Denso 221-9427 Radiator

Denso Radiator for Ford Mustang

The Denso 221-9427 radiator is an OE-style cooling replacement built for Ford Mustang applications from 2015-2023. It is engineered around the core dimensions, tank design, fin pitch, and materials required for consistent engine cooling and dependable fitment.

For Mustang owners replacing a worn or leaking radiator, this Denso radiator supports stable coolant flow and heat transfer without adding a transmission oil cooler. It is a direct-fit cooling component for select Ford Mustang models, including 2021-2023 Mustang less Performance Pack and 2018-2020 Mustang excluding Performance Package.

Key Features

• Part number: 221-9427
• Core height: 25.2756 in.
• Core width: 20.5039 in.
• Core thickness: 0.9843 in.
• Inlet diameter: 1.5000 in.
• Outlet diameter: 1.5000 in.
• No transmission oil cooler included
• OE-based radiator configuration for fitment accuracy

Product Details

Denso radiators are supplied to OE vehicle manufacturers, and this radiator follows the same focus on dimensional accuracy and durability testing. The 221-9427 is built to match the cooling system requirements of Ford Mustang models across multiple years, with attention to core size, tank layout, and material selection. If you are searching for a Ford Mustang radiator replacement, Denso 221-9427 provides a direct replacement option for the listed applications.

This part cross-references Ford FR3Z 8005-A and FR3Z 8005-F for the same application.

What This Radiator Helps Address

• Overheating caused by a failing radiator core
• Coolant leaks from cracked or corroded radiator tanks
• Restricted heat dissipation from an aging cooling system
• Fitment issues when replacing a damaged Ford Mustang radiator
• Cooling performance loss in daily driving or demanding conditions

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet size, and transmission cooler requirements before installation. This radiator does not include a transmission oil cooler, so confirm your Mustang’s cooling system configuration matches the listed application. Inspect hoses, clamps, and coolant condition during replacement to help ensure a clean installation.

Quality Assurance

Denso builds this radiator using OE-level engineering standards and subjects it to durability and function testing before release. That process supports reliable cooling performance and consistent fitment for the listed Ford Mustang applications.