Piston Ring Set

Standard Bore Size: 2.992″

These are the same or better than OEM! These are Riken rings!!

These rings will fit OE style pistons…will not fit Wiseco Pistons!

If you need the pistons for this engine, we carry those too!

These rings are sold by the pair (2 rings for one piston).

These rings are usually available in STD Bore, .010″, .015″, .020″, .030″ and .040″ Oversize. To order, select your desired options, then enter the quantity and click “add to cart”. Most standard and oversize rings are in stock however some sizes may be on a short backorder from time to time. Please don’t hesitate to contact us for assistance.

Fits

Mercury / Mariner

30hp 2 cyl 1994-2007
40hp 2 cyl 1994-2007
50hp 3cyl 1998-2007
60hp 3 cyl 1998-2007

Replaces: 831255A6, 821695A6