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Sierra 18-7381 Mercury Carburetor Float for Marine Outboard Engines

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

18-7381
07/13/2036 12:43 AM
Sale Price

$14.14

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 18-7381 is a replacement carburetor float designed for Mercury marine outboard engines. This precision-engineered float restores proper fuel metering to the carburetor, helping maintain consistent engine performance, smooth idling, and reliable throttle response on the water.

The carburetor float is a critical component in the fuel delivery system. It rises and falls with the fuel level inside the float bowl, actuating the needle valve to regulate incoming fuel and prevent flooding or fuel starvation. A worn, cracked, or waterlogged float can lead to hard starting, rough running, excessive fuel consumption, or engine flooding — making timely replacement essential.

Key Features:

  • Direct replacement carburetor float for Mercury outboard engines
  • Engineered to meet or exceed original equipment (OEM) specifications
  • Constructed with fuel-resistant materials for durability in harsh marine environments
  • Ensures accurate fuel metering for optimal carburetor performance
  • Backed by Sierra's industry-leading manufacturer's warranty

Sierra International is one of the marine industry's most trusted suppliers of engine and drive parts, providing OEM-quality components to boat builders and engine manufacturers. The Sierra 18-7381 float is a dependable, cost-effective solution for carburetor rebuilds and fuel system maintenance on Mercury-powered vessels.

K

Yup

Quick and easy.

It came fast but it wasn't the right part, but that was my fault for not doing more research.

there is no product information. i have to go to other sites to read about the product.

Good job.

Easy purchase

Good

Fast and easy!

I liked connection to my amazon account.

fast and easy

if this is the right part, I will be very pleased

received a follow up phone call within a hour letting me know that my order #5153 would be coming from a certian warehouse and about what time it will arrive...Great service!!!highly recommend

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