Shop Most Secure Coupler Lock

Sponsored
About our ads
$19.00
Steel Lockout Hasp - 1 1/2" - Master Lock - Pack Of 2
Uline
$19.00
Steel Lockout Hasp - 1 1/2" - Master Lock - Pack Of 2
Uline
$126.00
Master Lock Lockout Padlock - Set Of 6 Keyed Alike, 1 1/2" Shackle, Red - Master Lock - Pack Of 6
Uline
$126.00
Master Lock Lockout Padlock - Set Of 6 Keyed Alike, 1 1/2" Shackle, Red - Master Lock - Pack Of 6
Uline
$44.00
Aluminum Lockout Padlock - Keyed Different, Yellow - Master Lock - Qty Of 2
Uline
$44.00
Aluminum Lockout Padlock - Keyed Different, Yellow - Master Lock - Qty Of 2
Uline
$80.99
VEVOR Trailer Coupler Lock Fits 2-5/16-Inch Cast/Bulldog Trailer Couplers Heavy Duty Trailer Hitch Lock With 3 Keys Corrision-Resistant Anti-Theft
VEVOR
$80.99
VEVOR Trailer Coupler Lock Fits 2-5/16-Inch Cast/Bulldog Trailer Couplers Heavy Duty Trailer Hitch Lock With 3 Keys Corrision-Resistant Anti-Theft
VEVOR
$66.95
Master Lock Trailer Coupler Lock, 2-5/16" - 378DAT
Global Industrial
3K+
$66.95
Master Lock Trailer Coupler Lock, 2-5/16" - 378DAT
Global Industrial
$89.99
2026 Upgraded Trailer Lock Fits 2-5/16 Inch Coupler, Heavy Duty Trailer Hitch Locks, Anti-Theft Trailer Coupler Lock For RV, Trailer, Boat, Pickup(Red
Amazon.com
65
Free shipping
$89.99
2026 Upgraded Trailer Lock Fits 2-5/16 Inch Coupler, Heavy Duty Trailer Hitch Locks, Anti-Theft Trailer Coupler Lock For RV, Trailer, Boat, Pickup(Red
Amazon.com
$187.80
Master Lock Universal Trailer Coupler Lock, Fits Most 1-7/8", 2" And 2-5/16" Couplers - 389DAT - Pkg Qty 4
Global Industrial
16K+
$187.80
Master Lock Universal Trailer Coupler Lock, Fits Most 1-7/8", 2" And 2-5/16" Couplers - 389DAT - Pkg Qty 4
Global Industrial
$19.99
TOPICK Trailer Coupler Lock, Universal Coupler Ball Lock, Trailer Security Hitch Locks, Fits 1-7/8", 2", And 2-5/16" Couplers, Matte Black With PVC
Amazon.com
2
$19.99
TOPICK Trailer Coupler Lock, Universal Coupler Ball Lock, Trailer Security Hitch Locks, Fits 1-7/8", 2", And 2-5/16" Couplers, Matte Black With PVC
Amazon.com
$55.90
VEVOR Collar Coupler Lock Fits 2 & 2-5/16-Inch Demco Cast Head Couplers Trailer Hitch Lock With 3 Keys Secures Security Chains Rust-Resistant
VEVOR
2
$55.90
VEVOR Collar Coupler Lock Fits 2 & 2-5/16-Inch Demco Cast Head Couplers Trailer Hitch Lock With 3 Keys Secures Security Chains Rust-Resistant
VEVOR
$69.90
VEVOR Trailer Lock Fits 2-5/16-Inch Airstream Couplers Heavy Duty Hitch Lock With 3 Keys Secures Security Chains Rust-Resistant Anti-Theft Trailer
VEVOR
$69.90
VEVOR Trailer Lock Fits 2-5/16-Inch Airstream Couplers Heavy Duty Hitch Lock With 3 Keys Secures Security Chains Rust-Resistant Anti-Theft Trailer
VEVOR
$37.95
Master Lock Universal Coupler Lock, Rekeyable Cylinder, Fits 1-7/8", 2" & 2-5/16", 379ATPY
Global Industrial
4K+
