Part: 44mm piston kit - includes wrist pin 

Replaces Part # 503 89 96 03 503899603

Condition: new old stock from closed out dealer. 

Fits: Husqvarna 351, 350 Jonsered 2150, 2149 Turbo. Some saws have 45mm bores, so make sure your saw has the 44mm bore prior to ordering.