Denso 221-3231 Radiator

Denso Radiator for Acura TL Cooling Service

The Denso 221-3231 radiator is an OE-style replacement built for 2004-2006 Acura TL applications. It follows Denso’s original-equipment engineering standards for fitment, core design, and cooling performance, making it a direct choice for Acura TL radiator replacement service.

With a 16.7500-inch core height, 28.0620-inch core width, and 1.0000-inch core thickness, this radiator is sized for the specified Acura TL platform. It uses 0.9370-inch inlet and outlet diameters and does not include a transmission oil cooler.

Key Features

• Part number: 221-3231
• Compatible with 2004-2006 Acura TL
• Core height: 16.7500 in.
• Core width: 28.0620 in.
• Core thickness: 1.0000 in.
• Inlet diameter: 0.9370 in.
• Outlet diameter: 0.9370 in.
• Transmission oil cooler included: No
• Built to OE configuration standards for fitment and cooling performance

Detailed Description

Denso radiators are supplied to OE car makers worldwide, and the 221-3231 reflects that manufacturing background with a radiator configuration matched to the original application. For Acura TL radiator replacement needs, this unit is engineered around the specified core dimensions, tank layout, fin pitch, and materials used to meet OE requirements. The result is a radiator intended to maintain proper engine cooling and stable operation in daily driving conditions.

This part cross-references Acura (e.g., 19010-RDA-A51, 19010-RDA-A52) for the same application. It is also referenced by aftermarket listings such as APDI 8012773 and Spectra Premium CU2773. If you are searching for a Denso 221-3231 radiator for Acura TL cooling repair, this part number is the direct identifier to verify before ordering.

What It Helps Address

• Engine overheating caused by a failing radiator core
• Coolant leaks from aged or damaged radiator components
• Restricted heat transfer from worn internal passages
• Cooling system performance loss in 2004-2006 Acura TL models
• Fitment issues from using the wrong radiator dimensions

Installation Notes and Tips

Confirm radiator dimensions, inlet and outlet size, and transmission cooler requirements before installation. Inspect hoses, clamps, and coolant condition during replacement, and verify that the cooling system is properly bled after installation. For Acura TL radiator service, match the vehicle year and application exactly to the listed fitment.

Quality Assurance

Denso states that its radiators undergo durability and function testing before release. The brand’s OE supply experience supports consistent fitment and cooling performance for the 2004-2006 Acura TL application covered by part number 221-3231.