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Mercruiser / Mercury / Mariner Lower Unit Bearing Assembly 135-400 HP 447-312
Mercruiser / Mercury / Mariner Lower Unit Bearing Assembly 135-400 HP 447-312
Mercruiser / Mercury / Mariner Lower Unit Bearing Assembly 135-400 HP 447-312
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Mercruiser / Mercury / Mariner Lower Unit Bearing Assembly 135-400 HP 447-312

Marsoni M251S
Sale price$36.97
Pay 4 payments of $9.24 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Mercruiser / Mercury / Mariner Lower Unit Bearing Assembly 135-400 HP 447-312ITEM#: 447 312 LOWER UNIT BEARING ASSEMBLY: MERCURY MARINER MERCRUISER 135 400 HP OEM#: 31 48939A2, 31 8M0146553, 48939, 48939A2, 8M0146553 BRAND: WSM FITMENTS: Make Model Year(s) Mariner ALL Mercruiser ALL Mercury 4 Cyl 4 Stroke 135 2008 2009 Mercury 4 Cyl 4 Stroke 150 2008 2014 Mercury 4 Cyl 4 Stroke 175 2008 2014 Mercury 4 Cyl 4 Stroke 200 2008 2014 Mercury 6 Cyl 2. 5L XS 200 2001 2006 Mercury 6 Cyl 3. 2283 Bore Verado 350 2009 2014 Mercury 6 Cyl
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.4 ★★★★★
Based on 1633 reviews
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Product Reviews
E
Verified Purchase
Elizabeth
Alexandria, US
★★★★★ 5
Came quickly as described!
The Grinders are very well made. I keep them right next to the stove, so they are used daily. The came quickly. Very easy to fill... You wont be disappointed !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
A
Verified Purchase
Ann Henson
Waukegan, US
★★★★★ 5
Small and perfect
This salt and pepper grinder set are perfect for what I wanted. They are small in size, easy to fill and grind the S&P perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2026
A
Verified Purchase
Anonymous
Massapequa, US
★★★★★ 5
Great Value!
Color: Tall Set - Black White
Better than anticipated. These are sturdy and work very well. They came with a little funnel to fill, but easy enough without it. They are attractive, I keep on top my stove as I have room. Grind well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 31, 2025
M
Verified Purchase
MM72
New York, US
★★★★★ 3
Defective coarseness adjuster
Color: Tall Set - Black White
These salt and pepper shakers are ok. According to the description of the product, you should be able to adjust the coarseness of the salt and pepper added to them, but that was not my case. The coarseness adjuster on the set I received is set to one position and there is no way of changing it. The grinders work well, but if you are looking to adjust the coarseness of your salt and/or pepper look for another grinder set.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
A
Verified Purchase
Amazon Customer
Port Orchard, US
★★★★★ 5
Works well and looks cute
Really nice set. Grind is fine and turn is easy. Highly recommend manual over battery operated ones.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026

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