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Sierra 18-8547 Exhaust Elbow Mounting Kit for GM V8 Engines

Manufacturer

Sierra

<p>For nearly six decades, Sierra has established itself as one of the marine industry's most trusted names in aftermarket engine and drive parts. Founded as a specialized marine parts manufacturer, Sierra has grown into a comprehensive supplier of replacement components, instrumentation, and accessories for both recreational and commercial boating applications. Operating from their 300,000-square-foot distribution center in Litchfield, Illinois, Sierra serves boat owners and marine technicians worldwide with an extensive catalog of parts engineered specifically for the harsh saltwater environment.</p><h3>Marine Engine Excellence</h3><p>Sierra's reputation was built on delivering precision-engineered internal engine components and drive system parts that meet or exceed OEM specifications. Their <a href="/7570-sierra-engine-gasket-set-5404">engine gasket sets</a> provide critical sealing solutions for inboard and outboard motors, while their <a href="/7570-sierra-engine-complete-assembly-15341">engine complete assemblies</a> offer comprehensive replacement options for major overhauls. Each component undergoes rigorous testing to ensure reliability in demanding marine conditions, from corrosion resistance to temperature cycling performance.</p><h3>Instrumentation and Monitoring Systems</h3><p>Accurate instrumentation is essential for boat operators to monitor engine health and prevent costly breakdowns on the water. Sierra's comprehensive line of <a href="/7570-sierra-gauges-200483">gauges</a> includes everything from fuel pressure and temperature indicators to voltmeters and trim gauges, all designed with marine-grade materials that withstand vibration, moisture, and UV exposure. Their <a href="/7570-sierra-tachometer-gauge-1488">tachometer gauges</a> deliver precise RPM readings critical for optimizing engine performance and fuel efficiency. Supporting these instruments, Sierra's <a href="/7570-sierra-gauge-resistor-47908">gauge resistors</a> ensure proper signal conditioning and accurate readings across various sensor types and engine configurations.</p><h3>Expanded Product Portfolio</h3><p>In 2022, Sierra significantly broadened its scope beyond traditional marine engine parts to encompass a wider range of boating accessories and even outdoor power equipment components. This strategic expansion brought established marine brands like Shields and Moeller under the Sierra umbrella, creating a one-stop resource for marine maintenance and replacement parts. The company now offers fuel systems, electrical components, battery charging solutions, and NMEA electronics alongside their traditional engine parts lineup.</p><h3>Quality Backed by Industry-Leading Warranties</h3><p>What sets Sierra apart in the crowded aftermarket marine parts market is their commitment to standing behind every component they manufacture. Their warranty coverage extends beyond simple part replacement—it includes shop labor, haul-out fees, towing charges, and related incidental costs should a warrantied part fail. This comprehensive protection reflects the company's confidence in their manufacturing processes and quality control standards. For boat owners facing repairs far from shore or mechanics working on customer vessels, this peace of mind is invaluable. Whether you're maintaining an outboard motor, rebuilding an inboard engine, or upgrading your boat's instrumentation, Sierra's decades of marine industry experience and commitment to quality make them a reliable choice for keeping your vessel running at peak performance.</p>

Part Number

18-8547
06/02/2036 3:09 AM
Sale Price

$19.77

2 left at this price

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-8547 is a complete exhaust elbow mounting kit designed specifically for marine engine exhaust manifold risers. This essential hardware kit ensures secure attachment and proper sealing of exhaust elbows to manifold risers in marine applications.

Key Features:

  • Complete mounting hardware kit for exhaust elbow installation
  • Engineered for GM Small Block V8 engines (305 and 350 cubic inch displacement)
  • Compatible with GM Big Block V8 454 cubic inch engines
  • Designed for use with exhaust manifold risers
  • Marine-grade components for corrosion resistance in harsh saltwater and freshwater environments
  • Includes all necessary fasteners and gaskets for proper installation

This mounting kit replaces worn or corroded exhaust elbow hardware, helping maintain proper exhaust system integrity and prevent dangerous exhaust leaks. Regular replacement of exhaust mounting components is critical for safe marine engine operation and longevity.

Need them fast

Very good, and really good prices.

2 day turnaround and the best price anywhere? What's not to love? Great experience, and will definitely be a repeat customer.

Easy checkout. Thanks.

so far so good we will see how soon I receive it

Great product. Good communication and customer service!!!

This has been one of the fastest checkouts I've experienced in my years of parts purchasing as a DIY'er.

Straight up , seamless process

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Great pricing on almost every product! Quick process and fast shipping! Will definitely order from Autoplicity again in the future.

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