Denso 221-3115 Radiator

Denso 221-3115 Radiator for Toyota RAV4

The Denso 221-3115 radiator is an OE-style cooling replacement built for 2001-2003 Toyota RAV4 models. It uses Denso’s OE supplier experience to deliver the core dimensions, tank design, fin pitch, and materials needed for consistent engine cooling and proper fitment.

Compatible with Toyota RAV4 cooling system service, this radiator includes an integrated transmission oil cooler and is sized for direct replacement applications where accurate inlet, outlet, and core measurements matter.

Key Features

• Fits 2001-2003 Toyota RAV4, N/A
• Part number 221-3115 for direct identification
• Core height: 14.7500 in.
• Core width: 29.0620 in.
• Core thickness: 1.0000 in.
• Inlet diameter: 1.3750 in.
• Outlet diameter: 1.3750 in.
• Transmission oil cooler included

Detailed Description

Denso radiator 221-3115 is engineered to match OE specifications for the Toyota RAV4 cooling system. The radiator configuration is built around the listed core dimensions and hose connections, helping maintain proper coolant flow and heat transfer under everyday driving and demanding operating conditions. Denso’s manufacturing approach emphasizes fitment accuracy and durability testing, which is important when replacing a radiator on a 2001-2003 Toyota RAV4.

This part cross-references Toyota 16400-28130 and 16400-28190 for the same application.

Common Problems This Radiator Can Address

• Coolant leaks from a damaged or corroded radiator
• Overheating caused by restricted heat dissipation
• Transmission fluid cooling issues when the radiator cooler circuit is compromised
• Poor fitment after an incorrect replacement radiator
• Reduced cooling performance from aging core fins or tanks

Installation Notes and Tips

Verify the inlet and outlet diameters, core size, and transmission cooler connections before installation. Flush the cooling system, inspect hoses and clamps, and confirm the radiator mounts and fan shroud alignment are in good condition. After installation, refill with the correct coolant mixture and bleed air from the system according to Toyota service procedures.

Quality Assurance

Denso supplies radiators to OE vehicle manufacturers and subjects its radiators to durability and function testing before release. The 221-3115 is built to meet OE-level standards for performance, reliability, and fitment on the Toyota RAV4.