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Sierra 18-2769-9 Marine Rubber Seal O-Ring - Pack of 2

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

18-2769-9
08/07/2036 9:10 AM
Sale Price

$8.64

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 International 18-2769-9 is a marine-grade rubber seal (O-ring) designed as a direct replacement for OEM seals used in outboard engine water pump assemblies. Sold as a pack of 2, this seal is engineered to meet or exceed the performance of the original equipment part it replaces.

Sierra's rubber seals are manufactured from high-quality rubber compounds built to withstand the demanding conditions of marine environments, including exposure to water, fuel, and heat. This seal is commonly found as a component in water pump kits and is a cost-effective way to restore proper sealing performance during water pump service.

Key Features:

  • Marine-grade rubber construction for durability in harsh conditions
  • Meets or exceeds OEM specifications
  • Sold as a pack of 2
  • Drop-in replacement — no modifications required
  • Trusted Sierra International quality

OEM Cross-Reference:

  • Evinrude/Johnson: 332000
  • GLM: 86540
  • Mallory: 9-76518

Sierra International has over 58 years of history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry, making this seal a reliable choice for your outboard engine maintenance.

ok, had to sort through a bunch of results for what I needed.

Easy to find part using product number. In stock and best price point online! Amazon pay option was great, too!

Easy to navigate. Good pricing

Very quick using Amazon payment method. Part was $20 cheaper than I could find it anywhere else.

Great price on this carb!

Good so far

Item shipped 5 days after order was placed. Worth the wait for the great price however. Order Number: 18722

its good so far i would need to see hows the shipping

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