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Sierra 18-7130 Marine O-Ring for OMC Stern Drive

Manufacturer

Picture for manufacturer Sierra

Part Number

18-7130
13 reviews
Sale Price

$3.37

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-7130 is a precision-engineered marine O-ring designed as a direct replacement for OMC and Cobra sterndrive applications. This essential seal component ensures proper sealing in lower unit drive shaft assemblies, preventing water intrusion and maintaining optimal performance in harsh marine environments.

Key Features:

  • Direct replacement for OMC part numbers 314728 and 354731
  • Precision dimensions: 2.125" (54mm) inside diameter, 0.100" (2.5mm) width
  • Designed for OMC Cobra and OMC sterndrive/outdrive applications
  • Compatible with Johnson/Evinrude outboard motors (various HP ratings)
  • Also cross-references to GLM 81380 and Mallory 9-76528
  • Marine-grade material construction for saltwater resistance

This O-ring is commonly used in lower gearcase assemblies for OMC sterndrives fitted to V6, V8, and 4-cylinder engines from 1986-1993 model years. Sierra marine parts meet or exceed original equipment specifications, providing reliable performance and durability for marine applications.

So far so good

Great price!

Installed a 5th wheel hitch in a F150 with a 5 1/2' bed. Autoplicity had the Sidewinder hitch I needed to put the swivel under the camper insead of at the hitch,also at a lower price than competitors with extremly reasonable shipping $14.38. I Placed the order on a Friday and the item shipped the same day. Very happy with the product and fast shipping.

Great price and selection. Good communication after the sale. Fast shipping. Will shop here again for my next purchase.

Couldn't use paypal but other than that it was fine. Battery came with a broken top, packaging was not up to the std. of other Optima batteries I have ordered on line.

So far very smooth.

You should provide more information about fitment of parts. Thanks, Jim

Thank you for the great prices

I am extremely happy with Autoplicity from start to finish! They had the best prices online on Hawk Performance pads and were shipped the day I ordered. They were at my door step within two days of me ordering them! You can't beat that anywhere. Cheaper and faster, it truely dosen't get any better than that.

Nice item

Easy to find product I need and easy to check out.

Best price online for an Injen intake. Arrived in a week. Appreciated the "Item shipped" email with tracking number!

very easy to find parts and great price

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