Performance Radiator for Chevrolet Colorado (2009-2012) 5.3L Automatic

High-Efficiency All-Aluminum 3-Row Performance Radiator for 2009-2012 Chevrolet Colorado

What it Does: Replaces the failure-prone factory cooling assembly with an all-aluminum 3-row heat exchanger to prevent thermal runaway and manage high engine coolant temperatures under heavy load.

The Stock Colorado Thermal Bottleneck

Factory radiators in the V8-equipped GMT355 rely on slim single-row cores paired with crimped plastic end tanks. Over repeated thermal expansion cycles, these composite tanks embrittle and crack along the header seams. Furthermore, packing a 5.3L V8 into the compact Colorado engine bay severely restricts airflow, leading to rapid heat soak, elevated automatic transmission temperatures, and eventual overheating during steep grades or towing.

The Engineering Solution

Engineered for maximum thermal dissipation, this performance downflow unit features 100% aircraft-grade aluminum construction with precision TIG-welded tanks that completely eradicate mechanical crimp-seal failures. The robust 3-row core (23.2" W x 18.7" H) significantly increases cooling surface area and fluid capacity over OEM standards. A built-in M14 x 1.5 internal transmission oil cooler maintains optimal automatic transmission fluid viscosity under severe operating conditions.

Technical Specifications

Compatibility

• Vehicles: 2009-2012 Chevrolet Colorado (5.3L V8 Automatic Models Only)
• OEM Part Numbers: 25964053, 25964054, 25827383, 15828003, 15828004
• Interchange Numbers: DPI 2855, CU2855, RAD2855, Q2855, CC2855, MC2855, HU3010101, HU3010102
• Fitment Note: Direct bolt-on. Will not fit 2.9L 4-cylinder or 3.7L 5-cylinder engine configurations.

The Chevrolet Truck Caliber

Built to withstand extreme duty-cycle demands, this all-aluminum cooling system provides the structural durability and heat-shedding capacity required for heavy hauling, trailer towing, and harsh off-road environments.