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Sierra 118-3850 Marine Head Gasket Engine Replacement Part

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

118-3850
06/03/2036 6:10 PM
Sale Price

$37.53

1 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 118-3850 is a marine-grade head gasket engineered as a direct replacement for select outboard and inboard marine engines. Sierra International is a leading manufacturer of aftermarket marine engine components, producing parts that meet or exceed OEM specifications for fit, function, and durability.

Head gaskets form a critical seal between the engine block and cylinder head, containing combustion pressure and preventing coolant or oil from mixing with combustion gases. The Sierra 118-3850 is constructed to withstand the demanding thermal cycling and corrosive marine environment that boat engines routinely experience.

Key Features:

  • Direct OEM-replacement fit for compatible marine engines
  • Constructed to meet or exceed original manufacturer specifications
  • Designed to withstand high heat, pressure, and marine operating conditions
  • Provides a reliable seal between cylinder head and engine block
  • Manufactured by Sierra International, a trusted name in marine aftermarket parts

Sierra International has been supplying the marine aftermarket for decades and is widely regarded as a benchmark for quality and reliability. The 118-3850 head gasket is an ideal choice for engine rebuilds, overhauls, or replacement of a failed or compromised factory gasket.

great job

You only had one of these items in stock. I wanted to purchase two. How do I know when it&#039;s back in stock?

glad you guys still had these tires that are discontinued. thanks just needed the one

It was very easy to find parts

very good

Good product

Fast shipping

Good selection and quick delivery. Would be nice to know total price with shipping cost before checking out

Product showed up in great condition and relatively fast.

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