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Sierra 18-5836 Marine Starter Solenoid for Mercury MerCruiser Outboard

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

118-5836
07/13/2036 4:06 AM
Sale Price

$31.72

4 left at this price

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Usually delivered within 2 days

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Product Details

The Sierra 18-5836 is a high-quality marine starter solenoid designed as a direct replacement for Mercury, Mariner, and MerCruiser engine applications. This essential electrical component acts as a heavy-duty switch that connects battery power to the starter motor when the ignition key is turned to the start position.

Key Features:

  • Engineered to meet or exceed OEM specifications for reliable marine performance
  • Rugged construction designed for harsh marine environments
  • Direct replacement for Mercury/Mariner outboard and MerCruiser inboard/outboard engines
  • Compatible with various marine electrical systems including OMC and Evinrude applications
  • Backed by Sierra's limited lifetime warranty

Replaces OEM Part Numbers: Mercury 25661, 256611, 25661T1, MerCruiser 25661, 256611, 25661T1, Mallory 9-15103, GLM 72480, Arco SW661

This solenoid switch is a critical component in your marine starting system, converting low-current ignition signals into high-current power delivery to crank your engine. Sierra's reputation for quality marine replacement parts makes this an excellent choice for boat owners and marine technicians.

Wiring harness looks good so far. Have not installed it yet. Only issue an not the fault of the seller....box torn open in shipping. But everything looks to be intact.

Easy to navigate website and great prices!

No comment.

Good price and a easy web sight

Awesome stock!!

produce shipped quickly and was package very well. Arrived on date provided at shipping.

Had what I needed at a great price

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