18-2833-9 Exhaust Elbow Gasket for Mercruiser Stern Drives, Qty. 2
Mouse Over to Zoom
Click to Enlarge

SIERRA18-2833-9 Exhaust Elbow Gasket for Mercruiser Stern Drives, Qty. 2


In stock online.
Model # 6368138 | Mfg # 18-2833-9UPC # 808282163402


18-2833-9 Exhaust Elbow Gasket for Mercruiser Stern Drives, Qty. 2

Name Value
Compatibility Mercruiser Stern Drive
Type Gaskets

Product Overview

Always replace the gasket after inspecting or replacing exhaust manifolds and risers

Sierra gaskets are engineered to meet or exceed manufacturer specifications and provide added value to boaters and marine mechanics. Exhaust manifolds and risers take a beating in the marine environment and require regular inspection to avoid catastrophic engine failure. After an inspection (or replacement) it is equally important to replace the manifold and riser gaskets to maintain separation of exhaust and cooling channels. Sierra manifold gaskets are designed to perfectly match exhaust and cooling ports and give mechanics the confidence that the job is done right the first time. See our Engine Parts Selector to confirm which gasket is correct for you application.

Additional Information:

  • Fits: MCM 120 (1993 & newer), 140/3.0L, 470, 165 in-line 6 cyl., GM V-8 small block (1982 & older)
  • Fits: Ford V-8 engines

Key Features

  • Matches OEM hole and port patterns for an exact fit
  • Manifold kits sold in pairs (where applicable)
  • Engineered to meet or exceed manufacturer specifications



    • MC472799777


    • 31520


    • 9-61407

    Mercruiser Stern Drive

    • 27-52076
    • 27-99777
    • 27-997771
    • 27-997772
    • 27-99777B2


    • 52076

The Sierra Engine Parts Selector

In addition to gaskets, we offer a wide variety of other engine parts manufactured by Sierra. To see if we have the part you need, see our Engine Parts Selector, where you can search by engine make, serial number and model or year of manufacture.


The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.

Related West Advisor Articles


Product Q & A