87-88107A5 Boat Ignition Switch with 2 Keys 6 Wire

AUTOBABA's 87-88107A5 boat ignition switch is a direct-fit replacement for Mercury outboard motors, supplying a 6-wire, push-choke ignition with two keys for reliable engine starting and security.

When an older ignition switch on your Mercury outboard begins to wear, corrode, or fail, replacing it with a robust, marine-rated unit prevents electrical faults and restores dependable starting. This AUTOBABA replacement matches OEM part numbers 87-88107, 87-88107A5, and 7-1155 and fits most Mercury outboards from 1994 onward. Engineered for saltwater exposure and panel-mounted installations up to 5/8" thick, it provides a straightforward swap-in solution for DIYers and pro techs.

Will this switch fit my Mercury outboard and mounting panel?

Yes — compatibility covers Mercury outboard motors 1994 and later when OEM part numbers align. It is designed for side-mount control panels with a maximum panel thickness of 5/8" and uses the same 6-wire interface common to these systems.

• Fits models referencing OEM numbers 87-88107, 87-88107A5, 7-1155.
• Accepts panels up to 5/8" thickness for straightforward retrofit.
• 6-wire connector pattern matches typical Mercury ignition harnesses.
• Includes two keys for spare and onboard security.

How durable is the AUTOBABA ignition switch in marine conditions?

This switch uses marine-grade glass-filled polyester for its housing to resist corrosion and electrical shorts in damp, salty environments. Push-button choke options and non-conductive construction reduce failure points and help maintain reliable operation season after season.

• Glass-filled polyester housing resists saltwater corrosion and UV exposure.
• Non-conductive casing minimizes risk of shorts under wet conditions.
• Push-choke design reduces exposed contacts that can corrode.
• Rated up to 30 A at 12 V for common starting and accessory loads.

What electrical and installation specs should I know?

The switch is rated for 30 A at 12 V and connects via six wires, supporting ignition, accessory, and choke functions found on Mercury controls. Installation is intended as a direct swap where wiring color and terminal layout match the OEM harness; basic hand tools and attention to wiring diagrams will complete most installs.

• Electrical rating: 30 A at 12 V for ignition and accessories.
• 6-wire connector matches Mercury harness configurations.
• Side-mount footprint and panel cutoff: up to 5/8" thick panels.
• Includes two keyed switches for onboard convenience and backup.

What if I need help or encounter issues after purchase?

AUTOBABA backs this product with one year of quality support. If you’re unsure about fitment, wiring, or operation, contact AUTOBABA customer service for troubleshooting guidance or to request warranty assistance. Keep your receipt and photos of the part and mounting for faster help.

• 1-year product quality support from AUTOBABA.
• Customer assistance available for fitment and wiring questions.
• Keep proof of purchase and product photos for warranty claims.
• Simple swap-in installation usually avoids professional service.

Who is this for: Boat owners and marine technicians seeking a durable, OEM-equivalent replacement ignition switch for Mercury outboards manufactured from 1994 onward. It’s ideal for anyone wanting corrosion-resistant construction, a straightforward 6-wire electrical match to existing harnesses, and two keys for routine use and security. If you operate in saltwater or want a dependable replacement that aligns with Mercury part numbers 87-88107 / 87-88107A5 / 7-1155, this AUTOBABA switch is a practical, cost-effective choice.