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I picked up a Toro Grass Trimmer for nothing since it would not start. It seemed like never used. After going thru everything, I took the head/cylinder off to see that the piston was scored. It seems like the a small piece of one of the two rings must have broke off and caused the scoring. I would normally think a piece would have come from the exhaust, but it is in perfect shape and clean. The cylinder seems to not really be scored that much, so I just thought I would get a new piston and ring set and see if it works. But after looking up many part sites, I seem that you cannot purchase the piston/rings separately or find out the part numbers. I even contacted Toro but they said to just contact a dealer.

Does anyone know where I can find the exact piston/rings to get for this trimmer? Or the equivalent? The trimmer info is below right from the label.

Toro
Model 51955
S/N 311020102
Mfg Date 12-14-11
25.4cc
Engine/Evap. Family BHCPS.0254TA

Thanks for any help.
 

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That unit is made for Toro by Homelite. Homelite does not list any internal engine parts available for this unit, just the complete power head assembly. It's likely a Chinese vended unit, and I have found most to be disposable with no repair parts available.
 
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