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Need replacement spark plug for 4.5 hp Tecumseh; model number YTPXS

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In my shop, I use Autolite brand plugs. Your engine would have come originally with a #255 or equivilent. Most shops will upgrade that plug to a #458. It is slightly hotter and gives a more efficient burn. You can also use a Champion J19LM or an NGK B4LM.
Good luck!

Posted on Oct 15, 2010


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