Koyorad A2171 Radiator

Koyorad A2171 Radiator Overview

The Koyorad A2171 radiator is an OE-equivalent replacement radiator built for Ford Super Duty and Excursion applications. It combines an aluminum core with plastic tanks and includes an internal transmission oil cooler for direct replacement service on supported vehicles.

Compatible With 1999-2004 Ford F-250 Super Duty, 1999-2004 Ford F-350 Super Duty, 2000-2003 Ford Excursion, and 2004-2005 Ford Excursion. The Koyorad Radiator line focuses on replacement fit and factory-style cooling performance for vehicles that need a straightforward radiator service part.

Key Features

• OE-equivalent radiator replacement from Koyorad
• Aluminum core with plastic tank construction
• 2-row core design for cooling capacity
• Core dimensions: 30.5 in. wide, 26.5 in. high, 1.4375 in. thick
• 1.75 in. inlet and 1.75 in. outlet diameters
• Internal transmission oil cooler included
• Transmission oil cooler diameter: 1.625 in.
• Built for Ford F-250 Super Duty, Ford F-350 Super Duty, and Ford Excursion applications

Detailed Description

Koyorad A2171 is a radiator replacement engineered for 1999-2004 Ford F-250 Super Duty and F-350 Super Duty models, plus 2000-2003 and 2004-2005 Ford Excursion applications. It uses an aluminum core with plastic end tanks and a 2-row layout to match the factory-style cooling system configuration on these trucks and SUVs. The integrated transmission oil cooler supports vehicles equipped with automatic transmission cooling through the radiator assembly. As part of the Koyorad Radiator product line, this unit is built around OE-style replacement requirements for proper fitment and serviceability. This part number, A2171, is a direct-fit radiator option for owners replacing a worn, leaking, or restricted cooling assembly on these Ford platforms.

What This Radiator Helps Address

• Coolant leaks from cracked tanks or aging radiator seams
• Restricted coolant flow caused by internal radiator buildup
• Transmission fluid cooling issues related to a failing internal cooler
• Overheating concerns tied to reduced radiator efficiency
• Replacement needs after corrosion, impact damage, or plastic tank fatigue

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet sizes, and transmission cooler connections before installation. Drain the cooling system fully, inspect hoses and clamps, and flush the system if contamination is present. On Ford F-250 Super Duty, Ford F-350 Super Duty, and Ford Excursion applications, confirm automatic transmission cooler line routing and refill with the correct coolant mixture after installation. Part number A2171 should be matched to the vehicle’s year and cooling-system configuration before service begins.

Quality Assurance

Koyorad states that its radiators are built as OE-equivalent replacements using technical manufacturing experience focused on getting the job done correctly on the first installation. The Koyorad A2171 radiator reflects that replacement-focused approach for Ford cooling-system service.