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Sierra 18-3894 Cylinder Head Gasket for Yamaha Outboard 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

118-3894
06/04/2036 6:21 AM
Sale Price

$33.49

1 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-3894 is a replacement cylinder head gasket designed specifically for Yamaha outboard motors. Sierra has a 58-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry, and this gasket exemplifies their commitment to quality and precision engineering.

OEM Replacement Compatibility:

  • Replaces Yamaha OEM part numbers 6G5-11181-A0-00 and 6G5-11181-00-00
  • Also compatible with 6G5-11181-A2-00, 6G5-11181-A1-00, 6G5-11181-01-00, and 6G5-11181-A3-00
  • Interchangeable with Mallory 9-63951

Key Features:

  • Meets or exceeds OEM standards and is backed by Sierra's industry-leading warranty
  • Designed to meet OEM specifications for precise fit and reliable sealing
  • Engineered to exceed the high horsepower demands of today's engines in the harshest marine environments
  • Ensures proper fit the first time and restores function to OEM specifications

This head gasket is an essential component for engine rebuilds, overhauls, or routine maintenance on Yamaha V6 outboard engines. Sierra, a brand of Dometic, ensures you get the right marine aftermarket parts fast so you can get back to enjoying the water.

Easy checkout, good price.

It was easy

As described and rapid delivery.

thanks

Thanks, and have a great day!

would buy more if there was some free shipping the shipping was more then the product it self

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