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Sierra RK40870 Compact Rocker Switch SPDT Momentary ON-OFF-ON

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

RK40870
08/07/2036 1:30 PM
Sale Price

$15.34

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 RK40870 is a compact SPDT (Single Pole Double Throw) rocker switch with a momentary (ON) - OFF - (ON) configuration, designed for marine and powersports applications. This versatile switch features a high-profile rocker action that delivers a crisp, positive tactile feel for reliable operation in demanding environments.

Key Features:

  • SPDT momentary configuration: (ON) - OFF - (ON) with spring return to center off position
  • Fits standard rectangular cutout for easy installation and replacement
  • High-profile rocker design provides positive tactile feedback
  • Rated for 12A @ 125VAC or 10A @ 250VAC
  • Suitable for low voltage 12V and 24V DC systems
  • Durable construction for marine and outdoor use

The momentary positions (shown in parentheses) automatically return to the center OFF position when released, making this switch ideal for trim tabs, windlass controls, spotlight positioning, and other applications requiring momentary activation in two directions.

Products specifications

Color

None

Positions

(ON) - OFF - (ON)

Type

SPDT

First time buyer

Thank you found the part I needed in short order fast and efficient

Very easy to follow and buy. Thank you

Hope it's the right one!!

Fast and easy

Fast easy checkout

Quick and easy so far. I'll know more after seeing how long delivery takes and whether the product is authentic and as described.

Great price, great service...unfortunately I need to return because the seat does not fit my bike. Not the fault of Autoplicity but of the manufacturer.

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