Best Trailer Coupling Locks 2026

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Last Updated - 22.07.2026

Best Choice

01

NiwNiw

NiwNiw Drawbar Lock & Caravan Lock for ALKO AK130/160, AKS1300/2004/3004, Anti-Theft Device with Anti-Slinger Coupling for Caravan & Trailers

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9.8

Exceptional

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TAILORED FOR ALKO CLUTCHINGS The NiwNiw ALKO Heavy Duty Clutch Lock is specifically designed to fit ALKO couplings of models AK130, AK160, AKS1300, AKS2004 and AKS3004 to provide custom fit protection and ensure the safety of your caravan or trailer.
STRONG AND DURABLE: Made from high quality materials, this lock guarantees sturdiness and longevity - even in extreme weather conditions.
LIGHTWEIGHT AND COMPACT Despite its strong performance, the NiwNiw ALKO clutch lock remains lightweight and compact, making transportation and storage straightforward.
Eye-catching deterrent design: the eye-catching design of the NiwNiw ALKO clutch lock not only serves the functional purpose, but also acts as a visible deterrent for potential thieves.
ANTI-THEFT DURABILITY This high quality anti-theft lock reliably immobilizes your hitch, effectively prevents theft from driving away, and provides extra protection for your valuable trailers.

49,59 €
02

TRIBURG

TRIBURG Trailer Lock with Round Lock [Insurance Compliant] – Robust Security for Attached and Uncoupled Trailers – Drawbar Lock [Galvanised I Powder Coated] + Free AHK Protective Cap

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9.7

Exceptional

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Universal – the Triburg trailer box lock fits almost any standard trailer hitch
The clutch lock is galvanised before powder coating and thus gets double protection against corrosion. Thus, theft protection is given every year
Please note: not suitable for anti-slinger couplings or oversized couplings that exceed the inner dimensions of the Triburg fuse of 8 cm height x 10 cm width, such as AL-KO AK 7, 301, 351 or KNOTT AV50, AV35
On / off – no time or desire to uncoupling the trailer? No problem! Simply coupled, secure against theft. The anti-theft device also works when disconnected.
Anti-theft – the best break-up protection of the box security and thus the highest theft protection for your car trailer is ensured by our extremely robust and stable round lock. *Insurance Compliant: Compliant with the requirements of most insurance companies. Please note the terms of your insurance.

38,90 €
03

TRIBURG

TRIBURG Trailer lock.

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Universal – the Triburg trailer box lock fits almost any standard trailer hitch
The clutch lock is galvanised before powder coating and thus gets double protection against corrosion. Thus, theft protection is given every year
Please note: not suitable for anti-slinger couplings or oversized couplings that exceed the inner dimensions of the Triburg fuse of 8 cm height x 10 cm width, such as AL-KO AK 7, 301, 351 or KNOTT AV50, AV35
On / off – no time or desire to uncoupling the trailer? No problem! Simply coupled, secure against theft. The anti-theft device also works when disconnected.
Anti-theft – the best break-up protection of the box security and thus the highest theft protection for your car trailer is ensured by our extremely robust and stable round lock. *Insurance Compliant: Compliant with the requirements of most insurance companies. Please note the terms of your insurance.

38,90 €
04

trailer parts4u

Knott KS 35/25 / 30 / Including SafetyBall Anti-Theft Device for Anti-Slinger Coupling Security Coupling Lock 210174.001 210174001 Also for WS 3000 from 2003 and iSC Alko

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9.4

Excellent

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Also suitable for WS 3000 from 2003 6 Alko iSC

26,90 €
Value for Money

05

Monzana

Trailer Hitch Lock For All Standard Hitches – Easy to install – Theft Protection

15% Off Limited Time Deal

15% Off

Limited Time Deal

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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The lock is made of solid steel and thus offers optimal protection against theft.
Suitable for use with all current hitches with 50 mm inlet. The ball head is connected in and the trailer then safely locked with the steel shackle.
Protect your trailer, caravan or trailer from theft quickly and easily with this solid hanging lock from Monzana.
Contents: 1 x trailer lock in yellow signal colour, incl. 2 keys.

