Universal Air RA2948C Radiator

Crossflow Radiator for GM HD Applications

Universal Air RA2948C is a crossflow radiator built for specific Chevrolet and GMC heavy-duty truck and SUV applications. It is listed for vehicles without Allison transmission, making fitment verification important before ordering.

Key Features

• Crossflow radiator design for targeted cooling-system replacement
• Fits 2003-2006 Chevrolet Silverado 2500 HD, N/A, without Allison Transmission; Crossflow Radiator
• Fits 2003-2005 Chevrolet Silverado 3500, N/A, without Allison Transmission; Crossflow Radiator
• Fits 2003-2004 Chevrolet Suburban 2500, N/A, without Allison Transmission; Crossflow Radiator
• Fits 2005 Chevrolet Avalanche 2500, N/A, without Allison Transmission; Crossflow Radiator
• Fits 2003-2004 GMC Sierra 2500 HD, N/A, without Allison Transmission; Crossflow Radiator
• Fits 2005-2006 GMC Sierra 3500, N/A, without Allison Transmission; Crossflow Radiator
• Fits 2006 GMC Yukon XL 2500, N/A, without Allison Transmission; Crossflow Radiator

Product Details

Universal Air Crossflow Radiator RA2948C is intended for cooling-system service on select Chevrolet Silverado, Chevrolet Avalanche, Chevrolet Suburban, GMC Sierra, and GMC Yukon XL models. The crossflow layout supports direct radiator replacement in applications that require this configuration, and the fitment list is limited to vehicles without Allison transmission. This part number, RA2948C, should be matched to the vehicle’s cooling-system configuration before installation.

Common Cooling Issues Addressed

• Leaking or damaged radiator core
• Restricted coolant flow from an aging radiator
• Overheating caused by radiator failure
• Cooling-system service on a vehicle with the wrong radiator configuration
• Replacement needs on Silverado 2500 HD, Silverado 3500, Sierra 2500 HD, and Sierra 3500 models

Installation Notes

Confirm year, make, model, and transmission configuration before installation. This radiator is listed for vehicles without Allison transmission, so transmission matching is critical on GM HD trucks and SUVs. Verify hose routing, mounting points, and cooling-system layout against the original unit before final assembly. Part number RA2948C should be checked against the existing radiator and vehicle build data.

Quality Assurance

Universal Air RA2948C is cataloged as a Crossflow Radiator for defined GM applications, with fitment data provided for 2003-2006 model years. Use the vehicle-specific fitment list to confirm application accuracy before purchase.