$37.95
Master Lock Universal Coupler Lock, Rekeyable Cylinder, Fits 1-7/8", 2" & 2-5/16", 379ATPY
Global Industrial
$60.66
TM3123 KEYED RECEIVER & ADJUSTABLE COUPLER LOCK, Keyed Alike - All Locks Open With Same Key
1st-in-Padlocks
55
$60.66
TM3123 KEYED RECEIVER & ADJUSTABLE COUPLER LOCK, Keyed Alike - All Locks Open With Same Key
1st-in-Padlocks
$37.99
Ultra-Tow Universal Coupler Lock, Fits 1-7/8In., 2in. And 2-5/16in. Couplers
Northern Tool
$37.99
Ultra-Tow Universal Coupler Lock, Fits 1-7/8In., 2in. And 2-5/16in. Couplers
Northern Tool
$30.99
Reese Universal Coupler Lock, Fits 1-7/8 In., 2 In., And 2-5/16 in. Couplers, Yellow, 72783
Advance Auto Parts
28K+
$30.99
Reese Universal Coupler Lock, Fits 1-7/8 In., 2 In., And 2-5/16 in. Couplers, Yellow, 72783
Advance Auto Parts
$24.99
CURT Coupler Lock (1/4" Pin, 3/4" Latch Span, Padlock, Black), 23521
Advance Auto Parts
2K+
$24.99
CURT Coupler Lock (1/4" Pin, 3/4" Latch Span, Padlock, Black), 23521
Advance Auto Parts
$384.95
The Icon Trailer Coupler Lock 2-5/16" Ball Extreme Duty Patented Anti-Theft Design
RecPro
Free shipping
$384.95
The Icon Trailer Coupler Lock 2-5/16" Ball Extreme Duty Patented Anti-Theft Design
RecPro
$23.08
TC3 KEYED ADJUSTABLE COUPLER LOCK, Keyed Alike - All Locks Open With Same Key
1st-in-Padlocks
20
$23.08
TC3 KEYED ADJUSTABLE COUPLER LOCK, Keyed Alike - All Locks Open With Same Key
1st-in-Padlocks
$39.18
SXTC3 KEYED ADJUSTABLE COUPLER LOCK, Keyed Alike - All Locks Open With Same Key
1st-in-Padlocks
$39.18
SXTC3 KEYED ADJUSTABLE COUPLER LOCK, Keyed Alike - All Locks Open With Same Key
1st-in-Padlocks
$67.99
Trimax Deluxe Universal Dual-Purpose Trailer Coupler Lock With An Integrated U-Lock Feature, Model UMAX50D
Northern Tool
$67.99
Trimax Deluxe Universal Dual-Purpose Trailer Coupler Lock With An Integrated U-Lock Feature, Model UMAX50D
Northern Tool
$32.99
CURT Coupler Lock (1/4" Pin, 3/4" Latch Span, Padlock, Solid Brass), 23546
Advance Auto Parts
24
$32.99
CURT Coupler Lock (1/4" Pin, 3/4" Latch Span, Padlock, Solid Brass), 23546
Advance Auto Parts
$69.65
Blaylock Trailer Coupler Lock With Disc Padlock - Fits 2in. And 2-5/16in. Couplers, Heavy-Duty Aircraft Aluminum, Model TL-33-40-D
Northern Tool
Free shipping
$69.65
Blaylock Trailer Coupler Lock With Disc Padlock - Fits 2in. And 2-5/16in. Couplers, Heavy-Duty Aircraft Aluminum, Model TL-33-40-D
Northern Tool
$57.66
BULLDOG (2-Pack) Trailer Coupler Lock, Adjustable, 360 Degree Head
TowUniverse.com
$57.66
BULLDOG (2-Pack) Trailer Coupler Lock, Adjustable, 360 Degree Head
TowUniverse.com
$164.30
Master Lock 377KA, No. 377 Trailer Coupler Lock, Keyed Alike
MegaDepot
$164.30
Master Lock 377KA, No. 377 Trailer Coupler Lock, Keyed Alike
MegaDepot
$170.90
Master Lock 377KA (KA0313), No. 377 Trailer Coupler Lock, Keyed Alike
