One Stop Solutions 2423 Radiator

OE-Style Radiator for GM Trucks and SUVs

This OSC Premium radiator is built for direct replacement service in a wide range of Chevrolet, GMC, Cadillac, and Hummer applications. Part number 2423 is engineered around OES form and function, with a crossflow design, plastic tanks, and a premium aluminum core for dependable cooling performance.

Key Features

• Crossflow radiator design with a 34-inch core width and 1-1/4-inch core thickness
• Plastic tank construction with premium-grade aluminum core materials
• Transmission oil cooler included; engine oil cooler not included
• Die-cut gasket design for leak resistance
• Individually pressure tested during production
• Factory-style fitment with necessary fittings or hardware included
• Enhanced cooling design for high-mileage vehicles, including added fin density and larger transmission cooler capacity where applicable

Detailed Description

OSC part number 2423 is a replacement radiator designed for vehicles that use a 34-inch-wide, 1-1/4-inch-thick enhanced cooling package without an engine oil cooler. It uses premium tubes, fins, headers, and tanks to match original equipment dimensions while improving durability and heat management. The integrated plated transmission oil cooler supports automatic transmission cooling, and the unit is built and tested to factory specifications for fit and function.

This radiator is listed for applications such as the Chevrolet Silverado 1500, Chevrolet Tahoe, GMC Yukon, Cadillac Escalade, and related GM full-size trucks and SUVs. It is also cross-referenced to APDI 8012370, Dorman - HELP 56009, Koyorad A2370, and Spectra Premium CU2370 for the same application.

What This Radiator Helps Address

• Overheating caused by a restricted, leaking, or aging radiator
• Transmission temperature concerns tied to a failing cooler circuit
• Coolant loss from cracked tanks, worn seals, or core deterioration
• Reduced cooling efficiency in high-mileage GM trucks and SUVs
• Fitment issues from non-OE-style replacement parts

Installation Notes and Fitment

Compatible with 1999-2014 Chevrolet Silverado 1500, 1999-2013 Chevrolet Silverado 2500, 2001-2010 Chevrolet Silverado 2500 HD, 2001-2006 Chevrolet Silverado 3500, 2007-2013 Chevrolet Silverado 3500 HD, 2000-2014 Chevrolet Tahoe, 2000-2014 GMC Yukon, 2000-2013 GMC Yukon XL 2500, 2000-2012 GMC Yukon XL 1500, 2005-2013 GMC Sierra 1500, 1999-2002 GMC Sierra 1500, 2007-2009 GMC Sierra, 2011-2013 GMC Sierra, 2007-2013 Chevrolet Avalanche, 2002-2006 Chevrolet Avalanche 1500, 2007-2014 Cadillac Escalade, 2002-2005 Cadillac Escalade, 2003-2008 Cadillac Escalade ESV, 2002-2004 Cadillac Escalade EXT, 2003-2009 Hummer H2, 2000-2006 Chevrolet Suburban 2500, and 2000-2014 Chevrolet Suburban 1500, all in N/A position with the notes shown in the fitment data.

Verify radiator width, thickness, inlet and outlet sizes, and cooler configuration before installation. This unit is specified for vehicles without an engine oil cooler and uses a crossflow layout, so matching the original cooling package is important for proper fit.

Quality Assurance

OSC states that each radiator is pressure tested during production, with cooler circuits checked before tank installation and the completed assembly tested again. The design uses cadmium-plated tubes and factory-style component fitment to support long-term service life and consistent cooling performance.