Denso 221-9003 Radiator

Overview of the Denso 221-9003 Radiator

The Denso 221-9003 radiator is engineered for reliable cooling performance in select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. Designed to meet specific fitment requirements, this radiator supports models such as the Cutlass Supreme, Grand Prix, Lumina, Monte Carlo, and Regal.

• Core Height: 15.0780 inches
• Core Thickness: 0.6290 inches
• Core Width: 30.5110 inches
• Transmission Oil Cooler Included
• Inlet Diameter: 1.3380 inches
• Outlet Diameter: 1.3380 inches

Technical Details and Specifications

This radiator features a core measuring 15.0780 inches in height, 30.5110 inches in width, and 0.6290 inches in thickness, providing efficient heat dissipation for engine cooling. The inclusion of a transmission oil cooler enhances the cooling system by maintaining optimal transmission fluid temperatures. Both the inlet and outlet diameters are 1.3380 inches, ensuring compatibility with the vehicle's existing cooling hoses. The Denso 221-9003 radiator is designed to integrate seamlessly with the cooling systems of Buick Cutlass Supreme, Chevrolet Lumina, Oldsmobile Regal, Pontiac Grand Prix, and Monte Carlo models.

Compatible Vehicles and Applications

This radiator is compatible with the following makes and models:

• Buick Cutlass Supreme
• Chevrolet Lumina
• Oldsmobile Regal
• Pontiac Grand Prix
• Pontiac Monte Carlo

Using the Denso 221-9003 radiator ensures proper fitment and performance in these vehicles, supporting engine cooling and transmission fluid temperature regulation.

Common Issues Addressed by This Radiator

• Engine overheating due to inefficient heat dissipation
• Transmission fluid overheating affecting transmission performance
• Leaks or damage in the radiator core or tanks
• Reduced cooling efficiency from clogged or corroded radiator passages
• Incompatibility with original cooling system components

Installation Notes and Tips

When installing the Denso 221-9003 radiator, ensure all hose connections match the 1.3380-inch 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 inspect and replace any worn hoses or clamps during installation to prevent leaks. Properly bleed the cooling system after installation to remove air pockets and ensure optimal performance.

Quality Assurance and Warranty

Denso radiators are manufactured to meet OEM specifications, providing reliable cooling system performance. The 221-9003 radiator undergoes rigorous quality control to ensure durability and fitment accuracy. Warranty coverage details should be confirmed with the original equipment manufacturer or authorized distributor.