Denso 221-9120 Radiator

Denso 221-9120 Radiator for Jeep Cooling Systems

The Denso 221-9120 radiator is built for Jeep Commander and Jeep Grand Cherokee applications that need dependable engine cooling and OE-style fitment. With core dimensions, inlet and outlet sizing, and materials engineered to meet original equipment standards, this radiator supports consistent heat transfer in demanding driving conditions.

• Core height: 23.1496
• Core width: 19.7638
• Core thickness: 1.2598
• Inlet diameter: 1.4961
• Outlet diameter: 1.7913
• Transmission oil cooler included: No
• OE-focused radiator configuration for accurate fitment

OE-Style Cooling Performance

Denso supplies radiators to original equipment vehicle manufacturers worldwide, and the 221-9120 reflects that OE engineering background. The radiator’s core dimensions, tank design, fin pitch, and material selection are built to match manufacturer standards for cooling efficiency, fit, and durability. This makes the Denso 221-9120 a direct replacement choice for 2006-2010 Jeep Commander and 2005-2010 Jeep Grand Cherokee cooling system service.

This part cross-references Spectra Premium CU2840 and CSF 3292 for the same application.

Vehicle Fitment

• Fits 2006-2010 Jeep Commander, N/A
• Fits 2005-2010 Jeep Grand Cherokee, N/A

Common Cooling Issues It Can Address

• Engine overheating from a leaking or restricted radiator
• Coolant loss caused by cracked tanks or damaged core passages
• Reduced heat dissipation from worn internal radiator components
• Temperature instability during stop-and-go or towing conditions
• Cooling system service needs on Jeep Commander and Jeep Grand Cherokee models

Installation Notes and Tips

Verify inlet and outlet hose sizes, mounting points, and overall core dimensions before installation. Flush the cooling system, inspect hoses and clamps, and replace degraded coolant as part of the repair. Confirm that the vehicle does not require a transmission oil cooler in the radiator, since this unit does not include one.

Quality Assurance

Denso radiators are manufactured to OE-level standards and undergo durability and function testing before release. The 221-9120 is engineered for reliable cooling performance and fitment consistency in Jeep Commander and Jeep Grand Cherokee applications.