Wiseco 3116 Series Piston Kits for Yamaha Outboards
Each kit includes a forged piston, rings, wrist pin, and circlips.
Our prices include shipping in the continental US.
Tip: 3116 is the new part number for the 3016 series. The applications
are the same and it's okay to mix and match them.
- 3116PS - Std. (3.544" bore) - Port Side
- 3116SS - Std. (3.544" bore) - Starboard Side
- 3116P2 - .020" (3.564" bore) - Port Side
- 3116S2 - .020" (3.564" bore) - Starboard Side
- 3116P4 - .040" (3.584" bore) - Port Side
- 3116S4 - .040" (3.584" bore) - Starboard Side
- 3116P6 - .060" (3.604" bore) - Port Side
- 3116S6 - .060" (3.604" bore) - Starboard Side
Price Per Kit: $109
B1028 Wrist Pin Bearings: $15.50 each
Please check your bore size before ordering! A 25%
restocking fee will be applied to all piston returns
even if exchanged for a different bore size. This is because too many
people guess which size they'll need, only to find out later that they (or their
machinist) were wrong. Sorry, but this also applies to "but my
machinist said I needed this size piston, but then said it had to be bored more
Determining Your Bore Size
The bore must be within .001" of the listed bore specs above. Example:
If a bore size is listed as 3.395", then the acceptable range is 3.395"
If you're replacing standard size pistons, you just need to have the cylinders
checked to be sure that they're within spec, both in bore diameter and out-of-round. The
cylinder should be deglazed before installing the new kits if the cylinder isn't
If you're having one or more damaged cylinder bored for an oversize piston,
the cylinder should be bored to the point where it is perfectly round, with no
surface damage. Then, you can measure it to have a better idea of which
oversize is right for you. Some machinists won't finish hone your block until
you supply them with the pistons, but they can still bore out the damage and
give you a measurement.