Section 193 (Engine - 7.3L V8 Turbo Diesel): Description: Pistons
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, 2003 Ford Excursion, and 2003 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The pistons are made of aluminum alloy, fitted with an upper keystone compression ring, a lower rectangular compression ring and oil control rings.