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Sierra 18-7704 Idle Air Control Motor for Volvo Penta OMC

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

18-7704
06/01/2036 2:41 AM
Sale Price

$207.99

3 left at this price

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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

The Sierra 18-7704 Idle Air Control Motor (IAC) is a precision-engineered replacement component designed to maintain smooth and stable engine idle by regulating airflow at idle speed. This motor provides reliable performance for marine stern drive applications.

Key Features:

  • Direct OEM replacement for Volvo Penta part number 3855194
  • Also replaces OMC Stern Drive 3855185 and EMP 1300-36043
  • Improved metal stem construction attached to valve plug versus older plastic designs that are prone to breakage
  • Controls air delivery to the engine during startup and idle operation
  • Mounts directly to the side of the throttle body for easy access and installation
  • Features proper mounting tang configuration with longer top tang for correct fitment

This idle air control motor is engineered to meet or exceed OEM specifications, ensuring dependable operation and proper engine idle characteristics. The upgraded metal stem design provides enhanced durability and longevity compared to original equipment.

Quick and easy , thanks.

Thank you. Product as described. Shipped quickly. Excellent prices. Great customer service.

great experience

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Great again!

Great

I gave u a pretty good rating because u guy didn't not have the parts I needed and u refunded me right away thanks again

Good

Quick, easy, and great price!

great and reliable

I haven't had one yet

Great.

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I purchased a Smittybuilt Smart Truck Cover for a 2011 Tundra. Service and delivery were quick and easy, and quality of the product is excellent. I will be using Autoplicity for future auto parts purchases.<br><br>Ben D.

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