My Account
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order

Sierra 18-8300 Oil Seal for Johnson/Evinrude Outboard Motors Gaskets & Seals

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

18-8300
13 reviews
Sale Price

$13.23

In Stock (9)

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-8300 is a premium aftermarket oil seal designed specifically for Johnson and Evinrude outboard motors. This precision-engineered seal provides reliable protection against oil leaks in critical engine components, ensuring optimal performance and longevity of your marine engine.

Key Specifications:

  • Outer Diameter (O.D.): 1.378 inches
  • Shaft Size (Inner Diameter): 0.866 inches
  • Width: 0.280 inches
  • Application: Vertical shaft sealing

OEM Cross-References:

  • Johnson/Evinrude/OMC: 341280, 0341280, 878966
  • GLM: 86011
  • Mallory Marine: 9-76221

This oil seal is compatible with a wide range of Johnson and Evinrude outboard motors from 80 HP to 300 HP, manufactured between 1995 and 1998. Sierra Marine parts are engineered to meet or exceed OEM specifications, providing dependable replacement components for marine engine maintenance and repair. Made from durable materials designed to withstand the harsh marine environment and resist degradation from oil, salt water, and temperature extremes.

amazing seller kept me up to date on the order. I will do business with them again. <br><br>

<br><br>Borgeson 000940<br><br>I found Autoplicity during a price search on the Borgeson steering shaft for my truck. I had never heard of them, and was a bit skepticle. But after doing some research, found that Autoplicity has a good reputation on a Jeep forum I visit.<br><br>I decided to order, and I am impresed. Extremely fast shipping, I placed my order on Saturday, and its now Monday before noon. I am holding the new part!

Quick and easy!

Everything I was looking for, thanks!

Very quick ordering, however I was unable to use the PayPal function.

Great service

I purchased "Carrand Whisk Broom 10'' W Label",after exhaustive research for this particular item...they have the BEST/LOWEST COST for this item anywhere!!<br><br>Shipped in a timely manner too!<br><br>Will do business here again in the future,as they have prices that are LOW,plus the great products are found here too.<br><br>Thanks to the staff for a great online shopping experience!

Satisfied

extremely simple process

Good web store front. Makes Parts Geek look like the trainwreck it is.

Best Price and good shipping price for Alaska.

quick and easy shopping

First time customer and I'll be back! Great prices, and rediculously fast shipping. Ordered Sunday night, delivered Wednesday morning. Couldn't ask for better service.

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy