TYC 2946 Radiator - Front

TYC 2946 Radiator for Silverado and Sierra

TYC 2946 is a direct-fit radiator built for select Chevrolet Silverado 1500 and GMC Sierra 1500 applications. It combines an aluminum core with plastic tanks and an integrated plate-style transmission oil cooler to support engine cooling and automatic transmission fluid temperature control in one assembly.

Key Features

• Aluminum core with plastic tanks for OE-style construction
• Crossflow design with 1-row core layout
• Core dimensions: 18.43 in. height, 34.06 in. length, 0.92 in. thickness
• Inlet diameter: 1.30 in. with hose clamp fitting
• Outlet diameter: 1.58 in. with hose clamp fitting
• Integrated plate transmission oil cooler with quick-connect fittings
• TOC inlet and outlet diameter: 0.49 in.
• Tube width x height: 0.923 x 0.078

Product Details

TYC Radiator part number 2946 is engineered for vehicles that use a crossflow cooling layout and an integrated transmission oil cooler. The aluminum core supports heat transfer, while the plastic tank design follows common OE radiator construction. This TYC 2946 radiator is a practical replacement choice for drivers servicing cooling system leaks, overheating concerns, or transmission cooler issues on Silverado 1500 and Sierra 1500 models.

This part cross-references ACDelco 21651 and Spectra Premium CU2946 for the same application.

Vehicle Fitment

• Fits 2013 Chevrolet Silverado 1500, Primary.
• Fits 2008-2012 Chevrolet Silverado 1500, N/A.
• Fits 2005-2007 Chevrolet Silverado 1500, N/A, w/ Electric Fan.
• Fits 2007 Chevrolet Silverado 1500 Classic, N/A, w/ Electric Fan.
• Fits 2006-2013 GMC Sierra 1500, N/A, w/ Electric Fan.
• Fits 2007 GMC Sierra 1500 Classic, N/A, w/ Electric Fan.
• Fits 2005 GMC Sierra 1500, Front, w/o TOC.

Common Repair Uses

• Replacing a leaking or cracked radiator tank
• Restoring coolant flow after internal core damage
• Addressing transmission cooler seepage at the integrated cooler
• Correcting overheating caused by restricted radiator passages
• Servicing a worn radiator on Silverado 1500 or Sierra 1500 cooling systems

Installation Notes

Verify inlet and outlet sizes, transmission cooler connection style, and vehicle configuration before installation. This radiator uses hose clamp fittings for the main coolant connections and quick-connect fittings for the transmission oil cooler lines. Confirm fitment details for your Silverado 1500 or Sierra 1500, especially electric fan and TOC-related applications, before replacing the original unit.

Quality Assurance

TYC Radiator 2946 is built to match the listed dimensions, connection styles, and cooling layout for the specified applications. The part number 2946 is also listed under several OE and aftermarket cross-references, supporting application matching during radiator replacement.