--- 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: "₱3725" currency: PHP in_stock: true reviews_count: 13 category: "Skarummer" url: https://www.desertcart.ph/products/320420743-boat-ignition-switch-with-key-replacement-for-mercury-mariner-outboard store_origin: PH region: Philippines --- # High-quality brass for superior conductivity 3-position OFF-RUN-START switch Includes 2 precision-cut keys 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:** ₱3725 **Availability:** ✅ In Stock ## Summary > ⚓ Ignite your adventure with flawless starts every time! ## 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?** ₱3725 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/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 - • **Confidence with Coverage:** Backed by a 24-month warranty and 100% pre-shipment testing for worry-free boating. - • **Plug & Play Installation:** Color-coded wires match factory specs—no splicing, no hassle, just instant upgrade. - • **Perfect OEM Compatibility:** Direct replacement for Mercury 87-17009A2/87-17009A5 and Sierra MP41070 series—fit guaranteed. - • **Seamless 3-Position Control:** Effortlessly toggle OFF, RUN, and START modes with precision engineering. - • **Durability Meets Performance:** Crafted from high-performance polyester and brass for long-lasting reliability and safety. ## Overview The SKARUMMER Boat Ignition Switch is a premium aftermarket replacement designed for Mercury Mariner Outboard motors. Featuring a 3-position OFF-RUN-START design with 6-wire connectors, it ensures seamless engine control. Made from durable polyester and high-quality brass, it guarantees excellent electrical conductivity and long-term reliability. This plug-and-play switch includes two keys and matches factory wiring colors for easy installation. Compatible with Mercury OE numbers 87-17009A2 and 87-17009A5, it comes with a 24-month warranty, making it a trusted upgrade for professional boaters seeking dependable ignition performance. ## Description Product description Features PROFESSIONAL DESIGN 3 Position OFF - RUN- STAR and 6 wires for push to choke. HIGH QUALITY Made of high performance polyester and high quality brass, which provides safety, durability and excellent electrical conductivity. EASY INSTALLATION Colors on switch wires match factory color codes. Direct replacement, a simple plug & play with no wire splicing. Specifications Brand: SKARUMMER Material: Brass + Plastic Color: Black Replacing OE Number for Reference: 87-17009A2 87-17009A5 MP41070-2 MP41070-1 MP41070 Package List: 1 * Ignition Key Switch + 2 * Keys Size: 57 * 37mm / 2.3 * 1.5in Package Weight: 3.99 Ounces Fitment: For Mercury Mariner Outboard Remote Control Box Note This is a high quality aftermarket product but not genuine. It is advisable to check the existing Part Number before placing an order. Review: Good quality - Worked just fine 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 | #17,177 in Automotive ( See Top 100 in Automotive ) #9 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 Amps | | Customer Reviews | 4.2 out of 5 stars 525 Reviews | | International Protection Rating | IP00 | | Item Weight | 0.1 Kilograms | | Lower Temperature Rating | 1 Degrees Celsius | | Manufacturer | SKARUMMER | | Material Type | Polyester,Brass | | Model | 87-17009A2 | | Mounting Type | Plug-In Mount | | Number of Items | 1 | | Number of Positions | 3 | | Operating Voltage | 12 Volts | | Operation Mode | Off | | Part Number | 87-17009A2 87-17009A5 | | Smart Home Compatibility | Not Smart Home Compatible | | Specification Met | Oe | | Switch Type | Ignition Switch | | Terminal | Spade | | 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) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good quality *by L***A on March 15, 2026* Worked just fine ### ⭐⭐⭐⭐⭐ 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 - Outboard 17179T1 84-17179T 1 Cable Main Wire Harness for Mercury Marine MerCruiser Quicksilver 881170A15 Remote Control Box, 8 Pins, 15ft/4.57m Length --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ph/products/320420743-boat-ignition-switch-with-key-replacement-for-mercury-mariner-outboard](https://www.desertcart.ph/products/320420743-boat-ignition-switch-with-key-replacement-for-mercury-mariner-outboard) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-07-07*