One Stop Solutions 2343 Radiator

Radiator for Buick, Chevrolet Cooling Repair

This One Stop Solutions radiator is built for OE-style fit and function in select Buick and Chevrolet applications. Part number 2343 is engineered as a direct replacement for vehicles such as the Buick Century, Buick Regal, Chevrolet Impala, and Chevrolet Monte Carlo with the listed cooling-system configurations.

Key Features

• Premium aluminum core construction with plastic tanks
• Crossflow design with a single-row core
• Transmission oil cooler included with plated cooler type
• Die-cut gasket design to help maintain a leak-resistant seal
• Individually pressure tested during production
• Factory-style fit, form, and function for easier replacement
• Enhanced cooling design for higher-mileage vehicles

Detailed Product Overview

One Stop Solutions part number 2343 is a replacement radiator designed around OE dimensions and cooling performance. It uses premium-grade aluminum construction with cadmium-plated tubes inside and out, plastic tanks, and a crossflow layout to match the original cooling system architecture. The radiator includes a plated transmission oil cooler and is built to the specified header, inlet, and outlet dimensions for a direct-fit installation.

This radiator is a strong match for drivers searching for a radiator for 2001-2005 Buick Century, a radiator for 2000-2004 Buick Regal, or a radiator for 2000-2003 Chevrolet Impala and 2000-2003 Chevrolet Monte Carlo. It also covers the 2000 Buick Century with metric transmission oil cooler fittings. Part number 2343 is cross-referenced with Spectra Premium CU2343 for the same application.

What This Radiator Helps Address

• Overheating caused by a worn or leaking radiator
• Transmission fluid temperature control concerns tied to the integrated cooler
• Coolant loss from cracked tanks or failed seals
• Reduced cooling efficiency in high-mileage Buick and Chevrolet vehicles
• Fitment issues from non-OE-style replacement parts

Installation Notes and Fitment

Fits 2001-2005 Buick Century, N/A. Fits 2000-2004 Buick Regal, N/A. Fits 2000-2003 Chevrolet Impala, N/A, 5/8" CORE. Fits 2000-2003 Chevrolet Impala, N/A, w/METRIC TOC FITTINGS. Fits 2000-2003 Chevrolet Monte Carlo, N/A. Fits 2000 Buick Century, N/A, w/METRIC TOC FITTINGS.

Verify inlet and outlet diameter, core size, and transmission cooler fitting style before installation. This radiator does not include a cap. All required fittings or hardware are not stated as included in the source data, so confirm your existing mounting and connection points match the listed specifications.

Quality Assurance

OSC radiators are produced with engineering updates aimed at improving durability and cooling life cycle. Each unit is pressure tested during production, with cooler testing performed before tank installation, core testing before assembly, and a final test after assembly. The design also incorporates factory-spec component placement and torque procedures to support consistent OE-style performance.