Piston ID Help?


New member
Ordered a replacement 880 piston from Hauck today. The new one that arrived is on top, mine are on the bottom.

Anyone have any ideas?

I was trying to make a hillclimb event on the weekend, but that looks to be out now. I have another complete set of unported (hauck oem) 880 jugs, and also a matching set of 2-ring pistons that could be installed, but I am all tuned to the current configuration. Hate to take 3 steps backwards over one piston.


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Hauck tells me the lower piston is an early batch of pistons (manufacturer unknown) while to top is a late batch (Wiseco). I need to make some measurements and weight them, but looks like I will be swapping all four : (