

RAM Mounts X-Grip Phone Mount with Twist-Lock Suction Cup (RAM-B-166-UN7U) is a complete windshield mount for phones: a Ø 84 mm Twist-Lock suction cup base, a medium B-size double socket arm and the spring-loaded X-Grip holder, which fits devices 47.6–82.6 mm wide and up to 22.2 mm deep. Four rubber-capped legs grip the device securely while leaving the screen and controls free. Ideal for vans, trucks, cars and boats – and easily moved between vehicles.
📦 What's in the box – RAM-B-166-UN7U
- X-Grip holder with ball – for devices 47.6–82.6 mm (1.875"–3.25") wide, max. 22.2 mm deep (RAM-HOL-UN7BU)
- Double socket arm – B-size, medium, 95 mm overall, 76 mm socket to socket (RAM-B-201U)
- Twist-Lock suction cup base with ball – Ø 84 mm suction cup, B-size ball (RAM-B-224-1U)
- Assembly hardware – for assembling the components
- Optional device tether – extra security for rugged use
- Glue tube – for the rubber caps
💡 You might also consider spare X-Grip rubber caps and a second base such as the Tough-Claw clamp base for another vehicle or location.
Key Features
- X-Grip spring-loaded design – four rubber-capped legs expand and contract for a custom fit and leave the device almost uncovered
- Twist-Lock suction cup – Ø 84 mm (3.3") cup locks with a twist of the lever onto windshields, glass and other smooth, non-porous surfaces
- Adjustable at both ends – medium arm, 95 mm overall; one knob locks both ball joints
- Works with cases – check the device dimensions with its case, sleeve or skin before ordering
- Lifetime warranty – the suction cup rubber is a wear part and is not covered
Compatibility
- Smartphones 47.6–82.6 mm (1.875"–3.25") wide, up to 22.2 mm deep incl. case
- Windshields, glass and smooth non-porous plastic, incl. RAM adhesive discs
Technical Specifications
| Part Number | RAM-B-166-UN7U |
|---|---|
| Product Type | Complete mount with X-Grip holder, B-size |
| Connection | B-size (1" / 25.4 mm) ball; Twist-Lock suction cup Ø 84 mm |
| Arm Length | 95 mm (3.73") overall; 76 mm (3") socket to socket |
| Load Capacity | 2 lb (0.9 kg) standard use; 1 lb (0.45 kg) heavy-duty use |
| Dimensions | Holder width 47.6–82.6 mm (1.875"–3.25"); depth max. 22.2 mm (0.875") |
| Material | Powder-coated marine-grade aluminium, stainless steel and high-strength composite |
| Weight | 0.35 kg (0.77 lb) |
| Warranty | Lifetime warranty (RAM Mounts); the suction cup rubber is a wear part and is excluded |
| In the Box | X-Grip holder with ball, double socket arm, Twist-Lock suction cup base with ball, assembly hardware, optional device tether, glue tube |
You will find matching cradles, holders and more RAM mounting parts in our Mobile Terminal Accessories collection. Planning a vehicle or forklift installation, or ordering for a whole fleet? Contact us for project support and volume pricing.
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