RAM® Twist-Lock™ Suction Cup Mount for Garmin echo™ 100, 150 & 300c
Part#:RAM-B-166-G4 UPC:793442917004 Patented
The RAM-B-166-G4 consists of a 3.3" suction cup twist lock base, double socket arm, 2" x 1.7" plate and custom hardware for the Garmin GPSMAP. The mount is designed with a RAM 1" diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for almost infinite adjustment and perfect viewing angles. Simply attach the suction cup base to the windshield of your vehicle for an easy and safe way to view your handheld device in your vehicle. The included hardware allows your device to attach directly to the mount.

hardware included

Assembly Hardware
(3) #8-32 x 5/8" Machine Screws
(3) #8-32 Nylock Nuts

product dimensions

Overall Height: 6.69"

suction size

3.3" Diameter

socket to socket length


hole pattern

4-Hole AMPS: 1.181" x 1.496"
3-Hole 120-Degree: 1.812" Diameter

ball size

B Size (1")

weight capacity

Standard Use: 2 lbs
Heavy-Duty Use: 1 lb


Marine-grade aluminum
High strength composite

packaging type

Retail Bag


0.72 lb