When you’re running large marine electronics in rough water, you need a mount that won’t creep, chatter, or slip. This RAM® D-Size drill-down system uses a massive 2.25" rubber ball and a short double socket arm to deliver maximum holding power with tight, precise adjustability. The included Hi-Torq™ wrench lets you apply extra clamping force for a secure, no-nonsense lock—ideal for high-speed runs, pounding chop, and heavy displays.
This kit includes both a 3.68" round base and an 11" x 3" rectangular plate with multiple hole patterns for flexible installs on helms, consoles, and mounting panels. It’s a proven choice for select 8"–16" fishfinders, chartplotters, and GPS units where stability matters most.
Features
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Heavy-duty D-Size 2.25" RAM® ball for superior holding strength
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Short double socket arm for compact, ultra-stable positioning
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Includes RAM Hi-Torq™ wrench for higher clamp torque and reduced slippage
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Shock and vibration resistance for open-water performance
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Dual base plates for broader mounting compatibility
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Marine-grade, powder-coated aluminum for corrosion resistance
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Made in the USA
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Backed by RAM® Lifetime Warranty
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Gadget Mounts is an Authorized RAM Mounts Dealer
Specifications
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Ball Size: D Size (2.25")
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Overall Length (fully straight): 8.125"
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Socket-to-Socket Length: 3.6"
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Arm Type: Short double socket arm
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Top Plate Size: 11" x 3"
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Bottom Plate Size: 3.68" diameter
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Weight Capacity: Standard Use 6 lbs; Heavy-Duty Use 5 lbs
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Materials: Marine-grade aluminum (powder-coated)
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Product Weight: 4.55 lbs
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Hole Pattern: See drawings (universal multi-hole plate)
Included Hardware
Note: Drill-down mounting fasteners are not included because hardware depends on your mounting surface and application.
In some installs, drilling additional holes may be required in the top plate for an exact fit to your electronics.
Brand and Warranty
