Tutor Auto Mercury Outboard Ignition Switch Replacement — 87-17009A5 / 87-17009A2 with 2 Keys, 3-Position, 6-Wire

Upgrade your Mercury outboard's starting reliability with the Tutor Auto ignition switch replacement. Built to withstand marine conditions, this 3-position control covers Off, Ignition, and Start, while a push-to-choke design helps with smoother warm-up. The non-conductive housing reduces the risk of shorts, and the brass contacts provide a dependable electrical path even in challenging weather or vibrations on the water.

Key features at a glance

• 2 included keys for quick access and added security
• 3-position control: Off, Ignition, Start for simple engine management
• 6-wire configuration with color-coded leads that align with factory wiring diagrams
• Corrosion-resistant polyester and brass construction designed for marine environments

Compatibility and fit are central. This replacement is designed to replace Mercury OE parts 87-17009A5 and 87-17009A2, among others. It is a direct replacement that aligns with OEM standards, ensuring a solid mechanical fit and reliable electrical contact. Please verify the part numbers on your control box before ordering to avoid mismatches.

Real-world use and benefits

• Replacing a worn ignition switch can restore smooth key action and reliable engine start, reducing dockside frustration during departures.
• Corrosion protection and a non-conductive housing help protect against oxidation and prevent potential shorts during long voyages.
• The color-coded wiring enables a straightforward installation process, even when upgrading multiple components at once.

Notes on installation and warranty. While this switch mirrors factory wiring conventions, it is not a genuine Mercury part; however, it meets OEM-style quality and is backed by a one-year warranty. Disconnect the battery before work, follow standard safety precautions, and consult your service manual if you’re unsure about wiring specifics. Tutor Auto’s support team is available if you need guidance.

What’s in the box

The package includes the ignition switch module with two keys and clear wiring instructions to help you align the leads quickly and confidently.