MegaDepot
$170.90
Master Lock 377KA (KA0313), No. 377 Trailer Coupler Lock, Keyed Alike
MegaDepot
$212.60
Master Lock 379ATPY, Universal Trailer Coupler Lock, Keyed Different
MegaDepot
4K+
$212.60
Master Lock 379ATPY, Universal Trailer Coupler Lock, Keyed Different
MegaDepot
$42.99
Draw-Tite Trailer Coupler Lock, Fits 2 in. Coupler, Gorilla Guard
TowUniverse.com
1K+
$42.99
Draw-Tite Trailer Coupler Lock, Fits 2 in. Coupler, Gorilla Guard
TowUniverse.com
$54.90
Rhino USA Trailer Hitch Coupler Lock Kit (For 2-5/16" Trailers) Heavy Duty Anti-Theft Tongue Locks
Walmart
225
Free shipping
$54.90
Rhino USA Trailer Hitch Coupler Lock Kit (For 2-5/16" Trailers) Heavy Duty Anti-Theft Tongue Locks
Walmart
$43.34
Towsmart Proclass Coupler Lock, Heavy Duty, Fits 1-7/8In, 2In, And 2-5/16in Couplers, 7329, 1 Each
Walmart
47
Free shipping
$43.34
Towsmart Proclass Coupler Lock, Heavy Duty, Fits 1-7/8In, 2In, And 2-5/16in Couplers, 7329, 1 Each
Walmart
$54.90
Rhino USA Trailer Hitch Coupler Lock Kit (For 2" Trailer) Heavy Duty Anti-Theft Tongue Locks
Walmart
2
Free shipping
$54.90
Rhino USA Trailer Hitch Coupler Lock Kit (For 2" Trailer) Heavy Duty Anti-Theft Tongue Locks
Walmart
$51.85
Dixon 3/4 in. Aluminum EZ Boss-Lock Cam & Groove Couplers - AD075EZ
John M. Ellsworth Co., Inc.
$51.85
Dixon 3/4 in. Aluminum EZ Boss-Lock Cam & Groove Couplers - AD075EZ
John M. Ellsworth Co., Inc.
$42.99
Draw-Tite Trailer Coupler Lock For 2 in. Coupler, Gorilla Guard
TowUniverse.com
1K+
$42.99
Draw-Tite Trailer Coupler Lock For 2 in. Coupler, Gorilla Guard
TowUniverse.com
$67.99
Trimax Universal Die-Cast Dual Locking Coupler Lock - UMAX100
Defender Marine
2K+
$67.99
Trimax Universal Die-Cast Dual Locking Coupler Lock - UMAX100
Defender Marine
$60.95
Master Lock Gray Zinc Die Cast Coupler Lock
Airgas
1K+
$60.95
Master Lock Gray Zinc Die Cast Coupler Lock
Airgas
$79.51
Trimax Stainless Steel Coupler & Receiver Lock 5/8"X2.75" Span
PartsGiant
54
Free shipping
$79.51
Trimax Stainless Steel Coupler & Receiver Lock 5/8"X2.75" Span
PartsGiant
$55.99
Fastway Fortress Coupler Lock - 86-00-5015
Defender Marine
2
$55.99
Fastway Fortress Coupler Lock - 86-00-5015
Defender Marine
$59.99
Trimax Universal Keyed-Alike Receiver Coupler Lock Set, 1/2" - 5/8" X 2-3/4" Receiver And 7/8" - 3-1/2" Span Coupler | Camping World
Camping World
4
$59.99
Trimax Universal Keyed-Alike Receiver Coupler Lock Set, 1/2" - 5/8" X 2-3/4" Receiver And 7/8" - 3-1/2" Span Coupler | Camping World
Camping World
Kaycentop Trailer Coupler Lock #unlocked #lockpicking #fyp #foryou #viral | Picking Locks
1:43
Kaycentop Trailer Coupler Lock #unlocked #lockpicking #fyp #fory…
9.9K viewsAug 12, 2023
FacebookPicking Locks
6K views · 33 reactions | Our Model-GB Gooseneck coupler lock is easy...
