Koyorad A13797 Radiator

Koyorad A13797 Radiator for BMW and Mini

The Koyorad A13797 radiator is an OE-equivalent replacement built for select BMW and Mini applications that use external oil cooling. It combines an aluminum core with plastic tanks and integrated engine and transmission oil coolers for a direct-fit cooling solution.

Koyorad Radiator products are focused on accurate replacement fitment and consistent thermal performance. This radiator is engineered for drivers replacing a worn or leaking unit on BMW X1, BMW X2, and John Cooper Works Mini models.

Key Features

• Part number: A13797
• Aluminum core with plastic tanks
• Single-row core design
• Core dimensions: 26.75 in. height, 11.5625 in. width, 1.0625 in. thickness
• Inlet and outlet diameter: 1.25 in.
• Includes engine oil cooler with 3-plate design
• Includes transmission oil cooler with 4-plate design
• Engine oil cooler diameter: 1.625 in.
• Transmission oil cooler diameter: 1.0625 in.

Detailed Description

The Koyorad A13797 radiator is built as an OE-style replacement for vehicles that require both engine and transmission cooling support. Its aluminum core helps transfer heat efficiently, while the plastic tank construction matches common factory radiator layouts. This part cross-references Bosch 13797 and BM3010198 for the same application. Use A13797 when replacing the radiator on a 2016-2019 BMW X1, 2018-2019 BMW X2, or select Mini Cooper John Cooper Works models that call for this configuration.

What This Radiator Helps Address

• Coolant leaks from a damaged or aging radiator
• Reduced cooling performance from a restricted core
• Transmission temperature issues tied to a failing cooler circuit
• Engine oil cooling concerns on vehicles with external oil cooler requirements
• Replacement needs after corrosion, cracking, or tank failure

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet size, and cooler connections before installation. This radiator is listed for 2016-2019 BMW X1, 2018-2019 BMW X2, 2014-2019 Mini Cooper John Cooper Works, 2016-2019 Mini Cooper Clubman John Cooper Works, and 2017-2019 Mini Cooper Countryman John Cooper Works. Confirm the vehicle uses an external oil cooler setup and match all hose and cooler interfaces to the original unit.

Quality Assurance

Koyorad manufactures OE-equivalent radiators using application-specific engineering and replacement-focused construction. The A13797 is built to meet the cooling and fitment requirements of the listed BMW and Mini applications.