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Sierra 18-3744-9 Marine Cotter Pin 3/32" x 3/4" - Pack of 10

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

118-3744-9
08/08/2036 7:04 PM
Sale Price

$7.04

2 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 18-3744-9 is a premium marine-grade cotter pin designed specifically for Johnson/Evinrude outboard engines, OMC stern drives, and Volvo Penta engines. This essential fastening component measures 3/32" x 3/4" (2.4mm x 19.1mm) and is sold as a convenient package of 10 pins.

Key Features:

  • Stainless steel construction for superior corrosion resistance in marine environments
  • Split pin design provides secure locking of castle nuts and rotating components
  • Meets or exceeds original equipment manufacturer specifications
  • Backed by Sierra's limited lifetime warranty
  • Package of 10 cotter pins for multiple repairs and maintenance tasks

Replaces OEM Part Numbers: Johnson/Evinrude 552906, OMC Stern Drive 3852255 and 552906, Volvo Penta 3852255, GLM 22140

Sierra Marine replacement parts are manufactured to meet or exceed OEM requirements, ensuring reliable performance and long-lasting durability in demanding marine applications. These cotter pins are essential safety components used to prevent axial movement and secure critical fasteners on outboard motors and stern drive systems.

great pricing!

Fast easy and reasonably priced

great price and selection for european automobiles

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?

Great price. Arrived fast.

Found the part I needed when it was sold out everywhere else. Thank you!

thanks

It is quick shipping and pack well, the most important that price is 25% off than other market price

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