âš“ Ignite your marine journey with unmatched reliability!
The Sierra MP39770 Marine Ignition Switch is a compact, 3-position (Off-Run-Start) ignition switch rated at 15 Amps and 12V DC. Designed with brass contacts and an IP54 rating, it offers durable, water-resistant performance ideal for marine environments. Made in the USA, this switch ensures precise control and long-lasting reliability for your boat’s ignition system.
| Operation Mode | ON-OFF |
| Operating Voltage | 12 Volts |
| Contact Type | Normally Open |
| Brand | Sierra |
| Terminal | Marine |
| Item dimensions L x W x H | 0.39 x 0.39 x 0.39 inches |
| Mounting Type | Face |
| Actuator Type | Ignition |
| Contact Material | Brass |
| International Protection Rating | IP541 |
| Number of Positions | 3 |
| Control Method | Touch |
| Connectivity Protocol | X-10 |
| Color | black |
| Unit Count | 1.0 Count |
| Global Trade Identification Number | 00808282367664 |
| Manufacturer | Sierra International |
| UPC | 808282367664 023121397705 |
| Item Weight | 4 ounces |
| Product Dimensions | 0.39 x 0.39 x 0.39 inches |
| Country of Origin | USA |
| Item model number | MP39770 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | MP39770 |
K**N
Reliable and Built for Marine Conditions
The Sierra MP39770 ignition switch has been a solid upgrade for my boat. It’s well-built, with a sturdy feel that inspires confidence, even in tough marine conditions. The installation was straightforward, and the included instructions were clear and easy to follow.What I appreciate most is the smooth operation – the key turns effortlessly, and the connections feel secure. It’s clearly designed to withstand saltwater exposure and the wear and tear of regular use, which is exactly what I needed.Used it for an older Maxim.If you’re looking for a reliable ignition switch that’s built to last, this one is worth considering. It’s a dependable replacement or upgrade for your marine setup, and I’d recommend it to any boat owner.
B**E
Perfect, exactly what .
Perfect replacement for the OEM switch on my 2001 mercruiser 5.0 INBD/OUTBD.
R**B
Perfect fit
Works great, quality build and fit. Replacement was a breeze. Great value for the money worked awesome on my 24' bayliner trophy
J**Z
Screws not included.
Good product, just doesn’t include the screws to make the connection and the ones coming off the previous ignition switch are larger and had to drill out the tabs and use a nut to attach the wires.
M**E
Easy to install and to get keys made
I bought this for a replacement ignition switch for my Bayliner 205 boat. It was easy to install, and importantly for me, it was easy to get extra keys made from blanks readily available at the local Ace Hardware stores. My old switch was still working fine, but I had lost the other key that came with that brand, and I couldn't find anywhere to get duplicate keys made. With this switch, I now have one for the marina, a close friend, me and an extra key in the truck in case I lose my key. Boat starts right up with this ignition switch.
R**O
Worked perfectly
Used it to repair a 2003 Bayliner BR205. Functioned perfectly.
G**N
order envelope arrived on time, but ignition switch was not there
ordered again, know it will work, but shipping envelope was not properly sealed
W**E
Switch
Excellent
Trustpilot
1 day ago
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