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WSM Mercury / Mariner 30 / 40 Hp 2.565" Piston Ring Set 200-05-04 .010 OVERSIZE

Marsoni M251S
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WSM Mercury / Mariner 30 / 40 Hp 2.565" Piston Ring Set 200-05-04 .010 OVERSIZEITEM#: 200 05 04 PISTON RINGS MERCURY MARINER 30 40 HP 89 97 CROSS FLOW . 010 OEM#: 39 18653A12 NOTE: 2. 565" . 010 OVER SIZE 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
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4.5 ★★★★★
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APTYP
Omaha, US
★★★★★ 5
💯% Authentic NGK Made in Japan.
Got these for my 2016 Subaru Crosstrek. You can't go wrong with NGK, these are 💯% AUTHENTIC, and made in Japan, unlike other NGK plugs that may be sold by other sellers which could be made in Thailand. The Subaru Crosstrek is running like a brand new vehicle after I put these puppies in it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2025
B
Verified Purchase
Britton Home Improvement
Pawtucket, US
★★★★★ 5
buy these!!
these are legit original NGK, superior plugs, will buy again
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Reviewed in the United States on May 4, 2026
A
Verified Purchase
Anonymous User
Phoenix, US
★★★★★ 5
Worked like a charm
Worked like a charm. The box and packaging were adequate from keeping the gaps of the plugs from being squished.
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Reviewed in the United States on May 13, 2026
T
Verified Purchase
TKmps
Belleville, US
★★★★★ 5
Perfect!!
As I expected, no more to say only I'm happy I got it.
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Reviewed in the United States on April 29, 2026
T
Verified Purchase
Timothy Dettman
Bozeman, US
★★★★★ 5
Works great
Works great
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Reviewed in the United States on March 30, 2026

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