Denso 221-3163 Radiator

Denso Radiator for Scion xB

The Denso 221-3163 radiator is built for 2008-2015 Scion xB models and follows OE-style specifications for fitment and cooling performance. With an integrated transmission oil cooler and core dimensions matched to the application, it supports stable engine temperature control in daily driving and demanding conditions.

Key Features

• Fits 2008-2015 Scion xB
• Part number 221-3163
• Transmission oil cooler included
• Core height: 23.6250 in.
• Core width: 14.5620 in.
• Core thickness: 1.0600 in.
• Inlet diameter: 1.3750 in.
• Outlet diameter: 1.3750 in.

Detailed Description

Denso designs this radiator to match OE manufacturer standards for configuration, tank design, fin pitch, core dimensions, and materials. That attention to detail helps the 221-3163 deliver proper cooling-system fitment for the Scion xB while supporting efficient heat transfer and dependable operation. This part cross-references Spectra Premium (e.g., CU13001) for the same application.

Common Cooling Issues It May Address

• Engine temperature running higher than normal
• Coolant leaks from a worn or damaged radiator
• Reduced cooling efficiency from clogged or aging radiator passages
• Transmission fluid temperature concerns when the cooler circuit is part of the system
• Fitment problems caused by an incorrect replacement radiator

Installation Notes and Tips

Verify the inlet and outlet sizes, core dimensions, and transmission cooler connections before installation. Flush the cooling system, inspect hoses and clamps, and replace degraded coolant as needed. Confirm the radiator mounts and shrouding align with the vehicle before final assembly. Fits 2008-2015 Scion xB, N/A.

Quality Assurance

Denso subjects its radiators to durability and function testing to help ensure consistent performance and fitment. As an OE supplier to vehicle manufacturers worldwide, Denso applies production standards developed from original-equipment experience to this radiator.