10 bestTrailer Coupler Locksof December 2025
112M consumers helped this year.
1
AMPLOCK Standard Series (2'' Trailer Coupler Lock)
AMPLock
9.9
2
Master Lock Trailer Lock, Trailer Coupler Lock, Fits 2-5/16 inch Couplers, 378DAT
Master Lock
9.8
3
Master Lock 379ATPY Universal Trailer Coupler Lock
Master Lock
9.5
4
Proven Industries Model 2178 Trailer Lock, Fits Specific 2-Inch Trailer Couplers, Secures Safety Chains, Made in The USA, (Black)
Proven Industries
9.3
5
Proven Industries Model 2516 Trailer Lock, Fits 2 5/16-Inch Couplers, Secures Safety Chains, Made in The USA, (Blue)
Proven Industries
9.1
Other
Rhino USA Trailer Hitch Coupler Lock Kit (Includes 2" & 1/4" Couplers) Heavy Duty Anti-Theft Tongue Locks for Boat, RV, Travel Trailers & More - Reinforced Solid Steel for Ultimate Peace of Mind!
Trimax TCP50 Trailer Lock Combo Pack (Keyed Alike)
Reese Towpower 72783 Universal Coupler Lock
Proven Industries Model 2516-B Trailer Lock, Fits 2 5/16-Inch Bulldog or Ram Trailer Couplers, Made in The USA, (Black)
6
Master Lock - Universal Size Fits 1-7/8", 2", and 2-5/16" Couplers - Trailer Locks #389DAT
Master Lock
8.8
11% off
7
RETRUE Universal Coupler Lock Heavy-Duty Trailer Coupler Locks Ball Hitch Tow Hitch Lock for 1-7/8 Inch, 2 Inch, 2-5/16 Inch Couplers, Grey
RETRUE
8.5
8
Trimax UMAX100 Premium Universal 'Solid Hardened Steel' Trailer Lock (fits all couplers)
Trimax
8.3
9
Trimax TCP100 Keyed Alike Combo Pack
Trimax
8.0
5% off
10
PEAKTOW PTS0002 Heavy Duty Universal Adjustable Coupler Lock Trailer Hitch Storage Security Lock Fits 1-7/8, 2, 2-5/16 Inches Couplers
PEAKTOW
7.7
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