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Sierra RK40110 On-Off-On Illuminated Rocker Switch 20 Amp 12V

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

RK40110
06/01/2036 6:56 PM
Sale Price

$15.67

In Stock (10+)

delivery box

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 RK40110 is a heavy-duty illuminated rocker switch designed for marine and automotive applications. This three-position On-Off-On switch features a dependent pilot light that illuminates when activated, providing clear visual indication of switch status in low-light conditions.

Key Features:

  • Three-position operation: On-Off-On with S.P. (single pole) configuration
  • Non-corrosive plastic construction for durability in harsh environments
  • Silver contacts for reliable electrical conductivity
  • Brass blade terminals for secure connections
  • Rated 20 amps at 12VDC for handling high-current applications
  • Integrated dependent pilot light illuminates when switch is in the on position
  • Fits panel cutout: 0.830" x 1.45"
  • Accommodates panels up to 0.187" thick

This rocker switch is ideal for controlling bilge pumps, navigation lights, electronics, and other 12-volt DC accessories on boats, RVs, and vehicles. The corrosion-resistant construction ensures long-lasting performance in marine environments.

Products specifications

Positions

On/Off/On

Terminals

4 Blade

Type

SPDT

Best price. Received confirmation of shipment two days after placing order. Hoping to see product soon.

Called for help getting the right one and customer service was very friendly

Just needed a belt

Great pricing and quick shipping. I'll be using them again for sure.

Best price on the web for procomp tires. Will definatly do business with them again. A+++++

Great place to shop. My brother and I race for cars and they were by far the cheapest place for our car cover by about 40 bucks!

Good job

Very good price. Super quick delivery. Will def. buy from them again. Highley recomend them

Would not take my promo code....

If this item is real at this price, this is the best shopping experience of my life so far.

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