RAM Mounts RAM-B-347U 2″ x 1.7″ Base with 1″ Ball

Compact AMPS adapter plate with a 1″ (B-Size) RAM ball — perfect for adding a ball base to flat mounting points. This component lets you build custom RAM mounting solutions by pairing with RAM arms, cradles and other accessories. Ideal for dashboards, brackets and flat surfaces where a pivot point is needed.

Browse our full range of RAM Mounts vehicle mounting systems →

Why Choose the RAM Mounts RAM-B-347U 2″ x 1.7″ Base with 1″ Ball?

• Solid AMPS 4-hole plate with pre-drilled pattern for universal compatibility.

• Built-in 1″ B-Size rubber ball for direct connection to RAM B-Size arms and accessories.

• Powder-coated marine-grade aluminium — durable and corrosion-resistant.

• Adds modularity to custom RAM mounting setups — plate only, arms/cradles sold separately.

• Backed by the RAM Mounts lifetime warranty.

Specifications

• Ball size: B-Size (1″ diameter).

• Plate dimensions: ~2″ × 1.7″ square base.

• Hole pattern: Universal AMPS 4-hole (1.181″ × 1.496″).

• Material: Powder-coated marine-grade aluminium.

• Weight: ~0.13 lb (0.06 kg).

What’s Included

• 1 × AMPS adapter plate with integrated 1″ B-Size ball
  (Mounting arms, cradles and accessories sold separately)

Ideal For

Perfect for building versatile RAM mounting systems — mount arms and holders for tablets, phones, GPS units, cameras or sensors to flat surfaces in vehicles, boats, UTVs and field setups. Use as a starting point for custom mounting configurations.