Koyorad A13370 Radiator

Koyorad A13370 Radiator for BMW X3

The Koyorad A13370 radiator is an OE-equivalent replacement built for 2011-2016 BMW X3 models. It uses an aluminum core with plastic tanks to match the factory-style layout and cooling requirements for this application.

For BMW X3 owners searching for a direct-fit radiator replacement, Koyorad A13370 provides the core dimensions and hose connections needed for a straightforward service repair.

Key Features

• Fits 2011-2016 BMW X3
• Part number: A13370
• Aluminum core construction
• Plastic tank design
• Single-row core
• Core dimensions: 23.625 in. height, 16.125 in. width, 1.3125 in. thickness
• Inlet diameter: 1.5 in.
• Outlet diameter: 1.5 in.

Detailed Description

Koyorad A13370 is a radiator replacement for the BMW X3 that follows OE-style construction and sizing. The aluminum core supports efficient heat transfer, while the plastic tanks mirror the factory configuration used on the listed vehicles. With a single-row core and matched 1.5-inch inlet and outlet diameters, this radiator is built for the cooling system layout found in 2011-2016 BMW X3 models.

Koyorad focuses on replacement radiators that reflect original equipment specifications, and the A13370 continues that approach for BMW X3 cooling system service. If you are replacing a leaking, damaged, or restricted radiator, this part number offers a direct application for the listed years.

What This Radiator Helps Address

• Coolant leaks from a cracked or aging radiator
• Overheating caused by reduced heat dissipation
• Cooling system loss from damaged tanks or core surfaces
• Restricted coolant flow from internal radiator wear
• Service replacement for a failed BMW X3 radiator

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet size, and hose routing before installation. Inspect related cooling system components such as hoses, clamps, thermostat, and coolant condition during replacement. Proper bleeding of the cooling system is important after installation to help remove trapped air and restore normal operation.

Quality Assurance

Koyorad manufactures OE-equivalent replacement radiators using application-specific engineering and production experience. This part cross-references OE-style radiator applications for the same vehicle fitment.