Mercury – Under-Helm GPS Mount Kit | SmartCraft / NMEA 2000 | 98-8M6009519

Overview

Some helm layouts don’t have the space for a top-side antenna mount, and that’s where this compact under-helm solution comes in. The Mercury 98-8M6009519 Under-Helm GPS Mount Kit creates a clean, protected mounting point beneath the helm or console for SmartCraft or NMEA 2000 GPS antennas. It keeps the antenna secure, out of sight, and positioned for dependable signal reception. It’s the same under-helm mount included with the 8M6012227 GPS kit—now available on its own for replacement or standalone installs.

Key Features

• Under-Helm Mounting – Provides a secure hidden mounting point for SmartCraft or NMEA 2000 GPS antennas.
• Compact Profile – Fits easily beneath helms, consoles, or tight rigging spaces.
• Protected Placement – Keeps the antenna shielded from weather and direct exposure.
• OEM Replacement Mount – Same under-helm mount included with the 8M6012227 GPS kit.
• Durable Marine Housing – Built to handle vibration, heat, and long-term use.
• Simple Installation – Mounts cleanly using standard hardware on flat interior surfaces.

Compatibility

• SmartCraft GPS antennas
• NMEA 2000 GPS antennas
• Replacement mount for GPS Kit 8M6012227
• Boats requiring a protected under-helm GPS mounting location

Performance & Practical Benefits

Placing the GPS antenna under the helm keeps it tucked away while still giving the network steady, responsive satellite data. The mount provides a stable base that minimizes vibration, helping the antenna maintain a clear lock and deliver accurate speed and position information for SmartCraft and NMEA 2000 functions. It’s a practical solution for helms with limited topside space or aesthetics that call for a hidden installation.

Why Buy OEM

GPS antennas depend on proper alignment and a mount that holds steady through heat, motion, and long days on the water. Mercury’s OEM design matches the antenna footprint exactly and provides the durability needed for clean, uninterrupted signal performance. Aftermarket brackets often introduce flex or misalignment, but the factory mount ensures a secure, long-lasting fit.

FAQ

Q1: Is this the same mount used in the 8M6012227 GPS kit?
Yes. This is the standalone version of the under-helm mount included with that kit.

Q2: Will GPS performance suffer under the helm?
No, as long as the antenna has reasonable exposure. Many under-helm installations perform very well.

Q3: What antennas fit this mount?
Any Mercury SmartCraft or NMEA 2000 GPS antenna built for the standard Mercury mounting pattern.

Q4: Can this be placed on curved surfaces?
It should be mounted on a flat interior surface for proper alignment and stability.

Q5: Is this mount durable enough for saltwater boats?
Yes. The housing and hardware are designed for long-term marine exposure.