Denso 221-9539 Radiator

Denso Radiator 221-9539 for Mitsubishi Cooling

The Denso 221-9539 radiator is built for Mitsubishi applications that need consistent engine cooling and OE-style fitment. It is engineered around core dimensions, tank design, fin pitch, and materials that align with original equipment standards.

For Mitsubishi Outlander Sport, RVR, and Lancer models, this radiator supports stable coolant flow and dependable heat transfer under daily driving and demanding conditions.

Key Features

• Core height: 27.5591
• Core width: 15.8661
• Core thickness: 0.6299
• Inlet diameter: 1.3780
• Outlet diameter: 1.378
• OE-focused radiator configuration for proper fitment and cooling performance
• Built and tested to meet Denso durability and function standards

Detailed Description

Denso radiator part number 221-9539 is a direct-fit cooling component for select Mitsubishi vehicles, including the 2014-2021 Mitsubishi Lancer, 2016-2021 Mitsubishi Outlander Sport, and 2016-2021 Mitsubishi RVR. Denso supplies radiators to OE vehicle manufacturers worldwide, and this product reflects that experience through its core sizing, tank layout, and material selection. This part cross-references Spectra Premium CU13525 and Mitsubishi 1350A761 for the same application.

The Denso Radiator line focuses on OE-style replacement parts that match factory requirements for cooling efficiency and fitment. That makes the 221-9539 a practical choice when replacing a worn or leaking radiator on Mitsubishi Outlander Sport, RVR, or Lancer models.

What This Radiator Helps Address

• Engine overheating caused by reduced coolant flow
• Coolant leaks from a damaged or aging radiator core or tank
• Temperature instability during stop-and-go driving
• Cooling performance loss from clogged or corroded radiator passages
• Fitment issues when replacing an OE-style Mitsubishi radiator

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet size, and vehicle application before installation. Confirm the exact model year and build date for 2016 Mitsubishi Outlander Sport and 2016 Mitsubishi RVR, since fitment notes specify vehicles built from 01/01/2016. For 2014 Mitsubishi Lancer, the fitment note applies from 09/2013.

Use clean coolant, inspect hoses and clamps, and check the cooling system for contamination or pressure loss before installing the new radiator. Proper bleeding of the cooling system helps restore normal operating temperature and circulation.

Quality Assurance

Denso designs its radiators using OE supplier experience and validates them through durability and function testing. The result is a radiator built to support reliable cooling performance and consistent fitment for Mitsubishi applications.