Description
Piston Ring
Standard Bore Size is 3.500″
These rings measure 1.5mm thick. Please measure your existing rings (or compare OEM numbers below) as some engines use these 1.5mm while others use 2mm rings.
These are the same or better than OEM! These are Riken rings!!
Sold by the pair (2 rings for one piston)
These rings will fit OE style pistons…will not fit Wiseco Pistons!
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
150-200hp 2.5L w/1.5mm Rings
Sport Jet
210-240hp 2.5L
Replaces: 39-815515A12, 39-815268A4, 14980, 481
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