16,95 € 19,95 €(15% Off off)
06

iapyx

iapyx Trailer Anti-Theft Lock Box Lock Including Security Lock Trailer Anti-Theft Device

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9.2

Excellent

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Trailer optimally secured against theft
Set price for 3 pieces consisting of:
1 x trailer anti-theft box lock, solid workmanship (see picture 1)
+1 discus lock made of stainless steel 70 mm with 2 keys (picture 3)
+ 1 tow bar cover cap with retaining ring (see picture 2)

19,99 €
07

Relaxdays

Relaxdays Trailer Lock with Round Lock, Anti-Theft, Hanging Lock for Standard Couplings, Box Lock, Black

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Universal: reliable anti-theft device for standard couplings - not for anti-slinger coupling
Solid: trailer lock made of robust, 3 mm thick steel - no unauthorised stealing of the trailer
Simple: quick installation - slide box lock onto coupling, secure with bolts and lock
Safe: box lock with discus lock and 2 keys - protective cut-out for round lock
Protection: Protect classic trailers, caravans or trailers from theft with the trailer lock

24,99 €
08

Relaxdays

Relaxdays 10031042 Trailer Lock, Standard for Standard Couplings, Anti-Theft Protection, Round Lock, Box Lock, Trailer Lock, Steel, Silver, 11 x 15 x 23.5 cm

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Universal: reliable anti-theft device with 2 slots for all standard tow bars
Solid: trailer lock made of robust, 3 mm thick steel - no unauthorised stealing of the trailer
Simple: quick installation - slide box lock onto coupling, secure with latch and lock
Safe: box lock with round lock made of stainless steel for secure locking, includes 2 keys
Protection: Protect classic trailers, caravans or trailers from theft with the trailer lock

20,99 €
09

VonLux

Trailer Lock, Trailer Lock with 2 Keys for Towing Hitch, Anti-Theft Clutch Lock, Trailer Tow Lock for Clutch Inlet of 1-7/8 & 2 & 2-5/16 Inch

11% Off

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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【Wide Application】: The trailer lock can be used on most vehicle tow bars. The coupling diameter is 47 mm. Available for 1-7/8", 2" and 2-5/16" couplers. The hitch lock is an essential anti-theft tool for locking your vehicle.
【High Security】: The trailer lock comes with 2 matching keys. The newly designed cross lock cylinder is not only wear-resistant and durable, but also extremely safe and difficult to damage.
【High Quality】: The trailer lock is made of high-strength carbon steel and aluminium alloy, very strong and durable. The hitch lock is waterproof, rust-proof, corrosion-resistant, wear-resistant and not easy to break or deform.
【Easy to install and use】: All you need to do is attach the trailer lock to the trailer hitch and then adjust the height according to the actual situation, so that the U-shaped locking bar can be easily pushed into the tow bar.
【Adjustable】: The U-shaped locking bar of the trailer hitch lock has 10 locking positions. You can adjust the appropriate height to different vehicle sizes. Make sure your trailer lock locks your vehicle better and stays secure.

17,80 € 19,90 €(11% Off off)
10

BELKO

BELKO Trailer Lock for Common Towing Hitch 47 mm – Includes 2 Keys, Rubber Protection, Cover Cap – Towing Ball Lock Coupling Anti-Theft Trailer Safety Tow Lock

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Universal fit: suitable for all standard couplings with 47 mm inlet. The ball head is coupled and then closed with a solid steel shackle.
Thoughtful details: scratch protection thanks to rubber coating on the steel shackle and the highest safety standards thanks to the Bormulden lock. A lock cover cap protects against the elements and increases durability.
Safety and protection: the BELKO trailer lock is an ideal protection to protect your trailer, caravan or trailer from theft.
Easy to use: the lock can be easily inserted and removed with just a few simple steps. Simply place the ball head in the inlet, lock it securely with the steel shackle and you can park your trailer without worry.
Compact and suitability: thanks to the compact design, the lock can be stowed away in the boot to save space, for example. Protect your trailer, horse trailer, caravan and much more.

13,99 €