
RAM Mounts RAM-B-189BU Twist-Lock Dual Suction Cup Base
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Heavy-duty dual suction cup mounting base with universal AMPS hole pattern — ideal for attaching RAM arms, balls and device holders to smooth, non-porous surfaces like windscreens and windows. Provides a strong secure anchor point for vehicle, 4WD and field mounting setups.
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Why Choose the RAM Mounts RAM-B-189BU Twist-Lock Dual Suction Cup Base?
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Dual 3.3″ twist-lock suction cups deliver strong grip on glass and other smooth surfaces.
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Universal AMPS 4-hole pattern plate accepts a wide range of RAM balls, arms and devices.
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Durable powder-coated steel and high-strength composite construction for rugged service.
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Backed by RAM Mounts lifetime warranty for long-term confidence.
Specifications
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Suction cups: (2) 3.3″ diameter, total width ~7.95″.
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Hole pattern: Universal AMPS 4-hole (1.181″ × 1.496″).
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Materials: Powder-coated steel and high-strength composite.
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Weight: ~0.69 lb (~0.31 kg).
What’s Included
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Dual suction cup base with universal AMPS mounting plate
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Assembly hardware for RAM components
Ideal For
Perfect for building robust in-vehicle mounting systems — pair with RAM arms and tablet/phone cradles to secure devices for mapping, thermal viewing, navigation and data collection during pest control, fieldwork, driving and off-road use.


