Sierra MP41070-2 Push to Choke 3-Position Ignition Switch for Mercury Control Boxes, White

The Sierra MP41070-2 is a 3-position ignition switch (Off-Run-Start) built for push to choke Mercury control box applications. It is designed as a panel-mount replacement switch for boats using Mercury control boxes, giving reliable ignition and choke control from a single compact unit. The switch body is molded from polyester for resistance to the moisture and vibration common in a marine engine compartment, and it terminates in 6 color coded wire leads that are potted for a sealed, corrosion-resistant connection. The wire lead colors match factory color codes, so the switch wires up to the existing harness without guesswork.

Sierra MP41070-2 is a short length switch rated for a maximum panel thickness of 5/8 inch and mounts through a 7/8 inch hole. It secures with a hex black plastic face nut, and no back up nut is required for installation, simplifying the swap for a boat owner or technician working from the front of the panel. Electrically, the switch is rated for 15 Amps at 12 Volts DC on the ignition circuit and 30 Amps at 12 Volts DC on the solenoid circuit, matching the demands of a cranking circuit on gasoline marine engines. The white finish matches common Mercury dash and control box color schemes. This switch is intended for push to choke Mercury control box setups specifically, so confirm your control box uses this configuration before ordering.

Specifications

• Brand: Sierra
• Manufacturer Part Number: MP41070-2
• Application: Push to Choke / Mercury Control Box Applications
• Material: Polyester
• Length: Short, 5/8 inch maximum panel thickness
• Terminal Type: 6 Color Coded Wire Leads/Potted
• Back Up Nut: Not Required
• Face Nut: Hex black plastic face nut
• Hole Size: 7/8 inch
• Ignition Rating: 15 Amps at 12 Volts DC
• Solenoid Rating: 30 Amps at 12 Volts DC
• Number of Positions: 3-Position (Off-Run-Start)
• Color: White
• Weight: 0.3 pounds

Fitment

• Mercury push to choke control box applications

Replaces (OEM)

• No OEM cross-reference numbers available

Frequently Asked Questions

What does the Sierra MP41070-2 fit? The MP41070-2 is built for push to choke Mercury control box applications, replacing the ignition switch used in that setup.

Is this a 2-position or 3-position switch? MP41070-2 is a 3-position switch with Off-Run-Start positions, giving a single switch for both ignition and starting.

What color is the MP41070-2 switch? It is finished in white, matching common Mercury dash and control box color schemes.

What is the maximum panel thickness for installation? The Sierra MP41070-2 is a short length switch rated for a maximum panel thickness of 5/8 inch.

What size mounting hole does this switch need? MP41070-2 mounts through a 7/8 inch hole in the dash or control panel.

Do I need a back up nut to install this switch? No, a back up nut is not required for the MP41070-2; it secures with a hex black plastic face nut on the front of the panel.

How many wire leads does the MP41070-2 have and are they marked? The switch has 6 color coded wire leads that are potted, and the lead colors match factory color codes for straightforward wiring.

What amperage is the MP41070-2 rated for? The ignition circuit is rated 15 Amps at 12 Volts DC and the solenoid circuit is rated 30 Amps at 12 Volts DC.

What material is the switch housing made from? The Sierra MP41070-2 housing is made from polyester, chosen for durability in a marine engine compartment.

How much does the MP41070-2 weigh? The Sierra MP41070-2 ignition switch weighs 0.3 pounds.

Is the Sierra MP41070-2 equivalent to the original Mercury switch? Sierra manufactures the MP41070-2 to meet or exceed the specifications of the original equipment ignition switch it replaces in push to choke Mercury control box applications.

Will the MP41070-2 work with any boat control box? MP41070-2 is designed specifically for push to choke Mercury control box applications, so it should be matched to that control box configuration rather than used as a universal switch.