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Sierra 18-2000 Oil Seal Replacement for OMC 309989

Part of: Sierra Oil Seal for Yamaha Outboard Lower Unit

Other options in this family: Sierra 18-2001 Sierra 18-2061 Sierra 18-2062 Sierra 18-0267 Sierra 18-2029

Manufacturer

Picture for manufacturer Sierra

Part Number

18-2000
13 reviews
Sale Price

$13.72

1 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Sierra 18-2000 is a replacement oil seal designed to meet or exceed the original equipment specifications of OMC part number 309989. Sierra International is a trusted manufacturer of marine aftermarket parts, providing reliable, drop-in replacements for outboard and sterndrive applications.

Oil seals play a critical role in preventing lubricating oil from leaking out of gearcase and drivetrain assemblies. A worn or damaged seal can lead to oil loss, water intrusion, and ultimately serious internal engine or gearcase damage. Replacing a compromised seal with a quality Sierra unit helps protect your marine investment and ensures proper operation.

Key Features:

  • Direct replacement for OMC OEM part number 309989
  • Manufactured by Sierra International to meet or exceed OEM specifications
  • Helps prevent oil leaks and water contamination in marine drivetrain assemblies
  • Quality materials provide durable, long-lasting sealing performance
  • Trusted aftermarket alternative at a competitive price point

Sierra 18-2000 is part of Sierra's extensive marine parts catalog, making it easy to source reliable replacement components for OMC-powered vessels. Always inspect seals during routine maintenance and replace as needed to maintain peak performance and reliability on the water.

Purchase was quick and easy. Prices were the best for online purchase. Satisfied with purchase for this vendor. Shipping was also quick as well.

Perfect transaction. Perfectly satisfied. Best price anywhere, same-day shipping. Couldn't be happier. Thanks Autoplicity.

great price

First time using Autoplicity. Online ordering was fast and easy. Price on tuner was lowest I found. I called customer service with question about shipping,Got right through.Shipping was FAST. I just found me a new favorite online store. Got to give Autoplicity an A+.....

Some items are not auto specific but when you enter the auto info it does not let you purchase the item

Great Communication and instant shipping. Well done!

so far so good

best price i found online

Best prices

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had my products:)products were exactly what I needed. Fast delivery.

ordered a steering box for a dodge truck, beat price i could find no hastle and easy to deal with i call and had a question and recieved an answer while on phone in just minutes.

Quick,easy,just the way every company should be. Thank you!

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