My Account
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order

Sierra 18-0879 Adapter Plate Gasket for Mercury/Mariner Outboard

Manufacturer

Picture for manufacturer Sierra

Part Number

118-0879
8 reviews
Sale Price

$7.51

1 left at this price

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 18-0879 is a premium aftermarket adapter plate gasket designed for Mercury and Mariner outboard engines. This critical engine component provides a reliable seal between adapter plate surfaces, ensuring proper engine function and preventing fluid leaks.

Key Features:

  • Engineered to meet or exceed original equipment specifications
  • Precision-cut for accurate fitment and reliable sealing
  • Made from quality materials for long-lasting performance
  • Direct replacement for multiple OEM part numbers

OEM Cross-References: Mercury Marine 27-385011, 27-38501, 27-377424; GLM 31400; Mallory 9-60042

Sierra is a trusted name in marine engine parts, offering premium-quality aftermarket components backed by rigorous quality standards. Each gasket is manufactured to ensure proper fit and reliable performance in demanding marine environments.

Quick order and very fast delivery.

Good price for specialty purchase, and quick turnaround.

Ordered two of the same windshield wipers, and they shipped separately.. one was packed very nicely in an oversized box... the other was wrapped in a plastic mailer and arrived with the clips inside crushed

Easy to navigate and great peices

The prop was exactly what i ordered. much thicker than my repaired prop has been.

Good, quick service at a good price.

Tires arrived in a very timely manner, price was great! Would buy from again for sure.

Very quick. But Not sure if the part is actually correct cause there was no description or picture. Just a part # .

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