Koyorad A13837 Radiator

Koyorad A13837 Radiator for Jeep Wrangler

The Koyorad A13837 radiator is an OE-equivalent replacement built for 2018-2021 Jeep Wrangler applications with inverter cooling needs. It combines an aluminum core with plastic tanks and integrated engine and transmission oil coolers for direct-fit cooling system service.

Key Features

• Fits 2018-2021 Jeep Wrangler, N/A, with inverter
• Aluminum core with 1-row construction
• Core dimensions: 20.6875 in. height x 20.6875 in. width x 0.625 in. thickness
• Includes engine oil cooler with 3-plate design
• Includes transmission oil cooler with 4-plate design
• Inlet and outlet diameters: 0.8125 in.
• Plastic tank construction for OE-style replacement fitment
• Koyorad A13837 radiator cross-references Quality-Built 13837 and CH3011100

Product Details

Koyorad Radiator A13837 is part of Koyorad’s radiator line focused on OE-equivalent replacement cooling components. For Jeep Wrangler owners, this radiator provides the core size, cooler integration, and connection points needed for a direct replacement in supported 2018-2021 models. The aluminum core supports efficient heat transfer, while the integrated engine oil cooler and transmission oil cooler simplify replacement of a worn or leaking radiator assembly.

Compatible With 2018-2021 Jeep Wrangler, N/A. This part number, A13837, is a practical choice when replacing a radiator that includes both engine and transmission cooling circuits in the same assembly.

Common Problems This Part Can Address

• Coolant leaks from a damaged radiator tank or core
• Overheating caused by restricted or aging radiator passages
• Transmission fluid temperature issues related to a failing cooler section
• Engine oil cooling concerns tied to a compromised integrated oil cooler
• Fitment issues after replacing a radiator with the wrong cooler configuration

Installation Notes and Tips

Verify the existing radiator’s core dimensions, inlet and outlet sizes, and cooler configuration before installation. Confirm that your Jeep Wrangler matches the listed 2018-2021 fitment and inverter application. Transfer or reconnect all hoses, lines, and mounting points according to the vehicle’s cooling system layout, and refill and bleed the system carefully after installation.

Quality Assurance

Koyorad builds OE-style replacement radiators using application-specific engineering and manufacturing experience. The A13837 radiator is specified as an OE-equivalent replacement for the listed Jeep Wrangler applications, with integrated cooling features matched to the original design.