Sierra MP41000 Mercury 3 Position Ignition Switch

Sierra MP41000 Ignition Switch - 3 Position Magneto

Sierra Marine's replacement engine components are manufactured to meet or exceed OEM requirements. This ignition switch provides maximum corrosion protection and features a non-conductive housing that eliminates potential shorts. It also features an inner seal between the cylinder lock and contact plate. 

Frequently Asked Questions

What is the Sierra MP41000 Ignition Switch - 3 Position Magneto used for?

The Sierra MP41000 is a replacement marine ignition switch with three positions: Off, Run, and Start. It features push-to-choke operation, a non-conductive housing, and an inner seal between the cylinder lock and contact plate.

What are the switch positions on the Sierra MP41000 ignition switch?

The Sierra MP41000 has three switch positions: Off, Run, and Start. It also provides push-to-choke operation for applications requiring that function.

What panel thickness and hole size does the Sierra MP41000 fit?

The Sierra MP41000 has a 7/8" hole size and a short 5/8" length with a maximum panel thickness of 5/8". Verify these dimensions against your existing installation before selecting the switch.

What are the electrical ratings of the Sierra MP41000 ignition switch?

The Sierra MP41000 is rated for 7 amps at 12 VDC for the choke, 15 amps at 12 VDC for the ignition, and 30 amps at 12 VDC for the solenoid. It uses a 6 screw tab terminal type.

What is the Sierra MP41000 ignition switch made from?

The Sierra MP41000 uses marine-grade glass-filled polyester for its material. It has a non-conductive housing and an inner seal between the cylinder lock and contact plate.

Which part numbers are interchangeable with the Sierra MP41000 ignition switch?

The Sierra MP41000 is listed as interchangeable with Mercury Marine 87-17393, 87-88107, and 87-88107A5; Mercury Sport Jet 87-88107 and 87-88107A5; and Seadog 420381-1.