Part #: 221-9455

Denso 221-9455 Radiator

⚙️ 32 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mercedes-Benz, CL65 AMG, S65 AMG, CL63 AMG, S63 AMG, CL550, CL600, S550, and S600
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Overview of Denso Radiator 221-9455 for Mercedes-Benz Models

The Denso radiator part number 221-9455 is engineered for select Mercedes-Benz vehicles, including the CL63 AMG, CL65 AMG, CL550, CL600, S63 AMG, S65 AMG, S550, and S600. Designed to maintain optimal engine temperature, this radiator features integrated transmission oil cooling to support vehicle performance under demanding conditions.

  • Core Height: 25.1969 inches
  • Core Width: 18.8976 inches
  • Core Thickness: 1.3386 inches
  • Transmission Oil Cooler Included
  • Inlet Diameter: 1.8125 inches
  • Outlet Diameter: 1.0625 inches

Technical Details and Specifications

This Denso radiator (part number 221-9455) is designed with precise core dimensions to ensure efficient heat dissipation. The core height of 25.1969 inches and width of 18.8976 inches provide a substantial surface area for cooling. The core thickness of 1.3386 inches balances durability with effective airflow. The radiator includes a built-in transmission oil cooler, which helps maintain transmission fluid temperature, critical for the performance and longevity of Mercedes-Benz AMG and luxury models. The inlet and outlet diameters of 1.8125 inches and 1.0625 inches respectively are designed to match factory specifications for seamless integration.

Compatible Mercedes-Benz Models

This radiator is compatible with a range of Mercedes-Benz vehicles, specifically the CL63 AMG, CL65 AMG, CL550, CL600, S63 AMG, S65 AMG, S550, and S600 models. It is engineered to meet the cooling demands of these high-performance and luxury vehicles, ensuring reliable operation under various driving conditions.

Common Applications and Problem Resolution

  • Replaces faulty or leaking radiators in Mercedes-Benz AMG and luxury sedans
  • Addresses overheating issues caused by radiator core damage or clogging
  • Restores proper transmission fluid cooling with integrated oil cooler
  • Improves engine cooling efficiency for vehicles experiencing temperature fluctuations
  • Supports vehicle performance by maintaining optimal operating temperatures

Installation Notes and Tips

When installing the Denso radiator 221-9455, ensure all hose connections match the specified inlet and outlet diameters for a secure fit. Verify compatibility with your specific Mercedes-Benz model year and engine configuration. It is recommended to inspect and replace related cooling system components such as hoses and clamps during installation to prevent future leaks. Proper bleeding of the cooling system after installation is essential to avoid air pockets and ensure efficient operation.

Quality Assurance and Warranty

Denso radiators are manufactured to meet OEM standards for fit, form, and function. The 221-9455 radiator undergoes rigorous quality control to ensure durability and performance. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms related to this radiator.

BrandDenso
Part Number221-9455
Core Height25.1969
Core Thickness1.3386
Core Width18.8976
Inlet Diameter1.8125
Outlet Diameter1.0625
Transmission Oil Cooler IncludedYES

This part fits 32 vehicles. Search below:

YearMakeModelPositionNotes
2014Mercedes-BenzCL65 AMGN/APrimary (Engine Cooling)
2013Mercedes-BenzCL65 AMGN/APrimary (Engine Cooling)
2013Mercedes-BenzS65 AMGN/APrimary (Engine Cooling)
2012Mercedes-BenzCL65 AMGN/APrimary (Engine Cooling)
2012Mercedes-BenzS65 AMGN/APrimary (Engine Cooling)
2011Mercedes-BenzCL65 AMGN/APrimary (Engine Cooling)
2011Mercedes-BenzS65 AMGN/APrimary (Engine Cooling)
2010Mercedes-BenzCL63 AMGN/A
2010Mercedes-BenzCL65 AMGN/APrimary (Engine Cooling)
2010Mercedes-BenzS63 AMGN/A
2010Mercedes-BenzS65 AMGN/APrimary (Engine Cooling)
2009Mercedes-BenzCL550N/A
2009Mercedes-BenzCL600N/APrimary (Engine Cooling)
2009Mercedes-BenzCL63 AMGN/A
2009Mercedes-BenzCL65 AMGN/APrimary (Engine Cooling)
2009Mercedes-BenzS550N/A
2009Mercedes-BenzS600N/APrimary (Engine Cooling)
2009Mercedes-BenzS63 AMGN/A
2009Mercedes-BenzS65 AMGN/APrimary (Engine Cooling)
2008Mercedes-BenzCL550N/A
2008Mercedes-BenzCL600N/APrimary (Engine Cooling)
2008Mercedes-BenzCL63 AMGN/A
2008Mercedes-BenzCL65 AMGN/APrimary (Engine Cooling)
2008Mercedes-BenzS550N/A
2008Mercedes-BenzS600N/APrimary (Engine Cooling)
2008Mercedes-BenzS63 AMGN/A
2008Mercedes-BenzS65 AMGN/APrimary (Engine Cooling)
2007Mercedes-BenzCL550N/A
2007Mercedes-BenzCL600N/APrimary (Engine Cooling)
2007Mercedes-BenzS550N/A
2007Mercedes-BenzS600N/APrimary (Engine Cooling)
2007Mercedes-BenzS65 AMGN/APrimary (Engine Cooling)

* 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:

8012907

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