Performance Radiator for Chevy Silverado GMC Sierra 1500 (2019-2025) 5.3L 6.2L

To feed your imagination, picture pulling a steep grade on a scorching afternoon with complete peace of mind, knowing your cooling system is dialed in.

Upgrade T-3003 Aluminum Radiator for Chevrolet Silverado & GMC Sierra 1500 (T1XX)

We are front-loading this description with exactly who this is for and the specific problem it solves. If you drive a modern GM half-ton with the V8, you know the EcoTec3 is a powerhouse, but the factory cooling system has a fatal flaw. The OEM radiator relies on plastic end tanks crimped to an aluminum core. After enough heat cycles, that plastic becomes brittle, the crimps expand, and you end up with a cracked housing leaking Dex-Cool all over your driveway.

This 100% TIG-welded, brazed T-3003 aluminum radiator is the permanent fix. By eliminating the plastic tanks entirely, you remove the weakest link in your cooling system. Because both the 5.3L and 6.2L share the same front-end architecture on trucks without the max tow package, this unit drops right into the factory location while offering a massive bump in thermal capacity.

Why You Need This Upgrade

• Zero Plastic Components: Fully TIG-welded aluminum construction means no more fragile crimps or cracking plastic tanks.
• Massive Thermal Efficiency: Improves cooling capacity by 30-45% compared to OEM, making it best for heavy payloads and hot climates.
• Premium Alloy Core: Manufactured from T-3003 aluminum for superior heat exchange and durability.
• Weight Reduction: The streamlined, single-row core design reduces front-end weight without sacrificing cooling area.
• Factory Integration: Features an integrated transmission oil cooler with correct M20x1.5 fittings for a seamless install.

Installation Notes

This unit is a direct replacement for non-enhanced towing package trucks. You will reuse your factory fan shroud, mounting points, and radiator hoses. Simply bleed the system correctly after installation to avoid air pockets. No custom fabrication or cutting required.

Replaces These OEM Applications & Part Numbers

• 2019-2025 Chevrolet Silverado 1500 LD LTD V8 6.2L (Without Enhanced Towing Package Radiator)
• 2019-2025 Chevrolet Silverado 1500 LD LTD V8 5.3L (Without Enhanced Towing Package Radiator)
• 2019-2025 GMC Sierra 1500 V8 6.2L (Without Enhanced Towing Package Radiator)
• 2019-2025 GMC Sierra 1500 V8 5.3L (Without Enhanced Towing Package Radiator)

(DOES NOT FIT 2.7L or 3.0L or 4.3L Engine)

23388801, 23388802, 84301712, 85575815, GM3010612, RAD3120, 13767, CU13767, DPI 13767, A13767, RAD13767, Q13767

Ditch the factory plastic before it leaves you stranded. Lock in your temperatures and keep your V8 running cool under pressure.