Koyorad A13838 Radiator

Koyorad A13838 Radiator Overview

The Koyorad A13838 radiator is an OE-equivalent replacement built for BMW cooling systems that need precise fitment and dependable heat transfer. It is engineered with an aluminum core and integrated engine and transmission oil coolers to match the demands of performance-oriented applications.

Compatible With 2016-2020 BMW M2, 2017-2020 BMW 440i, and related 440i xDrive and Gran Coupe models, this Koyorad Radiator is a direct-fit solution for vehicles equipped with the listed auxiliary cooler and M Package configurations. The A13838 part number is also referenced by Bosch 13838 and BM3010195.

Key Features

• OE-equivalent radiator from Koyorad
• Aluminum core with plastic tanks
• Single-row core design
• Core dimensions: 39.5 in. wide, 7.6875 in. high, 1.0625 in. thick
• Includes engine oil cooler with 3-plate design
• Includes transmission oil cooler with 4-plate design
• Inlet and outlet diameter: 0.625 in.
• Built for BMW cooling system applications requiring integrated oil cooling

Detailed Description

Koyorad Radiator A13838 is designed as a replacement radiator for BMW models that use integrated engine and transmission oil cooling. The aluminum core supports efficient heat exchange, while the plastic tank construction follows common OE-style radiator design. With a 39.5-inch core width and 1.0625-inch core thickness, this unit is sized for the specified BMW 440i and M2 applications listed below.

Koyorad focuses on replacement radiators that follow original-equipment specifications closely, helping ensure proper fit, hose connection alignment, and cooling-system integration. For shoppers searching for a BMW M2 radiator replacement or a 2017-2020 BMW 440i radiator with oil cooler, the A13838 provides a direct application match.

Vehicle Fitment

• Fits 2017-2020 BMW 440i, N/A, Aux Cooler / M Package; Koyorad Radiator
• Fits 2017-2020 BMW 440i Gran Coupe, N/A, Aux Cooler / M Package; Koyorad Radiator
• Fits 2017-2020 BMW 440i xDrive, N/A, Aux Cooler / M Package; Koyorad Radiator
• Fits 2017-2020 BMW 440i xDrive Gran Coupe, N/A, Aux Cooler / M Package; Koyorad Radiator
• Fits 2016-2018 BMW M2, N/A, Aux Cooler; Koyorad Radiator

Common Replacement Reasons

• Cracked or leaking radiator tanks
• Reduced cooling performance from a worn core
• Transmission or engine oil cooler leakage
• Overheating concerns in BMW 440i or BMW M2 cooling systems
• Need for a direct-fit radiator replacement with integrated coolers

Installation Notes and Tips

Verify the vehicle’s cooling package, including Aux Cooler and M Package requirements, before ordering. Confirm inlet and outlet size, oil cooler configuration, and radiator dimensions against the original unit. Replace coolant with the correct BMW-approved specification and inspect hoses, clamps, and adjacent cooling components during installation.

Because this radiator includes integrated engine and transmission oil coolers, careful line and seal inspection is important during removal and installation. The Koyorad A13838 should be matched to the exact application listed for BMW 440i and BMW M2 models.

Quality Assurance

Koyorad manufactures OE-equivalent radiators using application-specific engineering and replacement-focused design standards. The A13838 part number is built to serve the listed BMW applications with the cooling-system layout and cooler integration required for proper operation.