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Sierra 18-8539 Exhaust Manifold Mounting Kit for Volvo Penta 4-Cylinder 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

18-8539
08/04/2036 6:54 PM
Sale Price

$40.30

1 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

Product Details

The Sierra 18-8539 is a marine exhaust manifold mounting kit engineered as an OEM-quality replacement for Volvo Penta 4-cylinder B20 engines. This kit provides all the necessary hardware to properly secure the exhaust manifold on compatible inboard marine engines. It is designed for use with Sierra exhaust manifold 18-1930-1 and pairs with exhaust manifold gasket 18-2991-1.

Key Features:

  • OEM-equivalent fit and function for Volvo Penta B20 2.3L and 2.5L 4-cylinder engines
  • Engineered to meet or exceed original equipment manufacturer specifications
  • Designed for use with Sierra exhaust manifold 18-1930-1
  • Built to withstand the demanding conditions of the marine environment
  • Part of Sierra's comprehensive marine engine parts program

Compatible Engine Models:

  • Volvo Penta AQ120B, AQ125A, AQ131A/B/C/D, AQ140A, AQ145A/B, AQ151A/B/C
  • Volvo Penta BB140A, BB145A, 230, 250

Sierra is a trusted name in aftermarket marine engine replacement parts, supplying components to OEM engine manufacturers and boat builders worldwide. The 18-8539 mounting kit is backed by Sierra's industry-leading warranty, giving you confidence in every installation.

Great

lowest price.that GR8

easy to use website ... hopefully the ship time is just as quick, as the site is simple

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Quick and simple

quick &amp; ez so far

Autoplicity had the best price that I could find. The product was drop shipped from the factory and the time estimate that Autoplicity said was correct.

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Auotplicity had the lowest prices and S&H online. I will shop here again. Thanks Derek!

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Shipped and received quickly, good communication on question I had

Easy to use site and good prices. Will follow up with shipping and product experience. - Shipping was reasonable and items/packaging in good order. Great pricing.

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