Replacement piston pin for the DLE 20RA single 20cc engine.
Function: it is the piston pin (wrist pin), on which the connecting rod pivots inside the piston.
The reason this ends up on an order: a worn pin allows the rod to rock and is a source of knocking on a high-hour engine.
Fitting note: Check the pin and the piston boss for wear, and renew the retaining clips.
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