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Marinco Y504-2-30 EEL (2)30A-125V Female to (1)50A-125/250V Male Y Adapter Yello

Marsoni M251S
Sale price$136.50
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Marinco Y504-2-30 EEL (2)30A-125V Female to (1)50A-125/250V Male Y Adapter YelloOverview EEL "Y" Adapters These adapters are equipped with sealing collars and are for use in wet locations. Boat Side Female Connector: Attaches to boat inlet or cordset (2)30A 125V Locking w Sealing Collar System Dock Side Male Plug: Attaches to dockside receptacle or cordset (1)50A 125 250V LockingWARNING: This product can expose you to chemicals including di(2 ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer,
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4.4 ★★★★★
Based on 659 reviews
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Volodymyr Bilov
Louisville, US
★★★★★ 5
super delivery
Size: 5 Liter
excellent quality, super delivery
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
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Gearheaddaddy
Massapequa, US
★★★★★ 5
Black but don’t worry it is supposed to be. It works!
Size: 1 Liter
This stuff looks like used motor oil but don’t worry that is the molybdenum disulfide (MoS₂) which is black. This stuff in a small engine makes it smooth as silk. I used it all season in my leaf vacuum small engine. I could hear the difference. It was quieter and smoother.
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Reviewed in the United States on December 7, 2025
M
Verified Purchase
Matthew Vaughn
Natrona Heights, US
★★★★★ 5
High Quality Oil
Size: 5 Liter
Good quality oil! I was just buying the mos2 separate until now
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Reviewed in the United States on January 15, 2026
F
Verified Purchase
Francisco Antonio
Lowell, US
★★★★★ 5
Recomendado
Size: 5 Liter
Uno de los mejores aceite
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Reviewed in the United States on March 11, 2026
D
Verified Purchase
DanPurserMD
Waukegan, US
★★★★★ 5
Works just like the Mercedessource guy said it would.
Size: 5 Liter
After viewing a Mercedessource video (trusted Mercedes repair advice Youtuber and blogger) on which oil he liked for higher mileage Mercedes he pointed this out Semi-synthetic 10w-40 out. Called it “muddy” oil. Said it possibly helped with small oil seal leaks and seemed to slow oil loss in higer miles Mercedes. Also made the engines run more quietly. So I have been using in my wife’s high mileage Mercedes (185,000miles W211 2004 E500 4matic) which we baby and I work on. A true very high compression super car, everything he said at Mercedessource has turned out to be accurate. No more leaks. Quiet lifters. Cooler running. Wow. I had been using Mobil 1 full synthetic 0W-40 European Car Formula exclusively but tried this for the seal protection. Works great and no, it is not Mercedes spec but I will see when the harsh Utah winter hits. May switch to the Liqui-Moly 5W-40 Leichtlauf full synthetic (which does meet Mercedes 722.9 oil spec) for winter (I change the oil every 6 months regardless). Thanks for reading.
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Reviewed in the United States on July 12, 2018

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