TYC 1521 Radiator

TYC Radiator 1521 for Chevrolet and GMC Trucks

TYC Radiator 1521 is a direct-fit radiator assembly for select Chevrolet and GMC heavy-duty trucks and Suburban models. It combines aluminum core construction with integrated engine and transmission oil cooler provisions for service on demanding cooling systems.

Key Features

• Aluminum core construction for efficient heat transfer
• Crossflow design with 1-row core layout
• Engine oil cooler included with plate-style cooler design
• Transmission oil cooler included with plate-style cooler design
• Hose clamp inlet and outlet connections
• Core dimensions: 19.41 in. height, 34.09 in. length, 2.2 in. thickness
• TYC Radiator 1521 cross-references Spectra Premium CU1521 and Partslink GM3010264 for the same application

Product Details

This TYC radiator is built for 1994-2000 Chevrolet C2500, C3500, K2500, and K3500 models, plus 1994-1999 Chevrolet C2500 Suburban and K2500 Suburban applications. It also fits 1994-2000 GMC C2500, C3500, K2500, and K3500 trucks, along with 1994-1999 GMC C2500 Suburban and K2500 Suburban models, all with a raised filler neck. The radiator uses a crossflow layout, aluminum core material, and integrated plate oil coolers to manage both engine and transmission fluid temperatures in one assembly. TYC Radiator 1521 is a practical OE-style replacement for Chevrolet C2500, GMC K3500, and related heavy-duty cooling systems.

Common Cooling System Issues Addressed

• Cracked or leaking radiator tanks
• Restricted coolant flow from an aging core
• Transmission fluid temperature control concerns tied to a worn cooler circuit
• Engine oil temperature management issues in radiator-equipped cooling systems
• Corrosion or fatigue in an original radiator assembly

Installation Notes and Tips

Verify raised filler neck configuration before ordering. Confirm inlet and outlet hose sizes, cooler line adapter connections, and overall core dimensions against the original radiator. Inspect hoses, clamps, and cooler lines during installation to reduce repeat cooling-system service. This part is listed for N/A position applications.

Quality Assurance

TYC supplies replacement cooling components built to match the listed vehicle applications and OE-style fitment requirements. Part number 1521 is cataloged for direct replacement use on the specified Chevrolet and GMC trucks and Suburban models.