autoexact Radiator for Chevy Silverado GMC Sierra Cadillac Escalade Hummer H2 CU2423 — All-Aluminum Direct-Fit with Multi-Louvered

Autoexact CU2423 is a direct-fit, all-aluminum replacement radiator engineered to restore reliable cooling for select Chevy, GMC, Cadillac, and Hummer trucks and SUVs from 1999–2016.

This radiator is built to match OEM mounting points and hose connections while improving heat transfer and long-term durability. Designed with flat-flow B-type tubes, multi-louvered fins, and reinforced extrusion tanks, the CU2423 gives you a durable, leak-tested cooling core that slips into the factory location without modification. It’s an aftermarket upgrade that focuses on corrosion resistance, efficient airflow, and straightforward installation for fleet vehicles and everyday drivers alike.

Will this radiator fit my vehicle?

The CU2423 is manufactured to fit a broad range of GM vehicles; check year, engine, and model fitment before ordering. It supports many Chevy Silverado, Suburban, Tahoe, Avalanche models, GMC Sierra and Yukon variants, Cadillac Escalade configurations, and Hummer H2 across the published years.

• Chevy: Silverado 1500/2500/3500, Suburban, Tahoe, Avalanche (specific years listed).
• GMC: Sierra 1500/2500/3500, Yukon and Yukon XL models by year.
• Cadillac Escalade/ESV/EXT and Hummer H2 compatibility for listed model years.
• Always verify engine size and original radiator features (TOC vs. EOC) before purchase.

How does this radiator improve cooling compared to older units?

Performance gains come from the CU2423’s optimized core geometry and materials. Multi-louvered fin design increases surface area for heat exchange while flat-flow tubes and controlled airflow channels speed heat transfer away from coolant.

• All-aluminum construction improves thermal conductivity over mixed-material cores.
• Anti-corrosion coatings extend service life in varied climates.
• Thermal expansion cuts reduce stress from repeated temperature cycles.
• Pressure- and leak-tested to reduce installation failures and early leaks.

Is installation difficult and will it require modifications?

The CU2423 is designed to meet OEM fitment and connect to existing hoses, shrouds, and cooling lines without cutting or custom fabrication. Most installations follow the same mounting and hose routings as the original radiator for a near direct-swap replacement.

• Factory-style inlet/outlet locations match original equipment.
• Fits existing fan shroud and transmission cooler lines where applicable.
• No trimming or adapter hoses typically required for listed models.
• Professional or experienced DIY installation recommended for proper bleeding and torque specs.

What safeguards and warranty support come with the radiator?

Autoexact builds this radiator with reinforced headers, precision welds, and premium sealing to prevent leaks and resist corrosion. Every unit is subjected to pressure and leak testing before shipment, and the product is backed by a 1-year warranty and responsive customer support.

• Deep-extrusion header tanks and precision welds for leak resistance.
• Corrosion-resistant coatings to protect core longevity.
• 1-year warranty and seller support for fitment or defect questions.
• Tested units to reduce out-of-box failures.

Who is this for: The Autoexact CU2423 radiator is intended for owners, mechanics, and shops that need a dependable, OEM-fit replacement for GM full-size trucks and SUVs listed in the compatibility range. It suits drivers who want improved thermal performance, a corrosion-resistant aluminum core, and a drop-in radiator that minimizes downtime and installation headaches.