Patented

RAM® Twist-Lock™ Triple Suction Cup Mount with Diamond Plate

Part#: RAP-365-138U
UPC: 793442029554

Compatibility

Kit Components

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$110.49

Overview

The RAM® Twist-Lock™ Triple Suction Cup Mount with Diamond Plate (RAP-365-138U) is a convenient way to mount any device to a flat, non-porous surface, like glass. This heavy-duty mounting solution features three powerful suction cups with twist-lock latches for secure, vibration-resistant attachment—ideal for windshields, windows, and other smooth surfaces. Easily connect any RAM® device holder, cradle, or dock, or directly mount your device using the standard 2-hole AMPS pattern for a customizable and reliable setup.

Features

  • RAM® Twist-Lock™ triple suction cup base is ideal for vehicle windshields and other nonporous surfaces
  • Ideal mounting base for phones, tablets, cameras, and much more; diamond base features 2-hole AMPS pattern compatible with RAM® holders and docks
  • Bundle features C size components; Twist-Lock™ triple suction cup base, medium length arm, and diamond base
  • Made of high-strength composite and powder-coated, marine-grade aluminum for durability and reliability in the most demanding environments
  • Backed by a lifetime warranty

hardware included:

Assembly Hardware

suction size:

(3) 3.3" Diameter Bases, Total Width 7.95"

socket to socket length:

4.66"

hole pattern:

2-Hole AMPS: 1.912"

ball size:

C Size (1.5")

weight capacity:

Standard Use: 4 lbs
Heavy-Duty Use: 3 lbs

materials:

Marine-grade aluminum
High strength composite

packaging type:

Poly Bag

Weight:

1.81 lb

Additional Information:

*The rubber material used in suction cups is considered a general wear item and is not covered under the lifetime warranty. Learn more about the RAM® warranty policy here.

Return Policy:

All products purchased from RAM® can be returned within 30 days with no restocking fee (return shipping not provided). See full return policy here.

QUESTIONS & ANSWERS

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RAM® Twist-Lock™ Triple Suction Cup Mount with Diamond Plate
$110.49

Size Guide

Ball sizes
  • A Size 0.56" ball
  • B Size 1" ball
  • C Size — this product 1.5" ball
  • D Size 2.25" ball
  • E Size 3.38" ball

Every RAM® mount is built around a rubber ball and socket system. The ball size sets how much weight the mount can carry. Match it to your device for smooth adjustment with a rock-solid hold.

RAM Mounts ball size specifications and typical uses
Size Ball Diameter Max Load* Best For
A0.56" (14.3 mm)0.5 lbAction cameras and other ultra-light devices
B1" (25.4 mm)2 lbsPhones, GPS units, and small tablets — the most common size
C — this product1.5" (38.1 mm)4 lbsLarge tablets, fish finders, and rougher rides
D2.25" (57.2 mm)6 lbsRugged tablets, laptops, and heavy equipment
E3.38" (85.9 mm)15 lbsLarge displays and demanding aviation or industrial use

*Approximate capacity for a standard ball with a mid-length arm. Shorter arms and steel-reinforced posts increase real-world capacity.

Reading part numbers

The letter after RAM tells you the ball size: RAM-B-166 uses a 1" B ball, while RAM-D-201 uses a 2.25" D ball. C size parts are the exception and carry no letter, so RAM-201U is a C size arm.

Add-on & Accessories

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