Description
Piston Ring Set
These are the same or better than OEM! These are Riken rings!!
These rings will fit OE style pistons…will not fit Wiseco Pistons!
Standard Bore size is 3.501″
If you need the pistons for this engine, we carry those too!
These rings are sold by the pair (2 rings for one piston) and both rings have the same bevel
These rings are usually available in STD Bore, .015″, .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
115-175hp 2.5 Liter Optimax
To order, select your desired options, then enter the quantity and click “add to cart”. Most standard and oversize options 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.
Replaces: 39-853306A12, 39-857120T12, 39-857121T12
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