The RAM® B Size Ball Adapter with Composite AMPS Plate (RAP-B-347U) is a compact and versatile mounting base designed to connect devices with the industry-standard 4-hole AMPS pattern to the RAM® 1" ball mounting system. Featuring a durable high-strength composite plate and a rubber-coated 1" B-size ball, this adapter allows secure integration with RAM double socket arms for highly adjustable device positioning.
The 2" x 1.7" square plate includes four pre-drilled holes in the universal AMPS hole pattern (1.181" x 1.496"), making it compatible with a wide range of GPS units, motorcycle navigation devices, radios, and other electronics that use the AMPS mounting standard. Because of its compact footprint, the RAP-B-347U is also commonly used as a small drill-down base when mounting space is limited.
When paired with a compatible RAM® socket arm and mounting base, this adapter becomes part of a modular mounting solution ideal for motorcycles, vehicles, boats, industrial equipment, and workstations.
As an Authorized RAM Mounts Dealer, Gadget Mounts provides genuine RAM® components backed by the manufacturer’s lifetime warranty.
Key Features
• Universal AMPS compatibility – fits many GPS units and electronics using the 4-hole AMPS pattern
• Compact 2" x 1.7" footprint ideal for tight mounting spaces
• Integrated 1" RAM® B-size ball for compatibility with RAM double socket arms
• High-strength composite construction for lightweight durability
• Can also serve as a compact drill-down mounting base
• Rubber ball design reduces vibration and helps protect mounted devices
• Part of the modular RAM® ball and socket mounting system
Common Applications
• Motorcycle GPS mounts (Garmin, TomTom and other navigation units with AMPS hole pattern)
• Vehicle dashboards and consoles
• Boat and marine electronics mounting
• Fleet vehicle device mounting
• Industrial equipment and work truck installations
• Compact drill-down mounting solutions
Specifications
Ball Size: B Size (1")
Hole Pattern: 4-Hole AMPS (1.181" x 1.496")
Plate Size: 2" x 1.7"
Hole Diameter: 3/16"
Plate Thickness: 1/4"
Weight Capacity:
• Standard Use: 2 lbs
• Heavy-Duty Use: 1 lb
Materials: High-strength composite
Product Weight: 0.08 lbs
Mount Type: Drill-down / AMPS compatible plate
Brand and Warranty
Brand: RAM Mounts
Part Number: RAP-B-347U
Warranty: Manufacturer's Lifetime Warranty
