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Master Lock Trailer Coupler Lock, Universal Size Fits 1-7/8", 2", and 2-5/16", 389DAT
The Master Lock No. 389DAT features a universal trailer coupler lock, designed to fit most 1-7/8in (48mm), 2in (51mm) and, 2-5/16in (59mm) couplers. The advanced locking mechanism provides resistance to picking and prying. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.
Price and availability captured 2026-08-21 and subject to change. The price shown on Amazon at the time of purchase applies.
0% above the 1-year average. Record low $29.99.
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Specifications, review intelligence and safety
- • Coupler Lock,Universal
- • Bright red finish discourages thief's from messing with your trailer
- • Advanced locking mechanism resists picking and prying
- • Resists rust and corrosion; Simple installation and removal
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