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Sierra O-Ring. Mercruiser/OMC
Sierra O-Ring. Mercruiser/OMC
Sierra O-Ring. Mercruiser/OMC
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Sierra O-Ring. Mercruiser/OMC

Marsoni M251S
Sale price$26.00
Pay 4 payments of $6.50 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Sierra O-Ring. Mercruiser/OMCI. D.: 1. 875" or 47. 6mm Width: 0. 135" or 3. 4mm Fits MCM MIE GM V 6 & V 8 engines, for thermostat housing with flat cover plate Mercruiser Stern Drive 25 30224 OMC Stern Drive 310327
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Your Sierra O-Ring. Mercruiser/OMC orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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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.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 1476 reviews
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Product Reviews
C
Verified Purchase
Chris
Grantham, US
★★★★★ 4
4 lefts vs 2 rights
Size: Medium, Color: (001) Black / Black / Castlerock, Size: Medium, Color: (001) Black / Black / Castlerock
I ordered a set of three. I ended up with four left socks and two right socks lol. Granted it doesn’t matter unless you’re OCD. JEEZ. Love the socks but not the attention to detail the sock company did on matching left/right marked socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
J
Verified Purchase
Jill
Natrona Heights, US
★★★★★ 5
My favorite socks
Size: Medium, Color: (001) Black / Black / Castlerock
I love love, love the left and right socks one has an L one has an R and they fit so well and they’re so comfy for running jogging or walking. They are my favorite socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2026
V
Verified Purchase
vbgirlfla
Chelsea, US
★★★★★ 5
Hold up to tough wear - definitely recommend
Size: X-Large, Color: (001) Black / Black / Castlerock
These are my teens favorite socks. We've ordered multiple sets. Given that he tends to wear then as slippers I am really impressed with how they hold up. The extra large size is great for bigger feet. They wash well and I didn't notice any shrinkage, fading or pilling. This set is going to college with him.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
J
Verified Purchase
Jana
San Leandro, US
★★★★★ 5
Good quality
Size: Large, Color: (400) Royal / White / Mod Gray
To big! I am female size 9 and Amazon was recommending for me size L. Yes, my socks is wearing my boyfriend. I need to buy smaller size
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 13, 2025
S
Verified Purchase
September Hall
Los Angeles, US
★★★★★ 5
Great no show socks
Size: Small, Color: (725) Oxford Brown / Oxford Brown / Black
Very comfortable and perfect fit for my small feet. I love the full coverage sock feel with a totally no show sock.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026

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