Seaview 18-Inch Radar Mast Mount for Raymarine and Garmin

Secure, reliable, and built for the long haul, the Seaview 18-Inch Radar Mast Mount delivers a stable platform for your radar system. Designed to accommodate popular 18-inch radar models from Raymarine, Garmin, and Navico (3G, 4G, BR24), this mount is the smart upgrade your vessel’s navigation setup deserves. It’s engineered to fit a 2 5/8-inch mast, providing a solid foundation that keeps your radar aligned for optimal performance in all conditions.

Why this Seaview mast mount stands out

• Exacting compatibility: Supports 18-inch radar units from Raymarine, Garmin, and Navico (3G, 4G, BR24), so you can pair your preferred radar with confidence.
• Precise mast fit: Specifically engineered for a 2 5/8-inch mast, ensuring a secure, stable installation that minimizes movement and vibration.
• Durable, marine-grade construction: Built to endure harsh marine environments, with materials and design focused on longevity in salt spray, UV exposure, and rough seas.
• Designed for optimal placement: Aligns your 18-inch radar for maximum field of view and dependable performance, helping you spot hazards and targets sooner.
• Trusted Seaview engineering: Leverages Seaview’s reputation for robust, purpose-built radar mounting solutions that ferry you from marina to offshore with confidence.

Who this is for

Ideal for boat owners and captains upgrading or installing an 18-inch radar on sailboats, sport yachts, fishing vessels, and offshore workboats. If you’re looking to elevate radar performance, ensure a secure mast installation, and maintain a clean, professional rig, this Seaview mount is designed to meet those needs.

What problems it solves

• Eliminates wobble and misalignment that can degrade radar performance on the open water.
• Provides a dedicated, high-mounting solution that protects radar cables and improves weather-resilient operation.
• Consolidates compatibility across major radar brands, reducing the need for multiple mounts or adapters during upgrades.

Practical use cases and setup tips

On coastal passages or offshore expeditions, install the SM18R to position your radar high enough for an expansive sweep while keeping essential electronics accessible for maintenance. For seasoned captains, pairing this mount with Raymarine or Garmin radars ensures a cohesive navigation system and streamlined rigging. In marina environments, the secure mast mount minimizes movement from wind to keep radar performance consistent as you pilot through busy traffic channels.

Installation notes

The SM18R is built around a straightforward, purpose-driven design for a 2 5/8-inch mast. Verify your radar’s mounting pattern and confirm mast diameter before installation to ensure a precise, secure fit. If you’re upgrading from a different diameter or different radar model, this Seaview mount is compatible with a range of popular 18-inch radar units, simplifying the transition to an optimized navigation setup.

Part Number: SM18R