Denso 221-3139 Radiator

Denso Radiator for Toyota Tacoma

The Denso 221-3139 radiator is built for Toyota Tacoma cooling system service with OE-style fitment and construction. It matches the dimensions and connection sizes needed for direct replacement on supported Tacoma applications, including models with an automatic transmission oil cooler.

Key Features

• OE-style radiator replacement from Denso
• Core height: 21.1870 in.
• Core width: 25.5620 in.
• Core thickness: 0.8750 in.
• Inlet diameter: 1.3750 in.
• Outlet diameter: 1.3750 in.
• Transmission oil cooler included
• Built to OE manufacturer standards for configuration, materials, and fitment

Detailed Description

Denso part number 221-3139 is a radiator engineered for Toyota Tacoma cooling system replacement where OE dimensions and connection points matter. Denso supplies radiators to vehicle manufacturers worldwide, and this unit reflects that OE-focused experience through its core sizing, tank design, fin pitch, and material selection. For Tacoma owners servicing the cooling system, the 221-3139 provides the correct layout for dependable engine temperature control and transmission fluid cooling in supported applications.

This radiator cross-references Toyota 16410-0C180 and 16410-0P030 for the same application.

Vehicle Fitment

• Fits 2005-2015 Toyota Tacoma, N/A
• Fits 2016 Toyota Tacoma, N/A, to 08/2015

Common Problems This Radiator Addresses

• Coolant leaks from a damaged or aging radiator
• Overheating caused by restricted or inefficient heat transfer
• Transmission temperature concerns in vehicles with an integrated cooler
• Cracked tanks, worn seams, or corrosion in the original radiator
• Reduced cooling performance from a clogged or deteriorated core

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet size, and transmission cooler connections before installation. Flush the cooling system, inspect hoses and clamps, and confirm the replacement matches the Tacoma model year and build date listed for your vehicle. Proper bleeding of the cooling system after installation helps restore stable operating temperatures.

Quality Assurance

Denso radiators are manufactured to meet OE standards and undergo durability and function testing before release. The 221-3139 is built for reliable performance in demanding driving conditions and for consistent fitment on supported Toyota Tacoma applications.