18-8554 Exhaust Elbow Mounting Kit for Mercruiser Stern Drives
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SIERRA18-8554 Exhaust Elbow Mounting Kit for Mercruiser Stern Drives


In stock online.
Model # 10517332 | Mfg # 18-8554UPC # 808282145613


18-8554 Exhaust Elbow Mounting Kit for Mercruiser Stern Drives

Name Value
Compatibility Mercruiser Stern Drive
Type Elbow Mounting Kits

Product Overview

Install exhaust elbows with a convenient mounting kit.

Sierra helps to maintain the flow of work by packaging mounting kits that include the gaskets and fasteners needed to complete exhaust elbow installations. Valuable time can be saved by not having to research and source individual parts. To make installation predictable, Sierra gaskets and threaded studs included in this kit are manufactured to stringent quality standards and are full interchangeable with the OEM products they are designed to replace. To take the time out of sourcing parts, look to Sierra elbow mounting kits for a solution.

Key Features

  • Included gasket and fasteners are engineered to meet or exceed OEM specifications
  • Kit includes gaskets, threaded studs and nuts
  • Compatible with Sierra elbow p/n 18-1970-1, 18-1971, 18-1978 and Sierra manifold spacer 18-1906 and 18-1908
  • Fits GM V6 (229—262 cu. in.), GM V8 Small Block (305—350 cu. in.) and GM Big Block (454 cu. in) based marine engines

How to find the elbow mounting kit you need

Select your elbow mounting kit by locating the OEM part number in the table below. If you don't know the OEM part number, please visit our Engine Parts Selector, where you can search by engine make, model, horsepower, serial number and year of manufacturer.

Application`OEM Part Number
Osco3320-MK, 6371-MK-SP

We offer a variety of Sierra engine parts for most engine applications on the water today—including MerCruiser, OMC, Johnson/Evinrude, Volvo and more...


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