Heavy-Duty Marine Electronics Short Arm Mount – 2.25" D Ball System with 11" x 3" Universal Base for Large Fishfinders & Chartplotters

Built for demanding marine environments, this heavy-duty short arm mounting solution gives you rock-solid support for today’s larger fishfinders and GPS chartplotters. Designed around the rugged 2.25" D-size ball-and-socket system, this mount delivers exceptional holding strength, smooth adjustability, and long-lasting durability even in rough water.

The 11" x 3" universal electronics base features a wide selection of pre-drilled holes that align with many popular Garmin, Lowrance, and Humminbird devices. The included shoulder washers help accommodate smaller mounting hardware, making installation clean and secure.* A 3.68" round base with a matching 2.25" ball completes the assembly, giving you reliable mounting versatility from deck to dash.

Crafted from powder-coated marine-grade aluminum, this mount is engineered to handle heavy electronics—up to 6 lbs.—while maintaining a low-profile footprint and rock-solid hold in any conditions.

*  Additional Information: The 11" x 3" rectangle base is a universal mounting bracket with a selection of mounting hole locations. In certain applications additional holes may need to be drilled for proper fit with your electronic device.

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Key Features

• 2.25" D-size ball system for maximum holding strength on heavy marine display units

• Short double socket arm for a compact, ultra-stable installation (5.1" overall length)

• Universal 11" x 3" base with multiple pre-drilled hole patterns for fishfinders and chartplotters

• 3.68" round base with AMPS hole pattern for countless mounting setups

• Fully adjustable viewing angle for glare-free operation and easy repositioning

• Marine-grade aluminum construction with long-lasting corrosion resistance

• Supports devices up to 6 lbs. without drifting or vibration

• Made in the USA and backed by a manufacturer’s lifetime warranty

• Overall height when extended: 8.125"

• Weight: 3.58 lbs.

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Compatible Marine Electronics (Partial List)

Garmin

• ECHOMAP Ultra 122sv / 126sv

• GPSMAP 1222/xsv Touch

• GPSMAP 1242xsv/Touch

Lowrance

• HDS Carbon 9 & 12

• Elite-9 CHIRP / Elite-9 Ti / Elite-9 Ti²

• Elite-12 Ti / Elite-12 Ti²

Humminbird

• 800 Series & 900 Series

Also fits many other high-power fishfinders, GPS systems, and large marine displays.

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Manufacturer Info

• Brand: RAM Mounts

• Part Number: RAM-D-111U-C

• Warranty: Lifetime manufacturer warranty