My Account
Shopping Cart

Sierra RK19840 Contura III Illuminated Marine Rocker Switch On-Off-On DPDT Black

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

RK19840
08/07/2036 4:55 AM
Sale Price

$21.62

4 left at this price

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra RK19840 is an illuminated, weather-resistant Contura III marine rocker switch designed for demanding marine electrical panel applications. Featuring a Double Pole Double Throw (DPDT) On-Off-On switching configuration, this switch delivers crisp, reliable circuit control in a compact, panel-ready form factor. The LED illuminates red in the "ON" position, providing clear status visibility at a glance.

Built with non-corrosive plastic construction, the RK19840 is engineered to withstand the harsh marine environment, protecting against dust and prolonged water spray to IP66 and IP68 standards. It meets UL 1500 and ISO 8846 ignition protection requirements, making it safe for use in fuel-vapor-prone areas on board.

Key Features:

  • Switch function: On-Off-On, Double Pole Double Throw (DPDT)
  • Rated 20 amps @ 12 VDC
  • Illuminates red in the "ON" position via 12V LED
  • IP66 and IP68 rated — dust-tight and water spray resistant
  • Meets UL 1500 and ISO 8846 ignition protection standards
  • Non-corrosive plastic housing for marine durability
  • Brass blade terminals with silver contacts
  • Removable actuators for flexible installation
  • Supplied with neoprene mounting gasket
  • Black actuator finish
  • Packaged individually in clamshell

Sierra's Contura III rocker switches are trusted by OEM boat builders and marine service professionals alike. The RK19840 meets or exceeds original equipment standards and is backed by Sierra's industry-leading warranty program.

No

Exceptional! Received right away.

There is no way of knowing if item is in stock or will be dropped shipped immediately

Very good

thank you'

quick and easy!

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy