Denso 221-9034 Radiator

Denso Radiator for Dodge Ram Cooling Performance

This Denso radiator, part number 221-9034, is built for 2004-2005 Dodge Ram 1500, Dodge Ram 2500, and Dodge Ram 3500 applications. It is engineered to match OE-style fitment and cooling requirements for Ram truck owners replacing a worn or leaking radiator.

Key Features

• Core height: 24.1339 in.
• Core width: 20.0787 in.
• Core thickness: 1.5748 in.
• Inlet diameter: 1.5000 in.
• Outlet diameter: 1.7500 in.
• Transmission oil cooler: not included
• OE-focused radiator design from Denso

Detailed Description

Denso part number 221-9034 is a replacement radiator designed for the cooling demands of 2004-2005 Dodge Ram 1500, Ram 2500, and Ram 3500 trucks. Denso supplies radiators to OE vehicle manufacturers worldwide, and this radiator reflects that OE engineering approach with dimensions, tank design, fin pitch, core sizing, and materials selected to meet strict manufacturer standards. For Ram truck cooling system service, 221-9034 provides the correct inlet and outlet sizing and a core layout built for dependable heat transfer.

This radiator cross-references Spectra Premium CU2813 for the same application.

What This Radiator Helps Address

• Engine overheating caused by a restricted or inefficient radiator
• Coolant leaks from a damaged or corroded radiator core
• Temperature instability during towing, hauling, or stop-and-go driving
• Cooling system service on a 2004-2005 Dodge Ram 1500, Ram 2500, or Ram 3500
• Replacement of an aging OE radiator with a direct-fit style unit

Installation Notes and Tips

Verify inlet and outlet hose sizes before installation, and confirm that the radiator matches the vehicle’s cooling system layout. Because the transmission oil cooler is not included, check whether your truck requires a separate cooler arrangement before beginning the repair. Flush the cooling system, inspect hoses and clamps, and refill with the correct coolant mixture after installation.

Quality Assurance

Denso radiators are built using OE supplier experience and are subjected to durability and function testing before release. That testing process helps ensure consistent fitment and cooling performance for Dodge Ram 1500, Ram 2500, and Ram 3500 applications.