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Sierra 18-7749 Weber 4-Barrel Carburetor Rebuild Kit for Mercruiser

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

18-7749
06/01/2036 4:47 AM
Sale Price

$122.19

In Stock (10+)

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Usually delivered within 2 days

free shipping

FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-7749 is a complete carburetor rebuild kit designed for Weber 4-barrel (4BBL) carburetors used in Mercruiser sterndrive engines. This comprehensive repair kit provides all the essential components needed to restore proper carburetor function and performance in marine V8 applications.

Key Features:

  • Complete rebuild kit for Weber 4-barrel carburetors
  • Engineered with ethanol-resistant materials to withstand harsh marine environments
  • Meets or exceeds OEM specifications for reliable performance
  • Precision-manufactured components ensure proper fit and function
  • Designed for Mercruier V8 engines with carburetor numbers 9661, 9661S, 9770, 9770S, and 9770SA

Replaces OEM Part Numbers:

  • Mercruiser: 809065, 823728, 835076, 8M0120192, 8M0120196, 8M0120197, 811531
  • Mallory: 9-37640
  • Carter/Weber: 9661, 9770, 9781, 9770SA, 9781S

Sierra Marine has over 50 years of experience manufacturing premium engine parts for the marine industry. This carburetor kit is built to handle today's high-horsepower engine demands while standing up to the corrosive marine environment. Regular carburetor maintenance with quality rebuild kits helps ensure optimal fuel delivery, smooth engine operation, and extended carburetor life.

Jennifer was very helpful with ALL questions and coupons. Thank you, Mike D.

Everything went perfectly. The item received was as advertised and arrived when it should have.

It was the wrong part

I would use them again

Great service, delivered on time.

So far so good

Fine

It's nice to know there are still company's that have good customer service yet THANK YOU.

Must have been a problem with amazon server last night or yours . I almost bought elsewhere .

shipment came on time, and was nicely wrapped.

so far so good

Autoplicity has a large selection of parts I need and the lowest prices.What more can you ask for.<br>I will order from them again.

great!!

Smooth transaction. Price listed when searching on Google was not the price listed on website.

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Great price on the part I needed. Fast shipping and good notifications of my order status. Will definitely keep them in mind for future purchases.

Lowest price I found and a great quick ordering experience. Product is listed as for WRX, but other sources say WRX model installs differently. Will work fine for my Forester, though.

I wasn't able to choose PayPal. Everything else was straight forward.

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Thanks for the safe guarantee.

Ordered a hitch type bike rack. Great price, and received it in 4 business days. Couldn't have been easier, couldn't be more satisfied! Great Job!

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