Mercury / Mariner 30 / 40 Hp 2.565" Piston Ring Set 200-05 STD SIZE OE 39-18653A

Marsoni

M251S

$19.07

Get it in 3 business days with 1 day shipping. Friday, May 29

Mercury / Mariner 30 / 40 Hp 2.565" Piston Ring Set 200-05 STD SIZE OE 39-18653AITEM#: 200 05 PISTON RINGS MERCURY MARINER 30 40 HP 89 97 CROSS FLOW STANDARD OEM#: 39 18653A12 STD SIZE ONLY BRAND: WSM FITMENTS: Make Model Year(s) Mariner ALL Mercury 4 Cyl 2. 565 Bore Cross Flow 30 1989 1997 Mercury 4 Cyl 2. 565 Bore Cross Flow 40 1989 1997 NOTE: 2. 565" Make Model CC HP Year Mariner Mercury ELHPTO 40 1990 Mercury ELHPTO 40 1991 Mercury ELHPTO 40 1992 Mercury ELHPTO 40 1993 Mercury ELHPTO 40 1994 Mercury ELHPTO 40 1995 Mercury

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I’ve used this and only this in my 15 Scion FRS since I bought it . I used to change it every 5k but I retired and now it’s a once a year oil change with less than 5k per year. The car has never had any issues with this oil . Since NASCAR changes oil in the cars every 500 miles I don’t whine about changing it once a year. $40 for oil is better than $10k for another built motor

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Reviewed in the United States on May 24, 2026