Koyorad A13641 Radiator

Koyorad A13641 Radiator Overview

The Koyorad A13641 radiator is an OE-equivalent replacement built for dependable cooling performance in select Chrysler minivan applications. It uses an aluminum core with plastic tanks and is sized to match the original cooling system layout for a direct-fit service replacement.

Compatible With 2017-2021 Chrysler Pacifica and 2020 Chrysler Voyager applications listed below, this radiator is a practical choice when replacing a leaking, damaged, or inefficient factory unit. The Koyorad Radiator line focuses on replacement parts engineered to meet original-equipment expectations for fit and function.

Key Features

• Part number: A13641
• Aluminum core construction for efficient heat transfer
• Single-row core design
• Plastic tank material
• Core dimensions: 27.75 in. height, 20.1875 in. width, 0.875 in. thickness
• Inlet diameter: 1.5625 in.
• Outlet diameter: 1.5625 in.
• OE-equivalent replacement from Koyorad

Detailed Description

Koyorad A13641 is a replacement radiator engineered for Chrysler cooling system service where original fit and thermal performance matter. The aluminum core and single-row layout are designed to support efficient coolant flow, while the plastic tank construction follows common OE radiator design for the listed vehicles. If you are searching for a 2017-2021 Chrysler Pacifica radiator or a 2020 Chrysler Voyager radiator, this part number provides a direct-reference option for those applications. Koyorad A13641 is also a useful search term for buyers comparing OE-style radiator replacements by size and connection dimensions.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Vehicle Fitment

• Fits 2017 Chrysler Pacifica, N/A.
• Fits 2018-2021 Chrysler Pacifica, N/A, w/o Tow; External Oil Cooler.
• Fits 2020 Chrysler Voyager, N/A, w/o Tow; External Oil Cooler.

Common Problems This Radiator Can Address

• Coolant leaks from a cracked or aging radiator
• Overheating caused by reduced heat dissipation
• Damaged core fins or tank failure from road debris or wear
• Temperature instability from a restricted or inefficient radiator
• Replacement needs after corrosion or internal blockage

Installation Notes and Tips

Verify the vehicle configuration before ordering, especially tow package and external oil cooler requirements. Confirm inlet and outlet hose sizes, mounting points, and overall core dimensions against the original radiator before installation. Flush the cooling system, inspect hoses and clamps, and refill with the correct coolant specification after replacement.

Quality Assurance

Koyorad manufactures OE-equivalent radiators using application-specific engineering and replacement-focused construction. The A13641 is built to align with the fitment and dimensional requirements of the listed Chrysler Pacifica and Voyager applications.