SKU: 55815321671

Sierra 18-21001 MerCruiser Alpha & Bravo Gimbal Bearing

$96.38 $107.09
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  • USA
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Ships within 48 hours · Estimated delivery Oct 6 - Oct 11

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Description

Sierra 18-21001 MerCruiser Alpha & Bravo Gimbal BearingSierra Marine 18 21001 Mercruiser Gimbal Bearing Non greasable Mercruiser gimbal bearing from Sierra Marine. Sierra engine parts are designed to meet or exceed OEM requirements. Fits MC 1, R, MR, and Aplha 1974 97, Gen II Aplha 1991 97, Bravo IIIIII 1988 95 Replaces Mercruiser Stern Drive 30 879194A02 30 60794A4 30 60794B4 30 60794A2 Includes 1 Permalube gimbal bearing 1 Grease passage plug Installation Instructions for Sierra Gimbal Bearings When

Sierra 18-21001 MerCruiser Alpha & Bravo Gimbal Bearing
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 55815321671

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4.6 ★★★★★
Based on 1910 reviews
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Product Reviews
J
Verified Purchase
Joey
San Leandro, US
★★★★★ 5
Very comfy
Size: X-Large, Color: White
I'm a size US Mens 14 with huge calves. Finding comfortable crew socks can be somewhat difficult. These are extremely comfortable, very stretchy and soft. Very worth the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 4, 2025
S
Verified Purchase
SG
West Palm Beach, US
★★★★★ 5
I use these exclusively for when I'm hiking, cycling and walking ( exercising )
Size: X-Large, Color: Black
5.7.2019 Update: I have probably five packs of 3 of these socks. Can't explain it but recent pairs I've been using have lasted longer than previous two packs ( 6 socks )... So I'm going to get some more... They are my #1 go to sock for cycling, hiking, climbing, walking ( serious, training, speed, distance )... 10.30.19: I use these exclusively for when I'm hiking, cycling anqd walking ( exeqrcising )... They are light, comfortable, keep feet dry, cool & comfortable... They don't shift around on feet. They stay put once put on and running, climbing or cycling shoes are put on and laced up or ratched... I do a lot of hill climbing and also use on terrain where there's lots of long periods ( hours ) going up & hours going down... They don't appear to be very durable, get holes in toe or holes in heels, but 3 pack is relatively inexpensive so I continue to buy them. I do not use them for everyday casual wear because they would wear out very quickly compared to other similar sockets...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 30, 2018
C
Verified Purchase
Chris
Omaha, US
★★★★★ 4
These socks are just OK. One arrived with a ...
These socks are just OK. One arrived with a hole (easily sewn up, but kind of bummed about that). I prefer the Under Armour Resistor socks - they have support built into the socks that you actually can feel, and they were same price for 6 pairs!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2017
J
Verified Purchase
Jimi
Lowell, US
★★★★★ 5
Asics is SOUND
Size: Small, Color: White
prefect to wear with asics wrestling shoes
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 29, 2025
J
Verified Purchase
Jhovany Antonio Tavarez Mena
Lowell, US
★★★★★ 5
Excelente
Size: Medium, Color: Black
Excelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026

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