Performance Radiator for Chevrolet Silverado 2500HD 3500HD (2011-2019) 6.0L
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High-Capacity Performance Radiator for 2011-2019 Chevrolet Silverado 6.0L
Direct Replacement Upgraded Radiator: Replaces the restrictive, failure-prone OEM plastic-tank radiator with a full aluminum core to drastically lower coolant temperatures during heavy towing.
The Stock Silverado Heat Soak Problem
The factory cooling system on the GMT900 and K2XX HD platforms struggles when subjected to maximum payload or steep grade towing. The OEM radiator utilizes crimped plastic end tanks that become brittle from continuous thermal cycling and eventually crack or leak at the seams. Additionally, the factory tube-and-fin density offers limited heat dissipation surface area, leading to severe heat soak, rising transmission fluid temperatures, and potential premature engine failure when the L96 6.0L engine is under sustained heavy loads.
The Engineering Solution
This full aluminum radiator utilizes an aerospace-grade Al-Mg alloy construction, eliminating the weak plastic tanks entirely. Featuring a massive 34 1/16'' W x 23 1/8'' H core, it incorporates a high-density tube and fin design that dramatically increases the surface area. This results in a 30% to 45% increase in cooling efficiency over the stock unit. TIG-welded for superior burst strength, it holds a significantly higher coolant capacity to resist temperature spikes. Integrated automatic transmission and engine oil coolers ensure all critical fluid temperatures are managed efficiently, keeping your rig out of the red during extreme conditions.
Technical Specifications
| Fitment | 2011-2019 Chevrolet Silverado 2500HD / 3500HD |
| Engine / Chassis | L96 6.0L V8 / GMT900 & K2XX HD |
| Stock Output | 360 hp / 380 lb-ft (Approx) |
| Part Number | CU13301, 23447657, GM3010566 |
Compatibility
- For 2011 - 2019 Chevrolet Silverado 2500 HD 6.0L Only
- For 2011 - 2019 Chevrolet Silverado 3500 HD 6.0L Only
- For 2015 - 2018 Chevrolet Silverado 3500 6.0L Only
The Chevrolet Heavy-Duty Standard
The Silverado HD platform demands uncompromised reliability for heavy towing and hauling. Upgrading your cooling system ensures your truck handles the heaviest payloads and steepest grades without risking catastrophic thermal failure or downtime.
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