



⚓ Ignite your marine adventures with confidence and style!
The Sierra MP41000 Ignition Switch is a durable, 3-position magneto switch designed specifically for high horsepower marine engines. Featuring push-to-choke functionality, superior corrosion resistance, and a non-conductive housing, it ensures reliable starts and long-lasting performance in demanding marine environments. Easy to install with a panel mount design, it meets OEM standards and is trusted by boat builders and engine manufacturers alike.



| ASIN | B00144D77E |
| Actuator Type | Rotary |
| Best Sellers Rank | #225,398 in Automotive ( See Top 100 in Automotive ) #614 in Automotive Replacement Ignition Starter Switches |
| Brand Name | Sierra |
| Circuit Type | 3-way |
| Color | white |
| Connectivity Protocol | X-10 |
| Connector Type | Crimp |
| Contact Material | Stainless Steel |
| Contact Type | Normally Open |
| Control Method | Touch |
| Current Rating | 1 Amps |
| Customer Reviews | 4.4 4.4 out of 5 stars (964) |
| Global Trade Identification Number | 00023121410008, 00808282367701 |
| Included Components | Sierra International MP41000 Ignition Switch |
| International Protection Rating | IP00 |
| Item Dimensions | 4.87 x 1.62 x 7 inches |
| Item Type Name | Sierra International MP41000 Ignition Switch |
| Item Weight | 0.1 Kilograms |
| Lower Temperature Rating | 1 Degrees Fahrenheit |
| Manufacturer | Sierra |
| Model | MP41000 |
| Mounting Type | Panel Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operating Voltage | 1 Volts |
| Operation Mode | MOTOR |
| Specification Met | Oem |
| Switch Type | Ignition Switch |
| Terminal | Marine |
| UPC | 023121410008 808282367701 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 1 Degrees Fahrenheit |
| Warranty Description | Manufacturer |
| Wattage | 84 watts |
D**Y
Perfect fit, works great
Had to replace the switch in my boat. Easy to replace and works great
J**N
Great Switch
Used this to replace the ignition on a 2004 Mercury 90hp . The instructions were clear as to which wire colors went to each terminal. Good quality hardware as well.
G**G
it works.
works perfect on my Mercury 90 hp
A**.
Great replacement Key Switch
Installed it on a 1996 Mercury Force 90hp 2 stroke, worked great and fired up and the second turn of the key. Matched the old switch perfectly and all wires plugged in fine. Hopefully it lasts.
D**M
Working fine. Here's the wiring diagram.
Easy to install. Works smoothly. Used to replace a bad ignition seitch on our 1986 bomber scout bass boat with a 55HP Johnson. Mine came with wiring diagram which I have included for those who may still receive a unit without a diagram. I agree with one reviewer who said that two of the screws are uncomfortably close to touching after installation. I have also included a photo for reference. This can easily be rectified by cutting down one of the screws but I didn't find it necessary. You can see the two screws in the center area of the assembly in the photo.
S**N
Defective
Easy to install, Durability is no so good. Fit is OK, performance would be great I'd it had not had a Crack already in it when I received it. But, I called Customer Service and they quickly sent me a replacement. I would buy from seller again.
B**.
The very best i found
Solid , key turns very well ,brass nut that wont strip like the junk plastic. Works very well!!
J**R
High quality
This replaced the ignition switch on my 1990 evinrude v4 90. Be sure to know where your existing wires are on your old switch and where they go on this. The wire color and letter stamp on old switch will mostly match up to this switch. Do one wire at a time to help keep them straight. Mine was slightly different, but the wiring guide included helped. Good quality, nice hardware included, fits like OEM!
H**R
Yes it was both easy n great for the money
D**E
works great
W**R
Standard Ignition switch seems to made well. Only in the boat for a short time. Installed easily and works well. Matched wiring colours perfectly. Good value for the dollar compare to other sites.
M**K
perfect for your controls best quality
M**.
Has 6 leads but 7 letters describing each lead. Have spent 3 hours on guess and check and still can't get it setup properly. The diagram on the back of the package doesn't match the actual part.
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