The Mishimoto R2171-AT is a replacement radiator for a 1999–2003 7.3 Powerstroke. It is the stock-style core, plastic tanks on an aluminum core. The all-aluminum performance radiator is MMRAD-F2D-99.

The core is two-row, about 30.25 by 26.5 by 2.25 inches, with 1-3/4-inch inlet and outlet. The AT cooler is in the tank. It drops into the factory mounts and the factory shroud. The warranty is lifetime. The same core fits the 5.4 and the 6.8 in these trucks.

It fits 1999–2003 F-250 through F-550 and 2000–2003 Excursion trucks with the 7.3.

Fitment

• 1999–2003 Ford 7.3L Powerstroke
• Super Duty and Excursion
• Plastic tanks, aluminum core
• Two-row
• Automatic transmission cooler
• Lifetime warranty

A split tank or a clogged core is what this replaces. A tuned truck that tows hard wants the aluminum radiator. Flush the system if the coolant is muddy.