RAM Mounts RAM-D-111 Large Marine Electronics Mount D Size 2.25" Ball

The RAM Mounts RAM-D-111 is a complete, drill-down mounting solution designed for large marine electronics such as fish finders, chartplotters, and other devices. The kit includes a 3.68" diameter round base, a D size double socket arm, and an 11" x 3" rectangular adapter plate, all constructed from powder-coated, marine-grade aluminum for durability in demanding on-water environments.

Both the round base and rectangular plate feature 2.25" D size rubber balls compatible with RAM's D size socket arms. The round base contains multiple pre-drilled hole patterns — including two holes at 180° and three holes at 120° — for versatile surface mounting. The rectangular adapter plate offers a variety of pre-drilled hole combinations to mate with many popular marine electronic devices and gimbal brackets.

Key Features:

• Includes 3.68" diameter round base, D size double socket arm, and 11" x 3" rectangular adapter plate
• 2.25" D size rubber ball on both the round base and rectangular plate
• Round base pre-drilled with holes at 180° and 120° patterns
• Rectangular plate compatible with Marine GPS, CB Radios, Ham Radios, and Gimbal Brackets
• Universal AMPS hole pattern support on the round base
• Near-infinite adjustability via RAM's double ball and socket design — adjustable with a single knob
• Powder-coated, marine-grade aluminum construction
• Modular design compatible with a wide range of interchangeable RAM Mounts components
• Backed by RAM Mounts lifetime warranty

The 11" x 3" rectangular plate serves as a universal mounting bracket with multiple hole location options. In certain applications, additional holes may need to be drilled for a proper fit with specific devices. Four shoulder washers are included to allow smaller hardware to fit properly in the larger plate holes.