Manufacturer
<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>
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$14.33
In Stock (10+)
Usually delivered within 2 days
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The Sierra 18-80403 is a female quick-connect fuel line connector designed as a direct replacement for late-model Honda outboard engines. Featuring a 3/8" (9.5mm) barb and a rectangular locking post, this connector provides a secure, leak-free connection between the fuel line and the outboard motor.
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Sierra is a trusted aftermarket marine parts manufacturer with decades of experience producing engine and drive components that meet or exceed OEM standards. The 18-80403 is built to withstand the harsh marine environment and deliver reliable fuel delivery performance.
Both thumbs up on product and delivery.
Taylor S
Very good
Gilberto A
delivery was unexpectedly FAST! lowest price, didn't nickel and dime me to death
Ronald D
Great service, I had a few questions about the part numbers and description, the sales guy work hard to answer. The pictures, we're not what I wanted, I ordered with a bit of speculation on what I would get and when my stuff arrived, ( in 2 days
Kent W
Fast shipping, great selection and prices.
Raymond H
ok
Doug W
3/13/2012<br>Order #6330 (3/12/3012)<br>Autoplicity had the cheapest price on the web for the Thule Raceway 3 Bike Rack...great customer service and speedy delivery.<br>Thanks...Mike P. NY
mjpalma19
I looked all over the web for the Thule sidekick car top carrier and autoplicity had the best price and the website was easy to maneuver through. It willbe my first stop for shopping.
Jlaufma
quick and easy. love the paypal checkout option
Darren
So far so good. I assume because the system allowed me to use the po box for shipping address that you can ship via USPS. Other carriers can not us po box but they are far more expensive. If there is a problem with that and you need physical address it is
Richard Bowers
Fast
Nathan
Easy and perfect
joe
great prices!
Jerry Herrera
excellant
shawn compton
Easy to do online
Andrea
Same day shipping. Highly recommended!
mensor91
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