One Stop Solutions 2458E Radiator

Radiator for multi-fit cooling applications

This OSC Premium New Automotive Radiator is built to OES form and function for a direct-fit cooling system replacement. It uses premium-grade aluminum construction with a plastic tank design and is engineered for multi-fit applications without compromising fit or appearance. Part number 2458E is a practical choice for Chevrolet Trailblazer, GMC Envoy, and related applications listed below.

Key features

• OES-style radiator design for factory-like form and function.
• Premium aluminum core construction with plastic tanks.
• Cadmium-plated tubes help resist premature failure.
• Die-cut gasket design helps maintain a leak-resistant seal.
• Transmission oil cooler is included for supported applications.
• Individually pressure tested during production for added quality control.

Detailed description

Part number 2458E is an OSC radiator engineered for vehicles that require an economy-version cooling assembly with a downflow layout. The core measures 18 1/16 inches high, 26 5/16 inches wide, and 1 inch thick, with aluminum transmission cooler construction and a single-row core design. It also includes a transmission oil cooler and uses plated cooler components where originally equipped. This radiator is designed for Chevrolet Trailblazer, GMC Envoy, and Saab 9-7x fitments, along with other listed applications, while maintaining the original cooler design requirements where applicable.

OSC builds this radiator with fitted components torqued to factory specifications and tests the unit during production to verify the core and cooler assemblies. The result is a replacement radiator intended to match the original cooling layout while addressing common wear points in higher-mileage vehicles. Part number 2458E is also cross-referenced to Monroe Shocks & Struts 172286 for the same application.

What this radiator helps address

• Overheating caused by a worn or leaking radiator.
• Coolant loss from cracked tanks or failed seals.
• Reduced cooling efficiency from aged core materials.
• Transmission heat management issues in equipped applications.
• Fitment problems from a radiator that does not match the original layout.

Installation notes and tips

Verify the vehicle’s cooling configuration against the listed fitment before installation, especially the economy-version note. Confirm inlet and outlet sizes, cooler style, and downflow layout before removing the original unit. Reuse or replace related cooling system components as needed during service, and inspect hoses, clamps, and mounting points for wear before final assembly.

Quality assurance

OSC states that each radiator is pressure tested during production and built to OES form and function. The design uses premium materials, plated tubes, and factory-style component placement to support consistent fit and cooling performance. Part number 2458E is engineered for the listed applications and is manufactured to meet original cooler design requirements where originally equipped.