★★★★★ 5
Great product
Size: 12 fl. oz. (Pack of 1)
Noticeable difference in the first 50 miles .
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Reviewed in the United States on March 30, 2026
Mercury Mariner 135-220 HP Divider Plate Gasket 521-30, 27-90484A88, 27-14697A87
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Mercury Mariner 135-220 HP Divider Plate Gasket 521-30, 27-90484A88, 27-14697A87ITEM#: 521 30 GASKET, DIVIDER PLATE MERCURY MARINER 135 200 HP OEM#: 27 904841 BRAND: WSM FITMENTS: Make Model Year(s) Mariner ALL Mercury 6 Cyl 3. 125 Bore 2L 135 1989 1990 Mercury 6 Cyl 3. 125 Bore 2L 150 1978 1990 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 Bore 2. 4L 200 1978 1982 Mercury 6 Cyl 3. 375 Chrome Bore 2. 4L 175 1983 1990
Quick Dispatch:
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- Express: 1-2 business days
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4.5 ★★★★★
Based on 473 reviews
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Product Reviews
★★★★★ 5
Great product!
Size: 12 fl. oz. (Pack of 1)
Would recommend pouring oil into container after pouring in and shaking it up, great additive recommended by some old folks but I would have to say it’s just thick as molasses. Used in 2016 FORD F150 5.0 V8
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Reviewed in the United States on April 3, 2025
★★★★★ 5
Great product!
Size: 12 fl. oz. (Pack of 1)
My Dad believed in Bardaul and I do to!
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Reviewed in the United States on January 22, 2025
★★★★★ 5
Inigualable protector del motor
Size: 12 fl. oz. (Pack of 1)
Producto extraordinario para el motor
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Reviewed in the United States on April 26, 2024
★★★★★ 5
Great for High Mileage vehicles
Size: 12 fl. oz. (Pack of 1)
Added into my 2014 Dodge Grand Caravan with 100k miles before a family trip and eliminated knock, slow starts and improved our gas mileage by about 10% I think! super easy to add to the oil and very happy with results.
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Reviewed in the United States on April 18, 2024
