Sierra Ignition Switch 4-Position

SIERRA 4-Position Ignition Switch | Marine-Grade Electrical Control

Ensure the heart of your vessel´s electrical system is robust and reliable with the SIERRA 4-Position Ignition Switch. As a critical component in your boat´s electrical connections, this switch is engineered to provide dependable performance and withstand the rigors of the harsh marine environment. Whether you are performing a complete rewiring, upgrading your helm, or replacing a faulty original part, this SIERRA switch offers the quality and durability that boaters have trusted for decades. Gain peace of mind knowing your ignition system is anchored by a component designed for longevity, safety, and flawless operation, allowing you to focus on your time on the water.

Unmatched Durability for Marine Applications

This ignition switch is specifically designed to combat the primary enemy of marine electronics: corrosion. Its traditional brass construction provides superior resistance to rust and degradation caused by saltwater, high humidity, and constant exposure to the elements. This robust build ensures that the internal electrical connections remain clean and effective, preventing intermittent failures and guaranteeing a solid connection every time you turn the key.

Intuitive Control and Reliable Starting

Experience clear and confident control over your boat´s power systems. The 4-position functionality (Accessory-Off-Ignition-Start) provides versatile and logical operation.
* Accessory: Power your GPS, fish finder, stereo, and other electronics without engaging the engine.
* Off: Completely cuts power to the ignition and accessory circuits for safety and security.
* Ignition: Primes the engine´s electrical systems, fuel pump, and gauges for starting.

This distinct, four-stage operation prevents accidental starts and allows for efficient power management.

Enhanced Protection and Easy Installation

The SIERRA Ignition Switch includes a durable, weatherproof rubber boot that fits snugly over the key and faceplate. This essential barrier shields the internal mechanism from water spray, rain, dust, and damaging UV rays, significantly extending the life of the switch. Installation is made simple with a standard 7/8-inch mounting hole, making it a direct-fit replacement for many common marine dashboards and control panels.

Main Features:

* Marine-Grade Ignition Switch: Engineered specifically for use in freshwater and saltwater boating environments.
* 4-Position Functionality: Provides distinct settings for Accessory, Off, Ignition, and Start for complete control.
* Superior Corrosion Resistance: Built with high-quality brass components to prevent rust and ensure long-term reliability.
* Weatherproof Design: Includes a protective rubber boot to seal the switch against moisture, dust, and UV damage.
* Standardized Fit: Designed to mount easily in a common 7/8-inch diameter hole for straightforward installation or replacement.
* High-Capacity Solenoid Compatibility: Rated to handle the electrical load of a 30 Amp solenoid, suitable for a wide range of marine engines.

Technical Specifications
* Switch Type: 4-Position Keyed Ignition Switch



Traditional corrosion resistant construction.


Does not include push to choke.


Includes boot and 7/8´´ Mtg hole.


4 Position (Accessory-Off- Ignition-Start).


30 Amp Solenoid.



* Category: Electronics
* Subcategory: Electrical Connections

Upgrade your boat´s electrical connections with a switch that is synonymous with quality and dependability. Trust the SIERRA 4-Position Ignition Switch for a confident and reliable start, every time you turn the key