Denso 221-9015 Radiator

Overview of the Denso 221-9015 Radiator

The Denso 221-9015 radiator is engineered for reliable cooling performance in select Buick, Chevrolet, Oldsmobile, Pontiac, and Saturn vehicles. Designed to meet specific fitment requirements, this radiator supports models such as the Aztek, Montana, Relay, Rendezvous, Silhouette, Terraza, and Uplander.

• Core Height: 14.818 inches
• Core Thickness: 0.629 inches
• Core Width: 30.511 inches
• Transmission Oil Cooler Included
• Inlet Diameter: 1.338 inches
• Outlet Diameter: 1.338 inches

Technical Specifications and Features

The Denso 221-9015 radiator features a core measuring 14.818 inches in height, 30.511 inches in width, and 0.629 inches in thickness, providing efficient heat dissipation for engine cooling. It includes an integrated transmission oil cooler, which helps maintain optimal transmission fluid temperature. Both the inlet and outlet diameters are 1.338 inches, ensuring compatibility with the vehicle’s cooling system hoses. This radiator is designed to meet the exact specifications required for proper fitment and function in the listed vehicle models.

Compatible Vehicles and Applications

This radiator is compatible with a range of General Motors vehicles, including Buick Aztek, Chevrolet Montana, Relay, Rendezvous, Silhouette, Terraza, and Uplander models. The Denso 221-9015 radiator is suitable for owners seeking a direct replacement radiator that maintains factory cooling system performance.

• Overheating issues due to radiator core damage or clogging
• Transmission fluid overheating caused by a faulty transmission oil cooler
• Leaks or cracks in the radiator core or tanks
• Reduced cooling efficiency from corrosion or buildup
• Replacement during engine cooling system upgrades or repairs

Installation Notes and Tips

When installing the Denso 221-9015 radiator, ensure all hose connections match the 1.338-inch inlet and outlet diameters for a secure fit. Properly drain and dispose of old coolant and transmission fluid before removal. Inspect and replace any worn hoses or clamps to prevent leaks. Bleed the cooling system after installation to remove air pockets and verify there are no leaks. Follow vehicle-specific service manual instructions for torque specifications and installation procedures.

Quality Assurance and Warranty

Denso radiators are manufactured to meet OEM standards for durability and performance. The 221-9015 radiator undergoes rigorous quality control to ensure reliable operation under normal driving conditions. This part typically includes a limited warranty covering defects in materials and workmanship. Refer to the warranty documentation for specific terms and coverage details.