RAM Mount RAM-B-347-G4U Base
Best mounting solution for Garmin GPS users needing secure, versatile installation.
Securely mount your compatible GPS device with the RAM Mount RAM-B-347-G4U base. Crafted from durable, powder-coated marine-grade aluminum, this base features a 1-inch rubber ball connected at a right angle to a 2" x 1.7" square plate. It includes four pre-drilled holes for the universal AMPS hole pattern, ensuring versatile installation. Weighing just 2.40 oz, this base is designed for reliable, long-term use with various Garmin GPS units, offering a robust solution for your navigation needs.
$18.18
Owner Satisfaction
4.7
/ 5
Category Rank
43
/ 351
#43 in GPS Mounts
Price vs Category Average
-63%
Below average
Material
Powder Coated Marine-grade Aluminum
/ Powder Coated Marine-grade Aluminum
Who it's for
- Modular system users expanding their existing RAM setup
- Device owners needing standard industry mounting compatibility
- Off-roaders requiring stable, vibration-resistant equipment mounts
Who should skip it
- Renters or vehicle owners avoiding permanent surface modifications
- Professionals mounting heavy tablets or ruggedized laptops
- Shoppers wanting an all-in-one kit with included hardware
Performance breakdown
Build durability
Marine-grade aluminum construction handles harsh environments and heavy vibrations with ease.
Installation versatility
Universal AMPS hole pattern ensures compatibility with a vast range of surfaces.
Vibration dampening
The signature rubber ball design effectively absorbs shocks for steady navigation.
Mounting footprint
Compact dimensions allow for secure placement in tight, space-constrained cockpits.
System compatibility
Seamlessly integrates into the extensive RAM modular ecosystem for custom setups.
Weight efficiency
Lightweight design provides industrial-strength support without adding unnecessary bulk.
Key Specs
Material
Powder Coated Marine-grade Aluminum
Ball Size
1.0 inch diameter
Base Dimensions
2" x 1.7"
Hole Pattern
Universal AMPS (1.5 x 1.188 hole spacing)
Weight (Approximate)
2.40 oz
Device Supported
GPS
Compatible Brands
Garmin
Warranty
Lifetime Limited Warranty
Features
- Connects 1" ball to a square mounting plate.
- Durable marine-grade aluminum construction.
- Features universal AMPS hole pattern.
- Designed for secure, right-angle mounting.
- Compatible with various Garmin GPS devices.
- Pre-drilled holes for straightforward installation.
- Robust design ensures long-term reliability.
What customers say
Customers highly value the RAM Mount base for its robust, marine-grade aluminum construction, ensuring excellent longevity in harsh conditions. The core positive theme centers on its precision engineering and perfect fit, especially for Garmin GPS units using the specific hole pattern. This seamless alignment provides users with confidence that their electronics remain secure despite vibration or impact. While RAM products represent a premium investment, reviewers consistently find the reliability and modularity justify the cost. The base is celebrated as a dependable, purpose-built adapter that upholds the brand's reputation for quality and secure mounting solutions.
Know before you buy
This base features the universal AMPS hole pattern, which is standard for many Garmin GPS cradles. As long as your device holder or cradle uses this 1.5" x 1.188" hole spacing, it will be compatible.
No, this package includes only the mounting base. You will need to use the screws provided with your specific GPS cradle or device holder to attach it to the plate.
Yes, the powder-coated marine-grade aluminum is specifically designed to resist corrosion and wear in harsh outdoor environments, making it an excellent choice for marine or powersports applications.
Absolutely. The 1-inch rubber ball is compatible with any standard RAM Mount B-size socket arm, allowing you to build a custom mounting system tailored to your vehicle or cockpit.
The right-angle configuration allows you to mount your GPS on flat vertical or horizontal surfaces while keeping the device oriented toward you, providing better visibility and easier access to the screen.
Still have a question?
Ask Hayley anything about this product before you decide.