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Learn More about New OSC Severe Duty Radiators

Written by USMWPRO on . Posted in corporate news, OSC - Heat Transfer Solutions, OSC Radiators, uncategorized.

OSC Heat Transfer Cooling Products Launches New Severe Duty Radiator Line – Introducing the 2370SD
OSC Heat Transfer Cooling Products is proud to announce the launch of its new Severe Duty Cooling Product Line, engineered to outperform both OE and traditional aftermarket solutions. Leading the release is the 2370SD Radiator, designed for superior durability, performance, and reliability.
Please see the complete list of new Severe Duty part numbers below. All items will be in stock and available by May 26, 2026. Orders can be placed now.

N.º de pieza DPI No. Years Make Model
2818SD 2818 2004-2008 Ford, Lincoln Expedition, F-150, F-250, Lobo, Mark LT, Navigator
2791SD 2791 2005-2020 Chevrolet, GMC Express, Savana
2423SD 2423 1999-2014 Cadillac, Chevrolet, GMC Escalade, Avalanche, Silverado, Tahoe, Sierra, Yukon
2370SD 2370 1999-2014 Cadillac, Chevrolet, GMC, Hummer Escalade, Avalanche, H2, Silverado, Sonora, Suburban, Tahoe, Sierra, Yukon
2334SD 2334 1999-2013 Cadillac, Chevrolet, GMC Escalade, Silverado, Sonora, Suburban, Tahoe, Sierra, Yukon
2173SD 2173 1998-2011 Ford, Mazda Explorer, Ranger, B3000, B4000, Mountaineer
13398SD 13398 2014-2020 Cadillac, Chevrolet, GMC Escalade, Silverado, Suburban, Tahoe, Sierra, Yukon
13200SD 13200 2011-2022 Dodge, Jeep Durango, Grand Cherokee
13129SD 13129 2009-2021 Dodge Ram
The 2370SD radiator is a direct-fit replacement designed for many 1999–2014 GM full-size trucks and SUVs, including Chevrolet Silverado/Avalanche, GMC Sierra, Cadillac Escalade, and Hummer H2.
Built from premium-grade aluminum, these Severe Heavy Duty radiators are constructed to meet OEM form, fit, and function while delivering enhanced cooling performance under the most demanding conditions. Each unit is individually pressure tested and features cadmium-plated tubes inside and out to help prevent premature failure and extend product life.
Unlike many aftermarket alternatives, OSC maintains OE integrity by utilizing stainless steel plate or copper and brass concentric coolers where originally equipped, never substituting with aluminum. A precision die-cut gasket ensures a secure, leak-free seal, while all necessary hardware, fittings, clamps, and bushings are included for a complete installation.
Beyond OE. Built for Better. The 2370SD is engineered to exceed expectations, delivering premium cooling performance without the premium price.
Key Performance Advantages:

  • More Tubes, More Cooling
  • Increased tube count (43 vs. 39 OE) improves coolant flow and heat transfer for better engine temperature control
  • Smarter Fin Design
  • Higher fin density (44 fins per inch vs. 40 OE) maximizes airflow and heat dissipation
  • Bigger Tubes for Greater Strength
  • Larger and thicker tubes (26mm core / 2mm tube vs. 24mm / 1.8mm OE) increase durability and cooling efficiency
  • Stronger Seal Life
  • Steel crimp strips provide a tighter, more consistent seal for leak-free performance, even in extreme conditions
  • Complete Installation Ready
  • Includes all essential hardware (Radiator cap included where applicable)
Steel-Strength Transmission Cooling
OSC Severe Duty Radiators feature transmission coolers with a robust 7 stainless steel plate design, compared to 6 aluminum plates in OE and 5 in typical aftermarket units, enhancing both thermal efficiency and long-term durability. The OSC 2370SD Radiator sets a new standard in cooling technology, stronger, smarter, and ready for the road ahead. More part numbers to come soon.
About OSC Heat Transfer Cooling Products OSC is a trusted leader in automotive heat transfer solutions, delivering high-quality radiators, condensers, and cooling components engineered to meet or exceed OEM standards.

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