Replacement propwasher for the DLE 20RA single 20cc engine.
Function: it is the propeller washer, which spreads the bolt clamping load against the hub or prop face.
The reason this ends up on an order: a deformed or cracked washer lets the clamping load go slack and the propeller work loose.
Fitting note: Fit new washers on reassembly and inspect for cracking around the bore.
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