Denso 221-3602 Radiator

Denso Radiator for Subaru Forester and Impreza

Denso 221-3602 is an OE-style radiator built for Subaru cooling systems that demand accurate fitment and stable heat transfer. It is a direct replacement for select 1999-2002 Subaru Forester and 1999-2001 Subaru Impreza applications, with transmission oil cooler integration included.

Key Features

• Core height: 13.3750 in.
• Core width: 27.1870 in.
• Core thickness: 0.6250 in.
• Inlet diameter: 1.5620 in.
• Outlet diameter: 1.5620 in.
• Transmission oil cooler included
• OE-focused radiator configuration for proper cooling performance

Detailed Description

Denso 221-3602 is engineered using the company’s OE radiator experience to match factory-style dimensions, tank design, fin pitch, core size, and material selection. That attention to fit and thermal performance helps maintain consistent engine temperature control in Subaru Forester and Subaru Impreza models from the listed years. This radiator cross-references Spectra Premium CU2402 for the same application.

For buyers searching for a Subaru Forester radiator or Subaru Impreza radiator replacement, this part number 221-3602 offers a direct-fit solution built around OE specifications rather than universal sizing. It is suited for drivers replacing a leaking, clogged, or damaged radiator on 1999-2002 Subaru Forester and 1999-2001 Subaru Impreza vehicles.

What This Radiator Helps Address

• Engine overheating caused by reduced coolant flow
• Coolant leaks from a cracked or corroded radiator
• Transmission cooling concerns when the factory cooler circuit is part of the system
• Temperature instability from a restricted or inefficient core
• Fitment issues from using the wrong Subaru Forester or Impreza radiator

Installation Notes and Tips

Verify core dimensions, inlet and outlet size, and transmission cooler connections before installation. Flush the cooling system, inspect hoses and clamps, and replace worn seals or related components as needed. Confirm vehicle fitment by year and model before ordering, especially on Subaru Forester and Subaru Impreza applications.

Quality Assurance

Denso states that its radiators are built to OE standards and undergo durability and function testing before release. The result is a radiator designed to deliver dependable cooling performance under demanding operating conditions.