★★★★★ 5
recommend
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
great price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
Mercury 200-300 HP Plenum Gasket 27-804679004, 804679004, 27-804679 3, 516-31-01
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Mercury 200-300 HP Plenum Gasket 27-804679004, 804679004, 27-804679 3, 516-31-01ITEM#: 516 31 01 GASKET, PLENUM MERCURY 200 300 HP DFI EFI 00 18 OEM#: 27 804679, 27 804679004, 27 8046791, 27 8046792, 27 8046793 BRAND: WSM FITMENTS: Make Model Year(s) Mercury 6 Cyl 3. 625 Bore 3L EFI 200 2003 2008 Mercury 6 Cyl 3. 625 Bore 3L EFI 225 2002 2008 Mercury 6 Cyl 3. 625 Bore 3L EFI 250 2002 2008 Mercury 6 Cyl 3. 625 Bore 3L Pro Max 300 2001 2005 Mercury 6 Cyl 3. 6265 Bore 3L Optimax 200 2000 2018 Mercury 6 Cyl 3. 6265 Bore 3L Optimax
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- Fast: 2-3 business days
- Express: 1-2 business days
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4.8 ★★★★★
Based on 401 reviews
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Product Reviews
★★★★★ 4
Does not come with a pump.
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
The Good: Changing the fluid in the lower unit is a very easy DIY job. This can save you hundreds of dollars each year by doing it yourself.
The Bad: You need a special pump to change the oil, and sometimes it comes with the gear lube. Unfortunately this product did not come with it. Luckily my neighbor had an extra one from changing the lube a different boat laying around and was able to use that.
The Ugly: If you have to go get the pump, that could cost a few extra dollar but is just an extra nuisance. The pumps are interchangable but you just need to clean it between uses (DON'T MIX DIFFERENT OIL BRANDS)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 28, 2025
★★★★★ 5
Works fine in outdrive
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Good gear oil. Purple dye for leak detection
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026
★★★★★ 5
Good Quality
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Always the best quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
★★★★★ 5
Looks well made
Looks well made. Rubber seems pliable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
