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Sierra 18-15415 Marine V-Belt 41.5 Inch Replacement

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

118-15415
08/08/2036 5:14 AM
Sale Price

$18.06

3 left at this price

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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 118-15415 is a premium marine V-belt designed for OMC stern drive applications. With an effective length of 41 1/2 inches and a top width of 29/64 inch, this cogged V-belt delivers reliable power transmission for marine engine accessories including alternators, coolant pumps, and raw-water pumps.

Key Features:

  • High-strength synthetic cords resist shock load failure and provide exceptional durability
  • Low-stretch properties ensure uniform performance throughout the belt's service life
  • Special rubber compound section delivers smooth and even transfer of load forces to the cords
  • Precision-molded cogs improve flexibility while maintaining cord support
  • Cogged design provides large air circulation area to keep the belt cool and prevent heat buildup
  • Rubber edges maintain positive, no-slip contact with pulley grooves for reliable energy transfer

Specifications:

  • Effective Length: 41 1/2 inches (105.4 cm)
  • Top Width: 29/64 inch (11.5 mm)
  • Weight: 0.24 lbs

Replaces OEM Part Numbers: OMC 910343, OMC 57-36356, Volvo Penta 958357, Volvo Penta 966974

Sierra marine engine parts are engineered to meet or exceed OEM specifications, providing reliable replacement components for professional mechanics and boat owners who demand quality and performance.

great pricing!

Quick and easy!

So the low stars because, I received the products in two different boxes, which there didn't seem to be any reason as they would have fit in one. The order didn't indicate that there were two different boxes and they showed up days apart. I then contacted you via customer support being worried and no one reached out.

Delivery was fast and always checked up on us about the package

Not yet installed, arrived intact

Great price fast shipping

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