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MERCURY/MARINER 105 - 200 HP '78-'05 .040 SIZE - 200-30-07, 39-93481A, 3.165"

Marsoni M251S
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MERCURY/MARINER 105 - 200 HP '78-'05 .040 SIZE - 200-30-07, 39-93481A, 3.165"ITEM#: 200 30 07 PISTON RINGS MERCURY MARINER 105 200 HP 78 05 . 040 OVER OEM#: 18 3922, 39 78918A12, 39 78918A4 NOTE: 3. 165 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
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4.8 ★★★★★
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Sean R.
Birmingham, US
★★★★★ 5
Excellent quality
Great quality kit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025
J
Verified Purchase
Jospeh C Farrell
Cuba, US
★★★★★ 5
Boating maintenance
Perfect replacement parts for your scheduled maintenance, great price
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Reviewed in the United States on December 25, 2025
J
Verified Purchase
Jeff Sylvester
Birmingham, US
★★★★★ 5
worked great at fair price
works fine on my 1994 volvo penta 3.0 GL the main gasket was wrong, but my 3.0 GL does not have a gasket, the other parts appear to be universal
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Reviewed in the United States on June 5, 2025
G
Verified Purchase
gmarlin
Lowell, US
★★★★★ 4
Good fit
Worked well with no problems.
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Reviewed in the United States on February 24, 2026
A
Verified Purchase
andranik g.
New York, US
★★★★★ 5
Great replacement kit
Called around for quotes to get them replaced and everyone was quoting over $2k just for bellows. Figured I’d give it a try. The rubber is good quality and feels soft. Time will tell but this is an easy job if you’re mechanically inclined. Make sure you replace the plastic water pickup fitting while you’re at it. Found mine to be cracked on disassembly and had to wait for a new one. Should be a easy 3-4 hour job if your not doing the bearing and only doing bellows
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Reviewed in the United States on August 26, 2024

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