Denso 221-9325 Radiator

Denso Radiator for Mercedes-Benz AMG Cooling

The Denso 221-9325 radiator is built for Mercedes-Benz AMG applications that demand stable engine cooling under high load. It uses OE-style dimensions and materials to support proper fitment and consistent thermal performance in demanding driving conditions.

Key Features

• Core height: 25.2000
• Core width: 18.1500
• Core thickness: 1.3400
• Inlet diameter: 2.0100
• Outlet diameter: 2.0100
• No transmission oil cooler included
• OE-based radiator configuration for accurate replacement fit

Detailed Description

Denso part number 221-9325 is a radiator engineered for select Mercedes-Benz AMG models, including SL63 AMG, SL65 AMG, CLS63 AMG, E63 AMG, SLK55 AMG, C63 AMG, and SLS AMG applications. The radiator core dimensions and connection sizes are specified to match the vehicle cooling system layout, helping maintain proper coolant flow and heat rejection. Denso’s OE supplier background and durability testing support dependable performance in primary engine cooling use.

This part cross-references Spectra Premium CU13358 for the same application.

What This Radiator Helps Address

• Engine overheating from a weakened or restricted radiator
• Coolant leaks caused by aging radiator tanks or core damage
• Reduced cooling efficiency during stop-and-go or high-load driving
• Fitment issues when replacing an original Mercedes-Benz AMG radiator
• Cooling system performance loss after corrosion or internal blockage

Installation Notes and Tips

Verify inlet and outlet diameter, core size, and vehicle application before installation. This radiator does not include a transmission oil cooler, so confirm your original setup matches that configuration. For best results, inspect hoses, clamps, coolant condition, and related cooling components during replacement.

Quality Assurance

Denso supplies radiators to OE car makers worldwide, and this radiator is built to meet OE manufacturer standards for configuration, fitment, and durability. Each unit is tested for function and long-term reliability before release.

Compatible With Mercedes-Benz AMG Models

• Fits 2015-2019 Mercedes-Benz SL63 AMG, N/A, Primary (Engine Cooling)
• Fits 2018 Mercedes-Benz CLS63 AMG S, N/A
• Fits 2015-2018 Mercedes-Benz SL65 AMG, N/A, Primary (Engine Cooling)
• Fits 2014-2017 Mercedes-Benz CLS63 AMG S, N/A, Primary(Engine Cooling)
• Fits 2014-2016 Mercedes-Benz E63 AMG S, N/A, Primary (Engine Cooling)
• Fits 2012-2016 Mercedes-Benz SLK55 AMG, N/A
• Fits 2012-2015 Mercedes-Benz C63 AMG, N/A
• Fits 2015 Mercedes-Benz E63 AMG, N/A, Primary (Engine Cooling)
• Fits 2015 Mercedes-Benz SLS AMG, N/A, Primary (Engine Cooling)
• Fits 2012-2014 Mercedes-Benz CLS63 AMG, N/A, Primary(Engine Cooling)
• Fits 2012-2014 Mercedes-Benz E63 AMG, N/A, Primary(Engine Cooling)
• Fits 2013-2014 Mercedes-Benz SL63 AMG, N/A, Primary(Engine Cooling)
• Fits 2013-2014 Mercedes-Benz SL65 AMG, N/A, Primary(Engine Cooling)
• Fits 2011-2014 Mercedes-Benz SLS AMG, N/A
• Fits 2010-2011 Mercedes-Benz E63 AMG, N/A