FIG. 1 is an isometric view of a first engine piston.
FIG. 2 is a top view thereof.
FIG. 3 is a bottom view thereof.
FIG. 4 is a front view thereof, which is the same as a rear view thereof; and,
FIG. 5 is a right side view thereof, which is the same as a left side view thereof.
The broken lines are for purposes of illustrating portions of the engine piston that form no part of the claimed design.
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