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Sierra 18-15325 Marine V-Belt Cogged Replacement Belt

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

18-15325
07/13/2036 12:55 AM
Sale Price

$11.75

1 left at this price

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Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-15325 V-Belt is a precision-engineered marine cogged drive belt designed as a direct replacement for Volvo Penta and Mercury Marine stern drive applications. Built to meet or exceed OEM specifications, this belt delivers dependable power transfer to critical engine accessories including the water pump and alternator.

Key Features:

  • High-strength synthetic cords resist shock load failure and provide low-stretch performance for consistent, uniform operation over the life of the belt
  • Special rubber compound compression section assures smooth and even transfer of load forces to the cords, reducing uneven wear and cord fatigue
  • Precision-molded cogs engineered to exact tolerances to improve belt flexibility and maintain cord support throughout the full range of motion
  • Large cog air channels promote circulation around the belt, keeping it cool and preventing heat buildup in the compression section
  • Rubber edges maintain positive, no-slip contact with pulley grooves for reliable, efficient energy transfer

Specifications:

  • Effective Length: 32-1/2 in. (82.6 cm)
  • Top Width: 29/64 in. (11.5 mm)
  • Replaces Mercury Marine: 57-77274A1
  • Replaces Volvo Penta: 958303

Sierra is the marine aftermarket industry leader, and this V-belt is backed by Sierra's comprehensive warranty covering both parts and labor. A straightforward, cost-effective replacement that restores factory-level performance to your stern drive engine.

Excellent transaction, ordered on Monday received my goods on Wednesday...

the best

Good

Awesome brahh cheapest price

Easy mobile site. Chose 2nd day air. Would love if handling time was 1 business day. We shall see!

good so far. received item on time, maybe even a little faster than I expected. the item was exactly as described, quality is good and exactly what I needed. it has been installed and works great. will do business with Autoplicity again. would definitely

best price available plus like the ability to pay with amazon

So far so good

Excellent to deal with. Best price in the country and immediate handling. Received via ground across the country in 4 days. Thx!!!

Great price and in stock, if shipping goes well, then stellar my review stays 5 stars.

Quick shipping and a part that worked.<br><br>order 104-9436863-0564219

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