Denso 221-3312 Radiator

Denso Radiator for Mitsubishi Lancer, Outlander, and Outlander Sport

Denso radiator Part Number 221-3312 is an OE-style cooling replacement for select Mitsubishi applications. It is built to match factory radiator dimensions and connection sizes for dependable engine cooling in daily driving and demanding conditions.

Key Features

• Core height: 27.5620 in.
• Core width: 15.8120 in.
• Core thickness: 0.6250 in.
• Inlet diameter: 1.3750 in.
• Outlet diameter: 1.3750 in.
• No transmission oil cooler included
• OE-based radiator configuration for fitment accuracy

Detailed Description

This Denso radiator, Part Number 221-3312, is engineered around OE specifications for the Mitsubishi Lancer, Mitsubishi Outlander, and Mitsubishi Outlander Sport. Denso supplies radiators to vehicle manufacturers worldwide, and this replacement follows the same focus on correct tank design, fin pitch, core dimensions, and material selection used in factory cooling systems. The result is a radiator built for proper fitment and stable heat transfer in the engine cooling circuit.

With a 27.5620-inch core height, 15.8120-inch core width, and 0.6250-inch core thickness, this radiator is sized to match the listed applications. The 1.3750-inch inlet and 1.3750-inch outlet support direct hose connection sizing for the covered Mitsubishi models. Part Number 221-3312 is a practical choice when replacing a leaking, clogged, or damaged radiator on a 2008-2011 Mitsubishi Lancer, 2008-2011 Mitsubishi Outlander, or 2011 Mitsubishi Outlander Sport.

This part cross-references Mitsubishi MN156092 for the same application.

What This Radiator Helps Address

• Engine overheating caused by restricted coolant flow
• Coolant leaks from a cracked or corroded radiator core
• Temperature instability from reduced heat dissipation
• Fitment issues when replacing an OE-style Mitsubishi radiator
• Cooling system service needs on high-mileage vehicles

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet sizes, and hose routing before installation. Inspect the cooling fan, thermostat, radiator cap, and hoses during replacement to help prevent repeat cooling-system problems. Flush the cooling system if contamination, rust, or debris is present, and refill with the correct coolant specification for the vehicle.

Fits 2008-2011 Mitsubishi Lancer, N/A. Fits 2008-2011 Mitsubishi Outlander, N/A. Fits 2011 Mitsubishi Outlander Sport, N/A.

Quality Assurance

Denso uses OE manufacturing experience and durability testing standards to support consistent radiator performance, fitment, and reliability. Each radiator is evaluated for function and durability before release to help meet the demands of everyday driving and harsh operating conditions.