★★★★★ 5
Perfect fit
Size: 26"+16"+13"
Good quality. Fits well. Excellent replacement equipment for OEM
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
WSM Mercury 75- 85 Hp 4 Cylinder Power Head Gasket Kit 500-209 OE 27-73645A8
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
WSM Mercury 75- 85 Hp 4 Cylinder Power Head Gasket Kit 500-209 OE 27-73645A8ITEM#: 500 209 POWERHEAD GASKET KIT: MERCURY MARINER 75 85 HP 4 CYL 76 86 OEM#: 18 4354, 27 73645A32, 27 73645A87 BRAND: WSM FITMENTS: Make Model Year(s) Mariner ALL Mercury 4 Cyl 2. 875 Bore Cross Flow 75 1984 1986 Mercury 4 Cyl 2. 875 Bore Cross Flow 80 1978 1983 Mercury 4 Cyl 2. 875 Bore Cross Flow 85 1976 1977 For more information on our policies please click the Shipping and Payments tab or to ask a question click our store name for our home page.
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4.1 ★★★★★
Based on 1201 reviews
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Product Reviews
★★★★★ 5
Fits Odyssey perfectly
Perfect fit for the Odyssey! Great price and reliable brand. Very easy to install can't complain!
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Resonable priced.
Good quaity and a resonable price and I will buy it again when needed.
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Good Value
Perfect fit, good price.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Great price and delivered on time.
A good filter, delivered quick and cost less than in store shopping and if it’s in stock.
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Reviewed in the United States on March 26, 2026
