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Sierra 18-2375 Magnetic Drain Plug 3/8-16 Thread

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

18-2375
06/04/2036 10:08 AM
Sale Price

$5.81

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-2375 is a magnetic drain plug designed for marine engine oil changes. This essential maintenance component features a built-in magnet that captures metallic particles and debris in the oil, helping you monitor engine wear and prevent contamination from circulating through the lubrication system.

Key Features:

  • Integrated magnet captures metal shavings and debris for early wear detection
  • Standard 3/8 inch-16 thread pitch fits multiple marine applications
  • Direct replacement for OEM drain plugs on compatible engines
  • Durable construction for reliable sealing and long service life

Compatibility:

  • Mercruiser stern drive units
  • Mercury Marine and Mercury Race outboard engines
  • Chrysler and Force marine engines
  • US Marine engine applications

This magnetic drain plug makes routine oil changes more effective by allowing you to inspect captured particles for signs of abnormal engine wear. Regular inspection of the magnetic tip during oil changes can provide early warning of potential engine problems.

Fast, easy

Quick and low cost

Great !!!!!!

easy, quick, direct!

Thanks

Pre drilled holes for the bolts to go in would be nice to have

Great experience.

No problems, fast shipping. Best price I could find. Will buy from them again.

Best price I could find anywhere and it shipped right away!

easy to find item I wanted and at a good price.

love the amazon sign in

I have had excellent service from this site and speedy delivery. They also send you an email with order info and tracking number everytime.

Great price on a hard to find item! Ordered on a Sunday and it shipped the next day via FedEx...so great service!

The shipping was fast, although I couldn't get it the first day because they require signature for delivery. I guess it's an added safety measure. Thank you! Will shop buy from again!

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