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WSM Mercruiser / Mercury / Mariner 3.5-60 Hp Oil Seal '70-'14 550-33, 26-66301

Marsoni M251S
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WSM Mercruiser / Mercury / Mariner 3.5-60 Hp Oil Seal '70-'14 550-33, 26-66301ITEM#: 550 33 CRANKSHAFT OIL SEAL: MERCURY MARINER 3. 5 60 HP 70 14 OEM#: 26 66301 LOWER BRAND: WSM FITMENTS: Make Model Year(s) Mariner ALL Mercury 1 Cyl 3. 5 1983 1985 Mercury 1 Cyl 3. 6 1980 1982 Mercury 1 Cyl 4. 5 1975 1985 Mercury 2 Cyl 2. 875 Bore Cross Flow 40 1980 1983 Mercury 2 Cyl 7. 5 1970 1986 Mercury 2 Cyl 9. 8 1970 1985 Mercury 3 Cyl 2. 955 Bore Looper 50 1991 1997 Mercury 3 Cyl 2. 955 Bore Looper 60 1991 1997 Mercury 3 Cyl 2. 992 Bore
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4.4 ★★★★★
Based on 87 reviews
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Product Reviews
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Verified Purchase
Crimson
Lowell, US
★★★★★ 5
Outboard is Cooling
The repair kit arrived on time as scheduled. The kit contained everything needed to replace the Mercury 175 OptiMax impeller. The engine is cooling now and we are back on the water without issue. Easy replacement.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 5, 2023
Y
Verified Purchase
Yozhik
Boise, US
★★★★★ 5
Flexible PVC Cable
Size: 2 Gauge 10FT
If you like the slick, shiny surface of PVC but want the flexibility of welding cable, this is a pretty good option. Easy to shape and makes solid crimps. One of my favorites.
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Reviewed in the United States on April 28, 2026
J
Verified Purchase
JW
Waukegan, US
★★★★★ 5
Good quality for a good price!
Size: 6 Gauge 15FT, Size: 6 Gauge 15FT
Good value for the quality of these copper cables. Cut them to the length I needed and put a copper eyelet on one end. Wire size works good between my Victron solar charge controller and the batteries. Wire gauge will be able to handle the wattage much better than what I was using. They look much more professional than the old cables I was using also!
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Reviewed in the United States on December 15, 2025
A
Verified Purchase
Amazon Customer
Omaha, US
★★★★★ 5
Be safe and always calculate the gauge wire are you need, don’t cut corners.
Size: 4 Gauge 10FT
Good quality solid copper 4 Gauge wires in red and black. Avoid aluminum wiring that has copper plating so looks like solid copper but can be dangerous if used in heavy load applications. Copper is expensive but required if amperage is high.
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Reviewed in the United States on February 8, 2026
J
Verified Purchase
Jenaro Garcia
Phoenix, US
★★★★★ 5
Good
Size: 1/0 Gauge 10FT
Good item
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Reviewed in the United States on April 14, 2026

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