My Account
Shopping Cart

Sierra 18-0320 Reed Block Gasket for Mercury/Mariner Outboard

Manufacturer

Part Number

118-0320
Sale Price

$4.49

1 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 18-0320 is a replacement reed block gasket designed for Mercury and Mariner outboard engines. This gasket provides a critical seal for the reed valve assembly, which controls the intake of the air-fuel mixture in two-stroke marine engines.

Key Features:

  • Direct replacement for Mercury Marine OEM gasket 27-13937-6
  • Meets or exceeds original equipment specifications
  • Precision-cut for proper fit and reliable sealing
  • Designed for internal engine system applications
  • Quality-tested for marine environment durability

Cross-Reference Part Numbers:

  • Mercury Marine: 27-13937-6, 27-139374, 27-139372, 27-13937
  • GLM: 32220
  • Mallory: 9-60061

Sierra Marine products are engineered to deliver reliable performance and long service life for outboard and sterndrive applications. This gasket helps maintain proper compression and engine efficiency when servicing or rebuilding your Mercury or Mariner outboard motor.

great experience

Quick and easy search system.

SUPER EASY & great price assuming tires arrive on time as advertised

Very competitive prices, fast delivery. Would buy from again.

super easy and they actually have the size i need

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