RAM Universal Spring Loaded Holder for Large Phones with suction cup base

RAM-B-166-UN5U RAM® Twist-Lock™ Suction Cup Mount with Spring-Loaded Phone Holder

The RAM-B-166-UN5U is a complete windshield or dash mounting kit for large smartphones, combining RAM's 83mm Twist-Lock™ suction cup base, a double socket arm, and a universal spring-loaded phone holder. It's built for low-vibration use in cars, trucks, and fleet vehicles, and fits phones from 44.45mm to 88.9mm (1.75"–3.5") wide.

Key Features

• Universal spring-loaded clamping cradle adjusts to the width of most large smartphones
• Pivoting, sliding base feet open wider to accept larger devices
• One-touch release button for quick, one-handed device removal
• 2-hole AMPS pattern on the cradle attaches to any RAM B or C Series diamond plate
• 83mm (3.3") Twist-Lock™ suction base grips glass and non-porous plastic surfaces, including RAM adhesive disks
• RAM ball-and-socket system gives near-infinite adjustment at both ends of the double socket arm
• High-strength composite construction

Works With

Designed for low-vibration environments — cars, trucks, and fleet vehicles. Not recommended for motorcycles, off-road, or marine use where higher vibration is present.

Compatible Devices

Fits phones with a width of 44.45mm to 88.9mm (1.75"–3.5"), which covers most large smartphones, including (as a reference point) the Apple iPhone 12, Samsung Galaxy S20/S20+/S21/Note 20, OnePlus 9/9 Pro, Xiaomi Mi 11/Mi Note 10, and Oppo Find X3 Pro. Always check your phone's width — with case, if used — against the range above before ordering.

Dimensions & Specifications

• Holder width range: 44.45mm–88.9mm (1.75"–3.5")
• Suction base diameter: 83mm (3.3")
• Socket-to-socket arm length: 76mm (3")
• Overall height: 93.7mm (6.69")
• Ball size: 1" (B Size), rubber
• Weight: 376g (0.83 lbs)
• Weight capacity: 907g (2 lbs)
• Material: marine-grade aluminium, high-strength composite

What's Included

• RAM-HOL-UN5U — universal large phone holder
• RAM-B-224-1U — 83mm diameter suction cup base with 1" ball
• RAM-B-201U — double socket arm for 1" ball
• RAM-B-238U — 62mm x 33mm diamond base with 1" ball
• Assembly hardware

FAQs

Will this work on my dashboard? The suction base is designed for glass and non-porous plastic. For textured dashboards, a RAM adhesive disk can provide a suitable surface.

Is this suitable for motorcycles or off-road use? No — this cradle is designed for low-vibration environments such as cars, trucks, and fleet vehicles.

If this item shows as being in stock then it will usually ship from our Auckland warehouse in 1 business day. If it says to enquire then please get in touch as we may be able to get this back in for you.

Videos

See it in action: RAM-B-166-UN5U overview