CLEAN! 1984-2006 Mercury & Mariner Piston 9104A17 C# 767-7104A10 15 18 20 25 HP

We have taken the time to professionally clean and inspect this piston. We vapor blast the whole piston to remove all the build-up grease, grime, and carbon. This gives us a chance to fully inspect the piston that is now in like-new condition. We do this so you have a sound mind about the product you are buying, but to ensure that we are selling an excellent part that won’t damage your powerhead. We even clean out the ring grooves, so you can purchase this with confidence.

We differentiate pistons 2 ways. We sell them as “A” parts or “B” parts. “A” parts are essentially perfect. No wear whatsoever. They’re in like new condition. “B” parts are pistons that have a bit of minor wear. This may be a very small ding or a rub mark. They’re still in perfectly good condition and very usable, but they have an inconsequential mark of some kind. “B” pistons will be a little bit cheaper but are perfectly fine to use in an engine.

The piston in this listing is considered to be in "B" condition. This is because there are some minimal dings in the skirt as you can see in the picture, but nothing major enough to affect performance.