World-Class Mounting Systems

Size Guide

Ball Sizes
Arm Sizes
X
The unique double ball and socket design allows you to adjust your mount to the perfect viewing or operating angle, all with the turn of a single knob. This modular design can be configured with a variety of interchangeable components to fit your specific mounting needs.
B Size
Holds 2 lbs / 0.91 KG
1" Ball
Phones, Action Cameras, Light Duty Tablets
C Size
Holds 4 lbs / 1.81 KG
1.5" Ball
Fishfinders, Heavy Duty Tablets
D Size
Holds 6 lbs / 2.72 KG
2.25" Ball
Monitors, Large Fishfinders
E Size
Holds 15 lbs / 6.8 KG
3.38" Ball
Heavy Monitors
Ball Sizes Short Arm Medium Arm Long Arm
B Size Overall Length 2.42" / 6.1468cm 3.73" / 9.47cm 6.00" / 15.24cm
Socket-to-Socket Length 1.75" / 4.45cm 3.00" / 7.62cm 5.31" / 13.49cm
C Size Overall Length 3.56" / 9.04cm 5.69" / 14.45cm 9.13" / 23.19cm
Socket-to-Socket Length 2.50" / 6.35cm 4.66" / 11.84cm 8.00" / 20.32cm
D Size Overall Length 5.10" / 12.95cm 8.44" / 21.44 12.98" / 32.97
Socket-to-Socket Length 3.60" / 9.14cm 6.88" / 17.48cm 11.41" / 28.98cm
E Size Overall Length 7.31" / 18.57cm 12.63" / 32.08cm N/A
Socket-to-Socket Length 4.98" / 12.65cm 9.88" / 25.10cm N/A

RAM® Drill-Down Double Ball Mount with Hardware for Garmin GPSMAP Series

SKU Copied
SKU: RAM-B-139-G4U
UPC Copied
UPC: 793442916991
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01 29 230025ram B 139 G4u2jpg

RAM® Drill-Down Double Ball Mount with Hardware for Garmin GPSMAP Series
Copy SKU
SKU: RAM-B-139-G4U
Copy UPC
| UPC: 793442916991

Overview
Simply choose your preferred mounting location and the possibilities become endless with the Garmin GPSMAP Flat Surface Mount. Rubber ball and socket technology allows for almost infinite adjustment and perfect viewing angles. High quality materials insure your Garmin GPSMAP is safe, secure, and within easy reach. RAM’s patented design also dampens shock and vibration helping to extend the life of your mobile device.

Information

Compatible Devices

Information

Hardware Included

(3) #8-32 x 12,70 cm (5")/20,32 cm (8") Machine Screws
(3) #8-32 Nylock Nuts

Product Dimensions

Overall Height: 12.70cm (5")

Socket To Socket Length

7.62cm (3")

Hole Pattern

Round Plate: 4-Hole AMPS: 3.00 cm (1.181") X 3.80 cm (1.496") & 3-Hole 120-Degree: 4.60cm (1.812") Diameter
Rectangular Plate: 4-Hole AMPS: 3.00 cm (1.181") X 3.80 cm (1.496")

Plate Size

6.35cm (2.5") Diameter

Ball Size

B Size (1")

Weight Capacity

Standard Use: 0.91 kg (2 lbs)
Heavy-Duty Use: 0.45 kg (1 lbs)

Materials

Marine-grade aluminum

Packaging Type

Poly Bag

Weight

0.26 kg (0.58 lbs)

Compatible Devices

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Components

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RAM Mounts
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RAM-B-201U
RAM® Double Socket Arm - B Size Medium
01 29 230203ram B 202u1jpg
RAM Mounts
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RAM-B-202U
RAM® Round Plate with Ball - B Size
01 29 230231ram B 347 G4u1jpg
RAM Mounts
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RAM-B-347-G4U
RAM® Ball Adapter with AMPS Plate for Garmin GPSMAP 620 & 640


Complete Your Solution

Locking Knobs for B Size Socket Arms

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RAM Mounts
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RAM-KNOB3LSU
RAM® Key Lock Knob with Steel Insert for B Size Socket Arms
01 29 232210rap S Knob3 7u1jpg
RAM Mounts
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RAP-S-KNOB3-7U
RAM® Pin-Lock Security Knob with 7-Pin Pattern for B Size Socket Arms
07 19 230753rap S Knob3u1jpg
RAM Mounts
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RAP-S-KNOB3U
RAM® Pin-Lock Security Knob for B Size Socket Arms

Accessories for AMPS Pattern Base Components

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RAM Mounts
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RAM-202-225B-2U
RAM® Backing Plate Adapter
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RAM Mounts
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RAM-HOL-ROTO1U
RAM® Roto-View Adapter Plate
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RAM Mounts
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RAP-400-202U
RAM® Trolling Motor Stabilizer - Tough-Claw .625" - 1.14" Medium Arm

RAM® Add-A-Ball Accessory Ball for B Size Socket Arms

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RAM Mounts
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RAM-B-273U
RAM® Add-A-Ball Accessory Ball for B Size Socket Arms
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