Description
The RAM-B-166-GA76U is a complete windshield mount for Garmin handheld GPS devices with a spine connector. The kit includes a 3.3″ Twist-Lock suction cup, a B-size medium-length double ball joint arm, and the RAM Spine Clip Holder for Garmin. The Spine Clip snaps into place in a single motion in the spine slot on the back of the GPS device—no tools, no additional brackets.
RAM Spine Clip Holder: Specifically for Garmin
The Spine Clip Holder clicked right into the integrated spine connector that Garmin uses on many of its handheld devices. This is the standard mounting interface on most current and recent Garmin GPS models. The connection is stable, vibration-resistant, and allows for quick device swapping without tools.
Compatible Garmin Models
Compatible with all Garmin handheld devices with a spine connector, including: eTrex 10/20/20x/30/30x, eTrex Touch 25/35/35t, GPSMAP 62/64/66/86 series, inReach Explorer+, inReach Mini, inReach SE, Oregon 200 through 750 series, Rino 610/650/655t/700/750/755t, Montana 700 series, Alpha 100, Astro 320/430/900, Dakota 10/20, and Sport PRO. Always check the compatibility list at rammount.com for your specific model.
Twist-Lock suction cup and ball arm
The 3.3″ (8.38 cm) Twist-Lock suction cup adheres securely to the windshield or other non-porous surfaces. It locks into place with a twist and unlocks the same way. The B-size double ball arm has adjustment points at both ends for virtually unlimited viewing angle adjustability. The ball-and-socket system absorbs shocks and vibrations. Weight capacity: 0.9 kg under normal use, 0.45 kg under heavy use.
Do you want to permanently mount the device in one place without a suction cup? Then check out the RAM Drill-Down Mount for Garmin —it’s the same mount, but with a screw-on base plate instead of a suction cup.
Material: marine-grade aluminum and high-strength composite. RAM Mounts offers a lifetime warranty on this product.
Technical Specifications
- Suction cup diameter: 3.3″ (8.38 cm)
- Arm socket-to-socket distance: 3″ (7.62 cm)
- Bullet size: B-size 1″ rubber bullet
- Weight capacity: 0.9 kg (standard) / 0.45 kg (heavy-duty)
- Surface: glass and non-porous plastic surfaces
Package Contents
- RAM Twist-Lock Suction Cup Base (3.3″)
- B-size medium-length double ball arm
- RAM Spine Clip Holder for Garmin (RAM-HOL-GA76U)
- Diamond Ball Base
- Mounting Hardware







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