TYC 2691 Radiator

TYC Radiator 2691 for Nissan and Infiniti

The TYC Radiator 2691 is a direct-fit cooling system replacement for select Nissan Armada, Nissan Titan, Infiniti QX56, and Nissan Pathfinder Armada applications. Built with an aluminum core and a downflow design, it includes a concentric transmission oil cooler for vehicles equipped with automatic transmission cooling through the radiator.

Key Features

• Aluminum core construction for efficient heat transfer
• Downflow radiator design
• Transmission oil cooler included
• Concentric oil cooler type
• Hose clamp inlet and outlet connections
• 1.38 in inlet and outlet diameters
• Single-row core layout
• TYC Radiator 2691 cross-references OE and aftermarket numbers for the same application

Product Details

TYC Radiator 2691 is engineered around the listed core dimensions, tube layout, and header sizing to match the cooling package used in select Nissan and Infiniti trucks and SUVs. The aluminum core, 62 total tube count, and fin design support consistent coolant flow and heat dissipation, while the integrated concentric transmission oil cooler adds transmission fluid cooling through the radiator assembly. This part is a practical replacement choice for 2005-2015 Nissan Armada, 2004-2015 Nissan Titan, 2004-2010 Infiniti QX56, and 2004 Nissan Pathfinder Armada applications. This part cross-references Nissan 21460-ZZ90A and Spectra Premium CU2691 for the same application.

Common Problems This Radiator Addresses

• Coolant leaks from a damaged or corroded radiator
• Overheating caused by restricted coolant flow
• Transmission temperature concerns related to a failing radiator cooler
• Cracked hose connections or worn inlet and outlet fittings
• Poor heat rejection from an aging factory radiator

Installation Notes and Tips

Verify radiator dimensions, hose connection style, and transmission cooler routing before installation. This radiator uses hose clamp inlet and outlet connections with 1.38 in diameters, so matching hoses and clamps should be inspected during replacement. Flush the cooling system, check for debris in the condenser and fan area, and confirm proper coolant fill and bleed procedures after installation. For fitment, use the vehicle-specific listing: Fits 2005-2015 Nissan Armada, N/A; Fits 2004-2015 Nissan TITAN, N/A; Fits 2004-2010 INFINITI QX56, N/A; Fits 2004 Nissan Pathfinder Armada, Primary.

Quality Assurance

TYC manufactures replacement cooling components with application-specific dimensions and integrated cooler configurations to match the listed vehicle fitment. TYC Radiator 2691 is built for the stated Nissan and Infiniti applications and is identified by part number 2691 for accurate ordering and service reference.