My Account
Shopping Cart

Sierra 18-0711 Float Chamber Gasket for Yamaha 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

118-0711
06/01/2036 10:26 PM
Sale Price

$22.19

In Stock (10+)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-0711 Float Chamber Gasket is a precision-engineered replacement gasket designed for Yamaha outboard engines. This critical fuel system component creates a reliable seal for the VST (Vapor Separation Tank) float chamber, ensuring proper fuel system operation and preventing leaks that could compromise engine performance.

Key Features:

  • Direct replacement for Yamaha OEM part number 66K-14984-00-00
  • Manufactured to meet or exceed original equipment specifications
  • Compatible with Sierra VST filter kits 18-79952 and 18-79953
  • Designed to maintain proper float system function without leaking
  • Quality construction ensures long-lasting, reliable performance

Application:

Fits Yamaha 2-stroke 6-cylinder outboard engines from 1999-2019, including 150hp, 175hp, 200hp, 225hp, 250hp, and 300hp models across multiple series (DX, LX, LZ, PX, VX, VZ, Z, SX, S, V, and L series).

Sierra Marine products are trusted by OEM engine manufacturers and boat builders worldwide, offering reliable performance for repair work, complete replacements, or new builds. This gasket ensures your fuel system operates at peak efficiency when your engine needs it most.

I got the part on time but it's not the right part I've been trying to send it back for almost two and a half weeks I really need to get my money back

Can&amp;#039;t beat the price.

Easyto use and check out

great and easy

great!

Thank you. The a/c unit arrived a lot quicker to IN than we expected. We were able to install it on the boat the night before we left on a family vacation trip with the boat.

Easy to use website, good prices

You folks had the best price for this unit, hands down. I regret not being able to comment on this camera since I haven't been out fishing with it yet. But I can say the purchase experience was trouble free and it got here in the time frame promised. Thanks!!

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy