Part #: 221-7003

Denso 221-7003 Radiator

⚙️ 16 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Dodge, Ram 2500, Ram 3500, and Ram 1500
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Overview of the Denso Radiator for Dodge Ram Trucks

The Denso 221-7003 radiator is engineered specifically for Dodge Ram 1500, Ram 2500, and Ram 3500 models. Designed to maintain optimal engine temperature, this radiator includes a transmission oil cooler to support both engine and transmission cooling needs.

  • Core Height: 19.409 inches
  • Core Thickness: 1.250 inches
  • Core Width: 3.149 inches
  • Transmission Oil Cooler Included
  • Inlet Diameter: 1.377 inches
  • Outlet Diameter: 1.377 inches

Technical Specifications and Features

The Denso 221-7003 radiator features a robust core measuring 19.409 inches in height, 3.149 inches in width, and 1.250 inches in thickness. These dimensions ensure efficient heat dissipation for the engine cooling system. The radiator also integrates a transmission oil cooler, which helps maintain transmission fluid temperature, enhancing transmission performance and longevity. Both the inlet and outlet diameters are 1.377 inches, providing compatibility with the factory cooling system hoses on Dodge Ram 1500, 2500, and 3500 trucks.

Compatible Vehicles and Applications

This radiator is compatible with Dodge Ram 1500, Ram 2500, and Ram 3500 models, making it a suitable replacement part for maintaining proper engine and transmission cooling. The Denso 221-7003 radiator is designed to meet the specific cooling requirements of these trucks, ensuring reliable operation under various driving conditions.

Common Issues Addressed by the Denso Radiator

  • Overheating engine 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
  • Compatibility issues with OEM cooling system components

Installation Notes and Tips

When installing the Denso 221-7003 radiator, ensure all connections, including the inlet and outlet hoses with 1.377-inch diameters, are secure and free of leaks. It is recommended to flush the cooling system before installation to remove any debris or contaminants. Properly bleed the cooling system after installation to prevent air pockets and ensure optimal cooling performance. Verify that the transmission oil cooler lines are correctly connected to maintain transmission fluid temperature control.

Quality Assurance and Warranty Information

Denso radiators are manufactured to meet strict quality standards, ensuring durability and reliable performance. The 221-7003 radiator undergoes rigorous testing to comply with OEM specifications for Dodge Ram trucks. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary by region and purchase source.

BrandDenso
Part Number221-7003
Core Height19.4090
Core Thickness1.2500
Core Width03.1490
Inlet Diameter1.3770
Outlet Diameter1.3770
Transmission Oil Cooler IncludedYES

This part fits 16 vehicles. Search below:

YearMakeModelTransmissionPositionNotes
2002DodgeRam 2500AutomaticN/A
2002DodgeRam 3500N/A
2001DodgeRam 1500AutomaticN/A
2001DodgeRam 1500N/A
2001DodgeRam 2500AutomaticN/A
2001DodgeRam 3500N/A
2000DodgeRam 1500AutomaticN/A
2000DodgeRam 1500ManualN/A
2000DodgeRam 2500AutomaticN/A
2000DodgeRam 3500N/A
1999DodgeRam 1500AutomaticN/A
1999DodgeRam 1500ManualN/A
1999DodgeRam 2500AutomaticN/A
1999DodgeRam 3500ManualN/A
1998DodgeRam 2500AutomaticN/A
1998DodgeRam 3500N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

8012291

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.