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WSM Piston Rings Mercury / Mariner 105 - 200 Hp 78-05 STD 200-30, 39-93481A12

Marsoni M251S
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WSM Piston Rings Mercury / Mariner 105 - 200 Hp 78-05 STD 200-30, 39-93481A12Item#: 200 30 Piston Rings Mercury Mariner 105 200 Hp 78 05 Standard OEM#: 39 93481A12 Note: 3. 125" Brand: WSM FITMENTS: Make Model Year(s) Mariner ALL Mercury 6 Cyl 3. 125 Bore 2L 135 1986 2000 Mercury 6 Cyl 3. 125 Bore 2L 150 1978 2005 Mercury 6 Cyl 3. 125 Bore 2L 175 1976 1981 Mercury 6 Cyl 3. 125 Bore 2L XR2 150 1986 1988 Mercury 6 Cyl 3. 375 Bore 2. 4L 175 1981 1982 Mercury 6 Cyl 3. 375 Chrome Bore 2. 4L 175 1983 1999 Mercury 6 Cyl 3. 375 Steel
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Michael Rhodes
Houston, US
★★★★★ 5
Outboard thermostat
Works fine. A little pricey but better to buy the best than risk a cheap failure and destroy your engine like i did once.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
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carlos febus
Carnegie, US
★★★★★ 5
Good
Good
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Reviewed in the United States on April 27, 2026
W
Verified Purchase
Will Rhoden
San Leandro, US
★★★★★ 5
Works as it should
Works as it should
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Reviewed in the United States on March 24, 2026
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Verified Purchase
kelly napper
Boise, US
★★★★★ 4
Four Stars
Just what I needed
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Reviewed in the United States on October 14, 2016
P
Verified Purchase
Paul Schneeman
Charlottesville, US
★★★★★ 5
Functioned as advertized.
Installed these in my Whalers 96 200 Offshore. No issues, used permatex gasket compound on aluminum engine parts after cleaning with fine brass wire wheel.
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Reviewed in the United States on November 20, 2024

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