Denso 221-9438 Radiator

Denso Radiator for Acura ILX

This Denso radiator is built for Acura ILX cooling system service with OE-style dimensions and materials. Part number 221-9438 is engineered to match the radiator configuration used on select 2016-2022 Acura ILX applications for dependable engine temperature control.

Key Features

• Core height: 14.7500 in.
• Core width: 27.0625 in.
• Core thickness: 1.0000 in.
• Inlet diameter: 1.2500 in.
• Outlet diameter: 1.2500 in.
• No transmission oil cooler included
• OE-style radiator construction from Denso

Product Details

Denso radiators are supplied to OE car makers worldwide, and this radiator reflects that OE-focused engineering approach. The core dimensions, tank design, fin pitch, and materials are built to meet strict manufacturer standards for fitment and cooling performance. For Acura ILX owners, Denso 221-9438 provides a direct replacement option for maintaining stable coolant flow and consistent heat rejection in daily driving and demanding conditions.

This part cross-references Spectra Premium CU13537 for the same application.

What It Helps Address

• Engine overheating caused by a restricted or leaking radiator
• Coolant loss from cracked tanks or damaged core passages
• Temperature fluctuations during stop-and-go driving
• Poor heat transfer from an aging factory radiator
• Cooling system service on Acura ILX models with OE-style fitment

Installation Notes

Fits 2016-2019 Acura ILX, N/A. Fits 2020-2022 Acura ILX, N/A. Verify inlet and outlet hose sizes, mounting points, and surrounding cooling system components before installation. Flush the cooling system, inspect hoses and clamps, and refill with the correct coolant specification after replacement.

Quality Assurance

Denso uses OE supplier experience and durability testing to validate radiator performance, fitment, and function. This radiator is built to meet the standards expected for Acura ILX cooling system replacement.