0:31
6K views · 33 reactions | Our Model-GB Gooseneck coupler lock is eas…
8K views1 week ago
FacebookProven Industries
Top 5 Best Safe Locks in 2026 • (Mechanical & Electronic)
Top 5 Best Safe Locks in 2026 • (Mechanical & Electronic)
Jan 28, 2022
antitheftboss.com
Top 5 Best & Most Secure Trailer Hitch Locks • (2026 Reviews)
Top 5 Best & Most Secure Trailer Hitch Locks • (2026 Reviews)
Aug 2, 2020
antitheftboss.com
How to Properly Secure Your RV Coupler Lock
How to Properly Secure Your RV Coupler Lock
219.7K viewsMay 16, 2022
TikTokrvgearandfar
REESE Towpower 72783 Coupler Lock
REESE Towpower 72783 Coupler Lock
1.5K viewsNov 16, 2021
YouTubeReviews Unscripted
Rhino USA Coupler Lock Kit for Enhanced Security
Rhino USA Coupler Lock Kit for Enhanced Security
8.9K views10 months ago
TikTokoletc
9:56
PowerLatch TwinLock Quick Coupler
33.2K viewsOct 28, 2012
YouTubeMiller Groundbreaking
1:52
CM Hammerlok Coupling Link
104.9K viewsJan 27, 2015
YouTubeColumbus McKinnon
4:39
Coned & Threaded Fittings Explained
20.3K viewsJun 13, 2018
YouTubeDynexHydraulics
4:55
(1537) TriMax UMAX50 Trailer Coupler Lock
59.1K viewsJul 26, 2019
YouTubeBill Johnson
0:34
SS Camlock Fitting to use
67.8K viewsAug 23, 2016
YouTubeK&G
14:18
DIY Travel Trailer Lock - How To Make
316.1K viewsApr 11, 2019
YouTubehomesteadonomics
3:14
[845] Master Locks With INEXCUSABLE Design Flaws
6.2M viewsMar 2, 2019
YouTubeLockPickingLawyer
2:10
Safety Quick Connect Couplings Series ESI - ESIK
18.2K viewsJun 15, 2020
YouTubeLüdecke GmbH
3:57
Trailer Safety Series - Gooseneck Coupling & Maintenance
88.9K viewsOct 22, 2018
YouTubePJ Trailers
4:29
Coupler Locks to Secure Your Trailer
52.5K viewsJun 4, 2021
YouTubeU-Haul Trailer Hitches And Towing
2:14
Wedge Lock Coupler for Rebar
339.8K viewsAug 8, 2018
YouTubeBin Chin
2:10
Improvements to the LockNLube Grease Coupler
51.8K viewsDec 16, 2016
YouTubeLockNLube
1:46
U-Haul Stainless Coupler Lock: Review and Demo
9.6K viewsJun 4, 2021
YouTubeU-Haul Trailer Hitches And Towing
4:26
[660] Ramset vs. Reese Trailer Coupler Lock
1.4M viewsApr 13, 2018
YouTubeLockPickingLawyer
7:26
(1532) Master Lock Trailer Couplers (379ATPY & 389DAT) (JUNK!)
