Spectra Premium CU2423 Radiator with TOC, Without EOC — 34-1/16 inch Core, Compatible with Chevrolet Silverado, GMC and Cadillac

Engineered to replace the OE radiator in many Chevrolet Silverado, GMC, and Cadillac applications, the Spectra Premium CU2423 with TOC (without EOC) is built to handle demanding heat loads while delivering a straightforward fit. The 34-1/16 inch core is designed to maximize surface area for efficient heat exchange and steady engine temperatures even under high load conditions.

Smart design for reliable cooling

The radiator uses high-density, multi-louved fins to boost heat transfer without adding unnecessary weight. This arrangement helps maintain consistent performance across a range of operating environments, from hot city traffic to long highway drayage. The core is balanced to promote even flow and minimize hotspots, so you can drive with confidence in varied weather and road conditions.

• OE-grade fit and function: designed to bolt in without modifications for a clean, seamless replacement
• Enhanced cooling efficiency: optimized fins and channels for effective heat dissipation
• Easy installation: drop-in design plus an accessory pack to simplify mounting
• Proven performance: tested for reliability under extreme temperatures and conditions
• Fit verification: use the Confirmed Fit tool to ensure exact compatibility with your vehicle

The CU2423 features inlet and outlet headers sized at 18-7/16 x 3-1/8 inches, ensuring a match with many popular trucks and SUVs requiring a 34-1/16 inch core. The absence of EOC makes this a TOC-equipped option designed to balance performance with durability. No modifications are typically required for proper fit, giving you a straightforward replacement that aligns with your vehicle’s cooling system.

What you’ll experience in real-world use includes steady temperature readings under load, reduced risk of overheating in demanding conditions, and a quieter ride as cooling feels more consistent. This radiator is engineered to last, with robust construction and quality control designed to deliver long service life in tough climates and seasonal changes.

Two practical benefits in daily use are improved reliability during hot-weather commutes and consistent performance during sustained highway driving. For those who rely on their trucks for work or recreation, Spectra Premium aims to provide a confident, straightforward upgrade without the guesswork.