My Account
Shopping Cart

Sierra 18-0523 Marine Oil Seal for Mercury/Mariner Outboard & MerCruiser Stern Drive

Manufacturer

Part Number

18-0523
Sale Price

$17.46

2 left at this price

delivery box

Usually delivered within 2 days

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 18-0523 Marine Oil Seal is a precision-engineered replacement seal designed for Mercury/Mariner outboard engines and MerCruiser stern drive applications. Built to meet or exceed original equipment specifications, this seal provides a reliable barrier that keeps lubricating oil in and contaminants — including dirt and debris — out of shafts and bearings.

Key Specifications:

  • Outer Diameter (O.D.): 2.132"
  • Shaft Size: 1.640"
  • Width: 0.282"

Cross-Reference Part Numbers:

  • Mercury Marine OEM: 26-43993
  • GLM: 85090

Sierra International is a leading manufacturer of aftermarket marine parts. Every Sierra component is engineered to meet or exceed original equipment standards, ensuring dependable performance on the water.

I thought it was free shipping.

great so far

Easy to use mobile site

Easy explained, fast ,love it

Quick and Easy

Great

Great price, fast shipping, awesome product!

so far so good every thing was just as it should be - good work

So far so good we will see how 2nd day air shipping works. Thanks

Easy fast transaction

Quick ordering, cheap prices, and an easy, excellent online shopping experience. Hence why I ordered again. Could work on shipping costs though.

Very fast shipping & good prices.

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