Heavy-duty custom Brass / Steel Tanks click for more info.

With on-site manufacturing, Diamond Radiator produces high-performance, heavy-duty radiator cores designed for demanding industrial and automotive applications. We offer a wide selection of core materials and configurations to meet your exact cooling requirements, including: Fin Materials & Thickness Options Choose from durable fin materials such as: Copper Brass Steel Available in a variety of fin thicknesses to match your performance and durability needs. Tube Sizes & Styles We manufacture radiator cores with multiple tube size and style options, including: 1/2" and 3/4" tube widths Smooth tubes Dimple (low-flow) tubes Multiple wall thickness options Tube Layout Configurations Our cores are available in different tube arrangements to optimize cooling efficiency: In-line Staggered Centered in-line Centered staggered Fin Density (FPI) Options We provide a range of fins per inch (FPI) to suit various applications: Flat fin design: 6–14 FPI Serpentine fin design: 10–14 FPI Built For Your Application Every radiator core is engineered to deliver maximum heat transfer, durability, and performance based on your specific equipment and operating conditions. Speak with Mike, Matt, or our experienced sales team at Diamond Radiator to determine the best radiator core design and configuration for your application. For more info Contact us to help you build a Custom Manufactured Radiator 100% Canadian Made

At Diamond Radiator, we manufacture custom radiator cores and tanks built to meet or exceed OEM standards for a wide range of heavy-duty, industrial, agricultural, and transportation equipment. With decades of experience, we support hundreds of makes and models, including: Heavy-Duty Trucks & Transportation Kenworth, Peterbilt, Freightliner, Western Star, Mack, Volvo, International/Navistar, Hino, Isuzu, Blue Bird, Motorcoach & Bus Construction & Industrial Equipment Caterpillar (CAT), Komatsu, Hitachi, John Deere, Case, Volvo CE, Hyundai, Doosan, JCB, Kobelco, Kawasaki, Terex, Wacker Neuson, Tigercat Agriculture & Forestry Equipment Kubota, Massey Ferguson, New Holland, Ford (Tractors), Madill Material Handling & Specialty Equipment Hyster, Toyota, Kalmar, Clark, Taylor, Link-Belt Power Generation & Industrial Applications Cummins, Perkins, Onan, Kohler, generators, light towers, air compressors, and airport ground support equipment Additional Brands & Applications Bobcat, Toro, Lincoln Electric, Sullivan-Palatek, Ramrod, Mitsubishi, Nissan, Dodge, GMC, and more BUILT TO OEM STANDARDS — OR BETTER We specialize in manufacturing copper-brass radiator cores and custom brass, steel, and aluminum radiator tanks designed for durability, heat transfer efficiency, and long service life. Whether you operate heavy equipment, trucks, generators, or specialty machinery, our team can repair, re-core, or custom-build radiator components to match your exact specifications. With on-site manufacturing and an extensive database of radiator designs, we ensure precise fitment, fast turnaround times, and reliable cooling performance across all applications. To learn more about our custom manufacturing for radiator cores click here for custom radiator tank manufacturing click here

The manufacturing time for a custom heavy-duty radiator core depends on the design complexity, materials, and specifications required. In most cases, turnaround time typically ranges from 3 to 5 business days. With over 35 years of on-site radiator manufacturing experience, Diamond Radiator maintains a database of thousands of radiator drawings across hundreds of makes and models. This extensive library allows us to streamline production, reduce lead times, and deliver faster turnaround on custom radiator core builds. For urgent projects, our team can often expedite production to meet tight deadlines without compromising quality. For more info on custom heavy-duty radiators click here!

At Diamond Radiator, we repair all types of heavy-duty radiators, including those used in: Construction equipment (excavators, loaders, bulldozers) Heavy-duty trucks and fleet vehicles Generators and gensets Mining and forestry equipment Industrial machinery We service radiators of all sizes, materials, and configurations.

Common signs include: Engine or equipment overheating Coolant leaks Corrosion or rust buildup Reduced cooling efficiency Contaminated or discolored coolant If you notice any of these issues, your radiator may require repair, cleaning, or re-coring.

Repair times vary depending on the condition and size of the radiator, but most jobs are completed within a few days. Expedited service may be available for urgent equipment downtime.

Regular maintenance such as cleaning, coolant checks, and inspections can help prevent overheating and extend radiator life. Addressing small issues early can avoid costly repairs or equipment downtime.