106.3K viewsJul 17, 2019
YouTubeBill Johnson
2:11
How to Use Quick Connect Fittings
466.1K viewsFeb 23, 2010
YouTubeTier1 Water and Air Filtration
20:41
The Best Trailer Lock Just Got Better!
54.1K viewsDec 9, 2019
YouTubeRough Rider's Adventures
10:35
LockNLube VS safeLOCK - Best Locking Grease Coupler
27.6K viewsMay 3, 2021
YouTubeThrifty Garage
3:53
How to Install B-LOC WK Rigid Shaft Couplings
6K viewsJan 29, 2014
YouTubeFenner Drives
13:12
The Best Trailer Lock you can get!
95.5K viewsSep 11, 2020
YouTubeTools In Action
6:10
Selecting a Coupling for a Shaft
105.7K viewsApr 29, 2016
YouTubeRedVectorOnline
4:47
Are E-Locks Reliable for Your Gun Safe? Everything You Need to Kn…
106.9K viewsNov 26, 2019
YouTubeThe Home and Gun Safe Channel
3:27
6 different coupling types explained by Coupling Tips
142.7K viewsMay 13, 2015
YouTubeDesign World
See more videos
Static thumbnail place holder

Shop Most Secure Coupler Lock

Sponsored
About our ads
$19.00
Steel Lockout Hasp - 1 1/2" - Master Lock - Pack Of 2
Uline
$19.00
Steel Lockout Hasp - 1 1/2" - Master Lock - Pack Of 2
Uline
$126.00
Master Lock Lockout Padlock - Set Of 6 Keyed Alike, 1 1/2" Shackle, Red - Master Lock - Pack Of 6
Uline
$126.00
Master Lock Lockout Padlock - Set Of 6 Keyed Alike, 1 1/2" Shackle, Red - Master Lock - Pack Of 6
Uline
$44.00
Aluminum Lockout Padlock - Keyed Different, Yellow - Master Lock - Qty Of 2
Uline
$44.00
Aluminum Lockout Padlock - Keyed Different, Yellow - Master Lock - Qty Of 2
Uline
$80.99
VEVOR Trailer Coupler Lock Fits 2-5/16-Inch Cast/Bulldog Trailer Couplers Heavy Duty Trailer Hitch Lock With 3 Keys Corrision-Resistant Anti-Theft
VEVOR
$80.99
VEVOR Trailer Coupler Lock Fits 2-5/16-Inch Cast/Bulldog Trailer Couplers Heavy Duty Trailer Hitch Lock With 3 Keys Corrision-Resistant Anti-Theft
VEVOR
$66.95
Master Lock Trailer Coupler Lock, 2-5/16" - 378DAT
Global Industrial
3K+
$66.95
Master Lock Trailer Coupler Lock, 2-5/16" - 378DAT
Global Industrial
$89.99
2026 Upgraded Trailer Lock Fits 2-5/16 Inch Coupler, Heavy Duty Trailer Hitch Locks, Anti-Theft Trailer Coupler Lock For RV, Trailer, Boat, Pickup(Red
Amazon.com
65
Free shipping
$89.99
2026 Upgraded Trailer Lock Fits 2-5/16 Inch Coupler, Heavy Duty Trailer Hitch Locks, Anti-Theft Trailer Coupler Lock For RV, Trailer, Boat, Pickup(Red
Amazon.com
$187.80
Master Lock Universal Trailer Coupler Lock, Fits Most 1-7/8", 2" And 2-5/16" Couplers - 389DAT - Pkg Qty 4
Global Industrial
16K+
$187.80
Master Lock Universal Trailer Coupler Lock, Fits Most 1-7/8", 2" And 2-5/16" Couplers - 389DAT - Pkg Qty 4
Global Industrial
$19.99
