Denso 221-9401 Radiator

Overview of the Denso 221-9401 Radiator

The Denso 221-9401 radiator is engineered for reliable cooling performance in Chevrolet Express 1500, Express 2500, GMC Savana 1500, and Savana 2500 models. Designed with precise core dimensions and integrated transmission oil cooler, this radiator supports efficient engine temperature management.

• Core Height: 30.51 inches
• Core Width: 18.5 inches
• Core Thickness: 0.98 inches
• Transmission Oil Cooler Included
• Inlet Diameter: 1.313 inches
• Outlet Diameter: 1.54 inches

Detailed Radiator Specifications

This radiator features a core height of 30.51 inches and a width of 18.5 inches, providing ample surface area for heat dissipation. The core thickness of 0.98 inches balances cooling efficiency with compact design. Both inlet and outlet diameters are precisely sized at 1.313 inches and 1.54 inches respectively, ensuring proper coolant flow. The inclusion of a transmission oil cooler supports the cooling needs of the vehicle’s transmission system, helping maintain optimal operating temperatures under various driving conditions.

Compatible Vehicles and Applications

The Denso 221-9401 radiator is compatible with the following vehicles:

• Chevrolet Express 1500
• Chevrolet Express 2500
• GMC Savana 1500
• GMC Savana 2500

This radiator is designed specifically for these models to meet their cooling system requirements and maintain engine performance.

Common Issues Addressed by This Radiator

• Engine overheating due to inefficient heat dissipation
• Transmission overheating from lack of integrated cooling
• Coolant leaks from damaged or worn radiator cores
• Reduced engine performance caused by inadequate cooling
• Corrosion or clogging in original radiator components

Installation Notes and Tips

When installing the Denso 221-9401 radiator, ensure all hose connections match the specified inlet and outlet diameters for a secure fit. Verify that the transmission oil cooler lines are properly connected to maintain transmission cooling. It is recommended to flush the cooling system before installation to remove debris and contaminants. Use manufacturer-recommended coolant and follow torque specifications for mounting hardware to avoid leaks or damage.

Quality Assurance and Warranty

Denso radiators are manufactured to meet OEM standards for durability and performance. The 221-9401 radiator undergoes rigorous quality control to ensure reliable operation in Chevrolet Express and GMC Savana vehicles. Warranty coverage details should be confirmed with the supplier or manufacturer, typically including protection against defects in materials and workmanship.