CU2370 Aluminum Radiator for Chevy Silverado and GMC Sierra - OE Fit

In this review of the CU2370 aluminum radiator, the bottom line is simple: it is a practical OE-fit replacement for owners who need a durable, efficient cooling solution for select Chevy, GMC, Cadillac and Hummer V8 models. The reviewer found the radiator best for drivers who tow, carry heavy loads, or live in hot climates because the welded aluminum construction and high-density fins deliver strong heat dissipation and long-term corrosion resistance. Installation is straightforward for automatic transmission vehicles and the unit is backed by a one-year unlimited mileage warranty.

Key Features

• Universal compatibility: Covers a wide range of Silverado, Sierra, Tahoe, Suburban, Yukon, Escalade and H2 model years so many owners can source a direct replacement without guessing.
• OE fit dimensions: The 34 in core height, 17.5 in core width and 1.26 in (32mm) core thickness match OEM proportions for a drop-in installation with no drilling or cutting.
• Aluminum construction: Welded aluminum tanks and core resist corrosion better than many plastic OEM radiators and reduce the chance of tank failure over time.
• High-density fin design: Improves heat transfer so the engine stays cooler under towing, heavy loads or extended idling in warm conditions.
• Transmission-ready: Designed for automatic transmission vehicles to ensure compatibility with cooling and fluid routing in those configurations.
• Warranty and testing: Each radiator is leak tested before shipment and includes a one-year unlimited mileage warranty for buyer reassurance.

Who It's For

This radiator is aimed at owners of Chevy Silverado 1500/2500/3500, GMC Sierra, Suburban, Tahoe, Yukon, Cadillac Escalade and Hummer H2 models listed in the fitment who need a reliable OEM-style replacement. It is particularly well suited for drivers who tow frequently or operate in warm climates and want the durability of welded aluminum and improved heat dissipation.

It is not the best choice for vehicles outside the specified model years or for those who require a custom performance radiator with larger cores or additional cooling features beyond the supplied 32mm core thickness and standard inlet/outlet sizes.

Pros & Cons

Pros

• Direct OEM-style fit for many GM V8 models simplifies installation and eliminates modification needs.
• Welded aluminum tanks reduce leak risk compared with plastic tank radiators and improve durability.
• High-density fins and a 32mm core thickness offer effective heat dissipation under heavy load.
• One-year unlimited mileage warranty and pre-shipment leak testing provide added confidence.

Cons

• Fitment is specific to listed years and engines, so buyers must confirm compatibility before purchase.
• Does not include special performance upgrades such as larger cores or integrated fans beyond the standard replacement design.

Specifications

Core Height	34 in
Core Width	17.5 in
Core Thickness	32 mm (1.26 in)
Inlet Diameter	1-5/16 in
Outlet Diameter	1-9/16 in
Transmission	Designed for automatic transmission vehicles
Warranty	1 year unlimited mileage

Our Verdict

The CU2370 aluminum radiator is a sensible, value-focused replacement for the specific Chevy, GMC, Cadillac and Hummer models listed; it combines welded aluminum durability, a high-density fin core and OE-fit dimensions to deliver reliable cooling for towing and heavy use. Buyers who confirm fitment will find it a durable, cost-effective alternative to plastic-tank radiators and a good choice for maintaining engine temperature under demanding conditions.

Frequently Asked Questions

Will this radiator fit my vehicle?
Confirm fitment against the listed model years and engine sizes and use the vehicle fitment tool offered by the store before purchase to ensure compatibility.

Does it require modification to install?
No drilling or cutting is required for compatible automatic transmission vehicles; it is intended as a direct replacement.

Is the radiator covered by warranty?
Yes, the radiator includes a one-year unlimited mileage warranty and each unit is leak tested before shipment.