18-4100 Sierra 1986-98 Piston 85 88 90 100 110 112 + HP Replaces Johnson 396588

Simple as it is, a piston is one of the most important items inside an engine. To ensure the piston is in good usable condition, we take the extra steps with each piston we sell:

• Professionally cleaned and inspected.
• All carbon complete removed.
• Make sure the is no raised dings.

Matched against the standards of our competitors who pull it out of the engine and throw it in a bucket, the piston you receive from us won’t even compare.  Purchase this piston and as many as you need with absolute confidence!  

There is some minor rubmarks on the side of the piston, but nothing that will affect the performance. This will come with 2 rings, 1 wrist pin, 2 circlets, 2 retainers, and 28 needles. 

Please note that we will not accept returns for this item. Please be absolutely sure this is the correct one for your motor prior to purchasing.

Location: Southcentral Outboards, Altamont, Illinois

We have provided this cross-reference with the resources we have available in regards to fitment. This most likely will not fit every model for the years and horsepowers we have listed. We urge you to make sure this is the exact item you need by matching the part number to what is required for your motor. If you need help doing so, please contact us prior to purchasing and we would be happy to help!