Ring Set, Piston 1.5mm - Mercury / Mariner 150-200hp 2.5L, Sport Jet 210-240hp

As low as $28.99
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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 the size desired from the dropdown (under "product 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.


Mercury / Mariner

150-200hp 2.5L w/1.5mm Rings

Sport Jet

210-240hp 2.5L

May fit additional models to those listed above. Please DO NOT order based solely on application info above. You MUST compare the oem number of the part for your engine to those listed below to ensure correct fitment of this part for your application! Failure to order this way will likely lead to the wrong part being ordered!

Replaces: 39-815515A12, 39-815268A4, 14980, 481

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