Koyorad A2866 Radiator

Koyorad A2866 Radiator for Express and Savana

The Koyorad A2866 radiator is an OE-equivalent replacement built for select Chevrolet Express and GMC Savana vans. It combines an aluminum core with plastic tanks and integrated engine and transmission oil cooling to support factory-style thermal management.

Compatible with 2004-2008 Chevrolet Express 2500 and Express 3500, plus 2004-2008 GMC Savana 2500 and Savana 3500, this radiator is a direct-fit cooling solution for van applications that need dependable heat transfer and fluid cooling. The Koyorad A2866 is also listed for 2004 Chevrolet Express models with quick disconnect connections.

Key Features

• OE-equivalent radiator replacement from Koyorad
• Aluminum core with a single-row design
• Plastic tank construction
• Integrated engine oil cooler included
• Integrated transmission oil cooler included
• Core dimensions: 34 in. height, 18.5 in. width, 1.0625 in. thickness
• Inlet diameter: 1.3125 in.; outlet diameter: 1.5625 in.
• Engine oil cooler diameter: 1.75 in., 5-plate design
• Transmission oil cooler diameter: 1.625 in.

Product Details

Koyorad Radiator products are built with the technical experience needed to produce accurate OE-style replacements. The A2866 radiator follows that approach with an aluminum core for efficient heat exchange, plastic end tanks, and built-in cooling circuits for both engine oil and transmission fluid. That makes it a practical replacement for Chevrolet Express and GMC Savana vans where the radiator also serves as part of the vehicle’s fluid cooling system. This part number, Koyorad A2866, is specified for multiple 2004-2008 van applications and should be matched to the vehicle’s connection style and cooling equipment before installation.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Radiator Can Address

• Coolant leaks from a worn or damaged radiator
• Reduced cooling performance from a clogged or aging core
• Transmission fluid temperature concerns tied to a failing cooler circuit
• Engine oil cooling issues caused by a damaged internal cooler
• Fitment problems when replacing an OE-style radiator on Express or Savana vans

Installation Notes and Tips

Verify radiator connection style, cooler line routing, and vehicle configuration before installation. The 2004 Chevrolet Express 2500 and 3500 listings note quick disconnect fittings, while 2005-2008 Chevrolet Express 2500 applications are listed for the 3500 model; confirm the exact cooling setup on the vehicle before ordering. Inspect hoses, clamps, and cooler lines for wear during replacement, and flush the cooling system if contamination or debris is present.

Quality Assurance

Koyorad manufactures OE-equivalent radiators using application-specific engineering and replacement-focused construction. The A2866 is built to match the cooling requirements of select Chevrolet Express and GMC Savana vans, with integrated oil cooling features included as specified.