Sierra 18-2880-9 Cover Plate Gasket, Replaces 304023, Johnson/Evinrude Applications, Pack of 2

The Sierra 18-2880-9 Cover Plate Gasket is a round gasket built for Johnson and Evinrude outboard applications, sold as a package of two so you have a spare or can service both sides of a job in one purchase. It seals the cover plate against leaks at the mating surface, restoring a tight fit after the original gasket has hardened, torn, or compressed with age. Sierra manufactures this gasket to meet or exceed the specifications of the original equipment part it replaces, giving installers a reliable, drop-in alternative to the OEM component without hunting down a discontinued factory part.

Because it is a low-cost wear item, the Cover Plate Gasket is commonly replaced any time the cover plate is removed for service, since reusing an old gasket risks a leak. The pack-of-two format makes it practical to keep a spare on hand or to service a pair of engines or covers in a single order.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-2880-9
• Product Name: Cover Plate Gasket
• Package Quantity: 2 gaskets per package
• Shape: Round
• Application: Johnson and Evinrude outboard engines
• Weight: 0.02 pounds
• UPC: 808282163853
• OEM Cross Reference: 304023

Fitment

Designed for Johnson and Evinrude outboard applications.

Replaces (OEM)

• 304023

Frequently Asked Questions

What does the Sierra 18-2880-9 Cover Plate Gasket fit? This gasket is designed for Johnson and Evinrude outboard applications.

How many gaskets come in a package? The 18-2880-9 is sold as a package of two cover plate gaskets.

What OEM part number does the 18-2880-9 replace? It replaces Johnson/Evinrude part number 304023.

How much does this gasket weigh? The Sierra 18-2880-9 Cover Plate Gasket weighs 0.02 pounds.

What shape is the cover plate gasket? It is a round gasket.

Is the Sierra 18-2880-9 an OEM part or aftermarket? It is a Sierra aftermarket gasket manufactured to meet or exceed the specifications of the original equipment part it replaces.

When should I replace this gasket? Any time the cover plate on a Johnson or Evinrude outboard is removed for service, since reusing a hardened or torn gasket risks a leak; the 18-2880-9 provides a fresh replacement.

What is included with part number 18-2880-9? Two Cover Plate Gaskets are included in each package.

Does Sierra make this gasket for other outboard brands? The 18-2880-9 is designated for Johnson and Evinrude applications.

What is the UPC for the Sierra 18-2880-9 gasket? The UPC is 808282163853.