TOPICK Trailer Coupler Lock, Universal Coupler Ball Lock, Trailer Security Hitch Locks, Fits 1-7/8", 2", And 2-5/16" Couplers, Matte Black With PVC
Amazon.com
2
$19.99
TOPICK Trailer Coupler Lock, Universal Coupler Ball Lock, Trailer Security Hitch Locks, Fits 1-7/8", 2", And 2-5/16" Couplers, Matte Black With PVC
Amazon.com
$55.90
VEVOR Collar Coupler Lock Fits 2 & 2-5/16-Inch Demco Cast Head Couplers Trailer Hitch Lock With 3 Keys Secures Security Chains Rust-Resistant
VEVOR
2
$55.90
VEVOR Collar Coupler Lock Fits 2 & 2-5/16-Inch Demco Cast Head Couplers Trailer Hitch Lock With 3 Keys Secures Security Chains Rust-Resistant
VEVOR
$69.90
VEVOR Trailer Lock Fits 2-5/16-Inch Airstream Couplers Heavy Duty Hitch Lock With 3 Keys Secures Security Chains Rust-Resistant Anti-Theft Trailer
VEVOR
$69.90
VEVOR Trailer Lock Fits 2-5/16-Inch Airstream Couplers Heavy Duty Hitch Lock With 3 Keys Secures Security Chains Rust-Resistant Anti-Theft Trailer
VEVOR
$37.95
Master Lock Universal Coupler Lock, Rekeyable Cylinder, Fits 1-7/8", 2" & 2-5/16", 379ATPY
Global Industrial
4K+
$37.95
Master Lock Universal Coupler Lock, Rekeyable Cylinder, Fits 1-7/8", 2" & 2-5/16", 379ATPY
Global Industrial
$60.66
TM3123 KEYED RECEIVER & ADJUSTABLE COUPLER LOCK, Keyed Alike - All Locks Open With Same Key
1st-in-Padlocks
55
$60.66
TM3123 KEYED RECEIVER & ADJUSTABLE COUPLER LOCK, Keyed Alike - All Locks Open With Same Key
1st-in-Padlocks
$37.99
Ultra-Tow Universal Coupler Lock, Fits 1-7/8In., 2in. And 2-5/16in. Couplers
Northern Tool
$37.99
Ultra-Tow Universal Coupler Lock, Fits 1-7/8In., 2in. And 2-5/16in. Couplers
Northern Tool
$30.99
Reese Universal Coupler Lock, Fits 1-7/8 In., 2 In., And 2-5/16 in. Couplers, Yellow, 72783
Advance Auto Parts
28K+
$30.99
Reese Universal Coupler Lock, Fits 1-7/8 In., 2 In., And 2-5/16 in. Couplers, Yellow, 72783
Advance Auto Parts
$24.99
CURT Coupler Lock (1/4" Pin, 3/4" Latch Span, Padlock, Black), 23521
Advance Auto Parts
2K+
$24.99
CURT Coupler Lock (1/4" Pin, 3/4" Latch Span, Padlock, Black), 23521
Advance Auto Parts
$384.95
The Icon Trailer Coupler Lock 2-5/16" Ball Extreme Duty Patented Anti-Theft Design
RecPro
Free shipping
$384.95
The Icon Trailer Coupler Lock 2-5/16" Ball Extreme Duty Patented Anti-Theft Design
RecPro
$23.08
TC3 KEYED ADJUSTABLE COUPLER LOCK, Keyed Alike - All Locks Open With Same Key
1st-in-Padlocks
20
$23.08
TC3 KEYED ADJUSTABLE COUPLER LOCK, Keyed Alike - All Locks Open With Same Key
1st-in-Padlocks
$39.18
SXTC3 KEYED ADJUSTABLE COUPLER LOCK, Keyed Alike - All Locks Open With Same Key
1st-in-Padlocks
$39.18
SXTC3 KEYED ADJUSTABLE COUPLER LOCK, Keyed Alike - All Locks Open With Same Key
1st-in-Padlocks