---
product_id: 320420743
title: "Boat Ignition Switch with Key Replacement for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors - Replace Mercury Ignition Switch 87-17009A2 87-17009A5"
brand: "skarummer"
price: "€ 55.39"
currency: EUR
in_stock: true
reviews_count: 13
category: "Skarummer"
url: https://www.desertcart.be/products/320420743-boat-ignition-switch-with-key-replacement-for-mercury-mariner-outboard
store_origin: BE
region: Belgium
---

# High conductivity brass contacts 6-wire plug & play connector 3-position OFF-RUN-START switch Boat Ignition Switch with Key Replacement for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors - Replace Mercury Ignition Switch 87-17009A2 87-17009A5

**Brand:** skarummer
**Price:** € 55.39
**Availability:** ✅ In Stock

## Summary

> ⚓ Ignite your adventure with flawless power at your fingertips!

## Quick Answers

- **What is this?** Boat Ignition Switch with Key Replacement for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors - Replace Mercury Ignition Switch 87-17009A2 87-17009A5 by skarummer
- **How much does it cost?** € 55.39 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/320420743-boat-ignition-switch-with-key-replacement-for-mercury-mariner-outboard)

## Best For

- skarummer enthusiasts

## Why This Product

- Trusted skarummer brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Perfection:** Color-coded 6-wire connectors match factory wiring—no splicing, no hassle, just instant fit.
- • **Trusted OEM Replacement:** Directly replaces Mercury 87-17009A2/87-17009A5 and Sierra MP41070 series with 100% tested reliability.
- • **Confidence with Coverage:** Backed by a 24-month warranty and dedicated customer support—buy now, sail worry-free.
- • **Seamless Start Every Time:** 3-position ignition switch ensures smooth OFF, RUN, and START control for your Mercury outboard.
- • **Built to Last on the Water:** Durable polyester body with premium brass contacts for superior electrical performance and corrosion resistance.

## Overview

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.

## Description

Buy Boat Ignition Switch with Key Replacement for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors - Replace Mercury Ignition Switch 87-17009A2 87-17009A5: Ignition Starter - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Nice! - Nice product and works great
Review: 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

## Features

- REPLACEMENT IGNITION STARTER SWITCHES - An ignition switch, starter switch or start switch is a switch in the control system of a motor vehicle that activates the main electrical systems for the vehicle. If you have to wiggle the key hard or the boat won't start when the key is turned, it means you need to replace a new engine starter ignition key switch for your boat.
- PROFESSIONAL DESIGN - 3 Position OFF - RUN- STAR and 6 wires for push to choke. This Boat Engine Ignition Switch made of high performance polyester and high quality brass, which provides safety, durability and excellent electrical conductivity. You can buy it with great confidence.
- COMPATIBILITY - This Ignition Key Switch replacement for most Mercury Outboard Control Box, replace OE number for reference: Mercury 87-17009A2 87-17009A5, Sierra MP41070-2 MP41070-1 MP41070. Please kindly check the fitment to ensure this will fit your model before ordering.
- EASY INSTALLATION - Colors on switch wires match factory color codes. Direct replacement, a simple plug & play with no wire splicing. Meets or exceeds OEM standards, 100% tested before shipping. Please kindly check the fitment to ensure this will fit your model before ordering.
- 24-MONTH WARRANTY - Order from SKARUMMER, we offer 24 month warranty. If you have any other questions on our Boat Engine Ignition Key Switch, please contact us at the first time, We are always here to support you. You can buy it with confidence.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 °C |
| 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 |

## Product Details

- **Operation Mode:** Off
- **Current Rating:** 2 Amps
- **Operating Voltage:** 12 Volts
- **Contact Type:** Normally Open
- **Connector Type:** Plug In
- **Brand:** SKARUMMER
- **Terminal:** Spade
- **Circuit Type:** 3-way
- **Actuator Type:** Ignition
- **Contact Material:** Brass

## Images

![Boat Ignition Switch with Key Replacement for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors - Replace Mercury Ignition Switch 87-17009A2 87-17009A5 - Image 1](https://m.media-amazon.com/images/I/61zqPy6gh7S.jpg)
![Boat Ignition Switch with Key Replacement for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors - Replace Mercury Ignition Switch 87-17009A2 87-17009A5 - Image 2](https://m.media-amazon.com/images/I/61rj-7d32YS.jpg)
![Boat Ignition Switch with Key Replacement for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors - Replace Mercury Ignition Switch 87-17009A2 87-17009A5 - Image 3](https://m.media-amazon.com/images/I/71nfMthx4oS.jpg)
![Boat Ignition Switch with Key Replacement for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors - Replace Mercury Ignition Switch 87-17009A2 87-17009A5 - Image 4](https://m.media-amazon.com/images/I/71zQw-Y0RvS.jpg)
![Boat Ignition Switch with Key Replacement for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors - Replace Mercury Ignition Switch 87-17009A2 87-17009A5 - Image 5](https://m.media-amazon.com/images/I/61Jn+lQcy1S.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice!
*by V***A on September 1, 2026*

Nice product and works great

### ⭐⭐⭐⭐⭐ The switch fixed my problem with my engine
*by S***S on May 22, 2026*

The switch is exactly what I ordered and arrived on time and was priced comparable to other places I looked

### ⭐⭐⭐⭐ My motor would not shut off when turned the key back to the off position.
*by D***K on September 16, 2022*

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 🔑 . 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.

## Frequently Bought Together

- Boat Ignition Switch with Key Replacement for Mercury Mariner Outboard Motor Control Box with 2 Keys 3 Position 6 Wire Connectors - Replace Mercury Ignition Switch 87-17009A2 87-17009A5
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---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-09-21*