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Sierra 18-9775 Ethanol Fuel Treatment and Stabilizer 8 oz

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

18-9775
06/02/2036 8:52 AM
Sale Price

$6.39

In Stock (10+)

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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

Sierra 18-9775 Ethanol Fuel Treatment and Stabilizer is a specialized fuel additive designed to protect marine and powersports engines from the damaging effects of ethanol-blended gasoline. This 8-ounce bottle treats up to 80 gallons of fuel, making it an economical solution for boat owners, RV enthusiasts, and powersports operators.

Key Features:

  • Protects fuel systems from corrosion caused by water attracted by E10 and other ethanol fuels
  • Stabilizes gasoline during storage to prevent degradation and varnish buildup
  • Treats up to 80 gallons of fuel per 8-ounce bottle
  • Prevents phase separation in ethanol-blended fuels
  • Helps maintain peak engine performance and fuel efficiency
  • Ideal for marine engines, motorcycles, ATVs, lawn equipment, and stored vehicles

This fuel treatment is essential for anyone using ethanol-blended gasoline, especially in equipment that sits idle between uses. By preventing water-related corrosion and keeping fuel fresh, Sierra 18-9775 helps extend engine life and ensures reliable starts even after extended storage periods.

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seems quick and easy. However the fitmant guide on the product says the part will fit, and the vehicle selection column on the left says it will not

It was fast and painless, I hate online ordering that has a zillion different things to input, this was simple. Thanx...

A real pleasure doing business with you guys. I ordered over the phone and received great service and the correct product in a very timely matter. Very pleasant transaction with no hassles! Thank You so much. John W.

Easy and fast, can't beat that with a stick. It even arrived a day earlier than indicated. What else can I ask for. The install was really smooth and really did only take me about an hour. However, I did have access to a lift because a friend of mine owns

Low price, quick shipping & confirmation of order.<br>

Easy as pie!

I spoke with the owner, awesome dude, told me he gets prices NOBODY else can! I just got notification that my items are shipping, so, I cannot review the actual product yet....but as far as pricing goes and communications....excellent! You gotta check this place out!! Jas. (&thanks for the extra incentives!!)

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