Performance Radiator for Infiniti QX56 (2004-2010) 5.6L Automatic

High-Efficiency 3-Row All-Aluminum Performance Radiator for 2004-2010 Infiniti QX56

Engineered Cooling Upgrade: Direct-fit replacement engineered to eliminate factory plastic tank failure points and maximize thermal heat dissipation during heavy towing or sustained high-load driving.

The Stock QX56 Thermal and Structural Vulnerability

Factory JA60 cooling systems rely on composite plastic end-tanks crimped onto a thin single-row aluminum core. Under cyclical thermal loading, vibration, and elevated cooling system pressures, these crimp seals degrade, leading to structural fatigue, end-tank fractures, and catastrophic coolant loss. Furthermore, the OEM core volume lacks sufficient heat transfer capacity when towing near the VK56DE platform's maximum gross weight ratings.

The Engineering Solution

This heavy-duty unit utilizes a 100% TIG-welded, all-aluminum construction with a vacuum-brazed 3-row downflow core to eliminate epoxy joints and weak plastic transitions. Operating with 3/8-inch tube spacing and high-density 14-16 fins per inch, it increases thermal transfer efficiency by 35-45% over OEM specifications. It features a built-in M12x1.0 transmission oil cooler to maintain transmission fluid viscosity under heavy loads and is 100% leak tested.

Technical Specifications

Compatibility

• 2004-2010 Infiniti QX56 5.6L V8 GAS (Automatic Transmission)
• Note: Does not fit 2011-later QX56 or QX80 models.

The Infiniti Heavy-Duty Towing Standard

Built to handle extreme towing duty cycles and severe ambient temperatures, this all-aluminum radiator prevents heat soak, keeps cylinder head temperatures stable, and protects your automatic transmission from thermal breakdown.