SEACHOICE brass marine ignition starter switch, 3-position off/ignition/start — 2 keys, heavy-duty fit for panels up to 1"

The Seachoice 3-Position Heavy Duty Ignition Starter Switch is a durable brass marine ignition switch with off/ignition/start positions, three terminals, and two keys for reliable engine starting.

This ignition starter switch is designed for boats, personal watercraft, and small marine engines where a compact, robust master switch is required. Built from brass for corrosion resistance and longevity, the unit fits panels up to 1 inch thick and includes hardware compatible with standard mounting threads. It’s a straightforward OEM-style replacement or component for new installations and refits, giving a dependable electrical control point for powering and starting your engine.

How sturdy is this starter switch for marine use?

The switch uses brass construction to resist saltwater corrosion and mechanical wear, making it suitable for salty or humid environments typically encountered on boats. Heavy-duty internals and three-position functionality are intended for repeated use over many seasons.

• Brass housing for improved corrosion resistance and durability
• Heavy-duty design intended for frequent operation
• Three-position operation: off / ignition / start
• Includes two identical keys for convenience and backup

Will it fit my dash or replacement opening?

The switch is manufactured to fit common panel thicknesses and mounting thread sizes found on many marine dashboards. Check the mounting stem dimensions to confirm compatibility with your existing panel or new console cutout.

• Mounting stem length: 1-7/32 inches to reach through most panels
• Thread diameter: 13/16 inch – 20 for standard secure fastening
• Accepts panel thicknesses up to 1 inch for versatile installations
• Compact profile suits new builds, refits, and OEM replacements

What electrical connections and features does it offer?

This ignition switch has three terminals to handle the key-on and starter functions commonly required on small marine engines. The terminal arrangement is simple to wire for engine power, starter solenoid, and ground or accessory circuits depending on your setup.

• Three terminals for essential ignition and starter wiring
• Clear off/ignition/start positions to control engine power and crank
• Supplied with two keys so you have a spare onboard
• Manufacturer part number 50-11621 for easy cross-referencing

How easy is installation and maintenance?

Installation is straightforward for anyone familiar with basic marine electrical work. The threaded mounting and standard terminal layout reduce installation time, and the brass body requires minimal upkeep beyond periodic inspection and cleaning.

• Simple threaded mounting with standard 13/16-20 fastening
• Terminals accessible for quick wiring and troubleshooting
• Requires only routine checks for corrosion and secure mounting
• Comes with two keys to avoid downtime from a lost key

Who is this for: The Seachoice 3-Position Heavy Duty Ignition Starter Switch is aimed at boat owners, marine technicians, and DIY enthusiasts replacing a worn ignition switch or installing a reliable starter control in a new console. It suits small to medium recreational boats, fishing vessels, and watercraft that need a compact, long-lasting ignition solution with straightforward wiring and standard mounting dimensions.