Cole Hersee Ignition Switches
Cole Hersee Ignition Switches: Built for Demanding Applications
Cole Hersee has been engineering heavy-duty electrical switching products since 1924, and their ignition switches represent some of the most trusted components in the automotive, marine, and commercial trucking industries. With a century of purpose-built engineering behind them, Cole Hersee ignition switches are a go-to choice for original equipment manufacturers and professional technicians alike.
A Versatile Switch Lineup for Any Low-Voltage DC Application
Cole Hersee ignition switches are available in two, three, and four-position configurations, covering a wide range of circuit needs — from simple Off/On setups to more complex Accessory-Off-Ignition/Start layouts. Standard electrical ratings typically run 10 amps for accessory and ignition circuits and 5 amps for start circuits at 12V DC, making them suitable for everything from light vehicles to heavy machinery.
What sets Cole Hersee apart is the breadth of actuation options available across the lineup. Switches can be actuated by a coded key and tumbler lock, Cole Hersee's patented Hencol keyed lock, or a lever — with lever designs available in military, short-lever, and long-lever configurations. This flexibility means the right switch is available whether you're wiring a work truck, a marine vessel, or specialty off-road equipment.
Marine-Grade Durability Where It Counts
Cole Hersee's marine-construction ignition switches, such as the M-712 series, feature rugged brass housings, chrome-plated brass face nuts, and mounting hardware specifically engineered to resist the corrosion and moisture that come with saltwater environments. Many models incorporate O-ring seals in the base and stem, providing an additional barrier against moisture intrusion and contaminants — a critical detail in marine and outdoor power equipment applications.
- Brass and zinc die-cast casings for corrosion resistance in harsh environments
- O-ring sealed stems and bases on select models to block moisture and dirt
- Threaded tab and blade terminal options for straightforward, secure wiring connections
- Individually coded key cylinders to deter unauthorized starts
- Spring-return mechanisms on select models to prevent accidental starter re-engagement
- Knurled adapter face nuts on some variants to accommodate multiple panel-hole diameters
OEM Heritage and Broad Compatibility
Cole Hersee designs and manufactures ignition switches for original equipment manufacturers across virtually all vehicle and equipment types. The switches are engineered for 12V DC systems but are compatible with a range of low-voltage DC applications beyond traditional vehicle installations. Since its acquisition by Littelfuse in 2010, the brand has continued to deliver the same rugged engineering quality while expanding its product portfolio.
Whether you're replacing a worn switch on a commercial truck, refitting a boat helm panel, or sourcing components for an OEM build, Cole Hersee's ignition switch lineup offers proven performance backed by decades of industry trust. Browse the full selection of ignition switches or explore the complete Cole Hersee brand catalog to find the right solution for your application.