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The SKARUMMER Boat Ignition Switch is a professional-grade replacement designed for Mercury Mariner outboard motors. Featuring a 3-position OFF-RUN-START design and 6-wire plug & play connectors, it guarantees easy installation and reliable engine starts. Constructed with high-performance polyester and brass contacts, it offers durability and excellent electrical conductivity. Compatible with Mercury and Sierra models, it comes with a 24-month warranty for peace of mind.



| ASIN | B0933LB56Z |
| Actuator Type | Ignition |
| Best Sellers Rank | #36,018 in Automotive ( See Top 100 in Automotive ) #43 in Automotive Replacement Ignition Starter Switches |
| Brand | SKARUMMER |
| Brand Name | SKARUMMER |
| Circuit Type | 3-way |
| Color | Black |
| Compatible Devices | Mercury Outboard Control Box 87-17009A2, 87-17009A5, Sierra MP41070-2, MP41070-1, MP41070 |
| Compatible with Vehicle Type | Boat |
| Connectivity Protocol | X-10 |
| Connector Type | Plug In |
| Contact Material | Brass |
| Contact Type | Normally Open |
| Control Method | Touch |
| Control Type | Ignition Control |
| Controller Type | Push Button |
| Current Rating | 2 A |
| Customer Reviews | 4.3 out of 5 stars 542 Reviews |
| International Protection Rating | IP00 |
| Item Weight | 0.1 kg |
| Lower Temperature Rating | 1 ยฐC |
| Manufacturer | SKARUMMER |
| Material Type | Polyester,Brass |
| Model | 87-17009A2 |
| Mounting Type | Plug-In Mount |
| Number of Items | 1 |
| Number of Positions | 6 |
| Operating Voltage | 12 volts |
| Operation Mode | Off |
| Part Number | 87-17009A2 87-17009A5 |
| Specification Met | Oe |
| Switch Type | Ignition Switch |
| Terminal | Spade Or Blade |
| UPC | 760668658707 |
| Unit Count | 1 Count |
V**A
Nice!
Nice product and works great
S**S
The switch fixed my problem with my engine
The switch is exactly what I ordered and arrived on time and was priced comparable to other places I looked
D**K
My motor would not shut off when turned the key back to the off position.
The wires were smaller diameter than the one that I had in my boat. A wiring diagram would have made it easier to use. I had to go from a 6 to a 5 wire and keep the old choke separate from the key ๐ . It seems to be working fine now after about 50-60 starts of the motor. Time will tell! ,,, It lasted a little more than one season.I got the broken key out of the old ignition and it went back in. I'm not sure 100% what the problem was. I'll let you know if it happens again.
L**A
Good quality
Worked just fine
R**.
Looked like a great switch!
This switch would not work in my application but it appeared to be well made.
D**W
DANGEROUS! WARNING!
Don't be dumb like me. You are looking at purchasing a component that starts and stops your motor. Buy an OEM version online for $70. I am thoroughly pissed off with this ignition. I purchased one back in 2024 and it lasted about 6 months before the ignition housing broke down the center. So of course I ordered a second one thinking I just had bad luck. The second ignition I bought lasted about 2 trips before sticking in the start position. Even with the key removed, it cranked the motor. I had to kill it with the battery switch. Fortunately we were not on the water when this happened. Save yourself the time and get an OEM ignition. The OEM kit will come with the proper heat shrink as well. Don't buy this thing. It will work for a little bit, then break right past warranty and you'll be rewiring an ignition again. Do it right the first time and buy an OEM one.
A**Y
Great Budget Ignitiom
Bought this to replace my ignition for my Key West with a 150 Mercury Optimax and it has worked great. The wires were color coded to match the existing colored wires.
S**.
Itโll start a boat
Installed and lasted about a year and some change before it went out on me again. Did the job well enough; but it does not have the push to choke feature so Iโve had to use my high idle lever, and from day one the key always falls out with any minor vibrations or bumps from choppy water. Not the best but not the worst either.
L**C
Bon prix
Trรจs bon et facile d installation
A**.
Great price for something that works and will be used occasionally.
Works as should, fits as should.Mercury dealer wanted over $150.
G**T
Interrupteur d'allumage de bateau conforme a la description
Est conforme en tout point
B**A
Good ignition for outside equipment.
Used on my John Deere lawnmower as the previous one corroded. It's been on it now for over 3 weeks and seems to be working well. No issues with power or function. I like that the key seals over the ignition so water can't get into it and corrode it.
W**W
Pretty good and wires match factory
Pretty much plug and play, couple of my ends were diffrent so I ended up soldering them
Trustpilot
1 week ago
1 month ago