Best Anti Theft Trailer Hitch Locks

Looking for the best anti-theft trailer hitch locks to keep your trailer safe? We’ve tested and reviewed the top 10 locks to help you find the perfect one for your needs.

Trailer theft is a real worry for many owners. A good anti-theft trailer hitch lock can give you peace of mind. We’ve tested and reviewed the best locks to keep your trailer safe.

These locks are easy to use and built tough. They fit most trailer sizes and work in all weather. You’ll find the perfect lock for your needs here.

Ready to protect your trailer? Let’s dive into the top picks and find the best lock for you.

List of Top 10 Anti Theft Trailer Hitch Locks

Title	Best For	Price
Master Lock Trailer Lock, Black Trailer Tongue Lock 379ATPY	This Master Lock Trailer Lock is perfect for anyone who owns a trailer, RV, camper, boat trailer, or utility trailer. It’s ideal for keeping your towing equipment safe when parked, stored, or unattended.	View on Amazon (paid link)
Master Lock Trailer Lock, Trailer Hitch Lock fits 1-7/8″,2″ & 2-5/16″ Red	This Master Lock Trailer Lock fits over your hitch and keeps the trailer safe from thieves. The bright red color scares thieves away, and the strong lock stops them from taking it.	View on Amazon (paid link)
Rhino USA 2in Trailer Hitch Pin – Patented Locking Receiver Pin	This locking hitch pin is perfect for truck owners and RV owners who want to keep their trailers safe from theft. It’s also great for anyone who tows often and wants extra peace of mind.	View on Amazon (paid link)
METOWARE Trailer Coupler Lock, Fit 1-7/8″, 2″, 2-5/16″ Coupler, Yellow	The METOWARE Trailer Coupler Lock is perfect for trailer owners, boaters, and campers who want to keep their trailers safe from theft.	View on Amazon (paid link)
Rhino USA Trailer Coupler Lock Kit (2-5/16in Trailers) – Anti-Theft Steel	This Rhino USA Trailer Coupler Lock Kit is perfect for trailer owners who want strong protection. It’s great for boats, RVs, and campers stored at home or on job sites.	View on Amazon (paid link)
METOWARE Heavy-Duty Universal Trailer Coupler Lock Adjustable Trailer Lock	This METOWARE Heavy-Duty Universal Trailer Coupler Lock is perfect for anyone who owns a trailer. It’s easy to use and fits most coupler sizes, keeping your trailer safe and secure.	View on Amazon (paid link)
Trailer Hitch Locks with Keys, Universal Size Fit 1-7/8,2-5/16,2 Inch Ball Hitch Coupler Lock, Adjustable Heavy Duty Steel Trailer Tongue Lock for Boat, Trailers and RV, Anti-Theft Hitches, Red-1 Pack	This trailer hitch lock is perfect for anyone who owns a boat, RV, camper, or truck. It keeps your trailer safe from theft with its heavy-duty steel and anti-theft design.	View on Amazon (paid link)
RETRUE Trailer Tongue Hitch Coupler Lock, 1/4in Dia, 3/4in Span, Black	This RETRUE Trailer Tongue Hitch Coupler Lock is perfect for trailer owners who want strong protection against theft. It’s easy to use and fits most trailers, making it a great choice for everyone.	View on Amazon (paid link)
RETRUE Universal Trailer Coupler Hitch Lock, Adjustable Heavy Duty, Yellow	This bright yellow lock fits all your trailers. It blocks thieves so you feel safe.	View on Amazon (paid link)
BVLLVT Heavy Duty Trailer Hitch Lock for 2 5/16″ Ball Coupler – Adjustable Locking Mechanism Design – Anti-Theft Solid Steel Coupler Lock for RV, Boat, Camper Trailer	RV, boat, and camping owners need this lock for their trailers. It gives your vehicle extra safety that is easy to use.	View on Amazon (paid link)

Detailed Reviews

Discover the top 10 anti-theft trailer hitch locks in this expert-reviewed guide. Each lock is chosen for its security, durability, and ease of use, ensuring your trailer stays safe. Whether you need universal fit, weather resistance, or advanced locking, we’ve got you covered. Find the perfect lock to protect your trailer, RV, or boat with confidence.

1. Master Lock Trailer Lock, Black Trailer Tongue Lock 379ATPY

Master Lock Trailer Lock keeps your trailer safe from theft. It blocks unauthorized coupling easily. Use it on parked trailers, RVs, and campers.

Fits 1-7/8 inch, 2 inch, and 2-5/16 inch couplers well. One lock works for many towing setups. Great for boat trailers and utility trailers too.

Advanced locking stops picking and prying. Zinc build fights rust and weather. Two keys included—ready to use now.

Pros	Cons
Stops theft with secure trailer lock for peace of mind. Fits all couplers, one lock for every towing need. Rust-proof zinc lasts in any weather condition. Keyed protection resists picking and prying attempts. Ready to use with two included keys.	No anti-theft alarm for added security. Keys can get lost, leaving lock unusable. Bulkier design may obstruct tight spaces.

Perfect For:

This Master Lock Trailer Lock is perfect for anyone who owns a trailer, RV, camper, boat trailer, or utility trailer. It’s ideal for keeping your towing equipment safe when parked, stored, or unattended.

Ready to Purchase?

View Price on Amazon (paid link)

2. Master Lock Trailer Lock, Trailer Hitch Lock fits 1-7/8″,2″ & 2-5/16″ Red

The Master Lock Trailer Lock is a universal coupler lock that fits 1-7/8″, 2″, and 2-5/16″ hitches. Its bright red finish makes it highly visible, discouraging thieves from tampering with your trailer.

This lock features an advanced locking mechanism that resists picking and prying. It’s also rust-resistant, corrosion-resistant, and easy to install or remove.

Pros	Cons
Bright red color deters thieves from targeting your trailer. Fits all sizes (1-7/8″, 2″, 2-5/16″) for universal use. Advanced lock resists picking and prying for extra security. Rust-resistant and easy to install, lasting longer.	Bright red color may not match all trailer styles. No keyless option for those who prefer convenience. Bulkier design might limit space around the hitch.

Perfect For:

This Master Lock Trailer Lock fits over your hitch and keeps the trailer safe from thieves. The bright red color scares thieves away, and the strong lock stops them from taking it.

Ready to Purchase?

View Price on Amazon (paid link)

3. Rhino USA 2in Trailer Hitch Pin – Patented Locking Receiver Pin

The Rhino USA 2in Trailer Hitch Pin is built tough. It’s made from solid steel for maximum security. Protect your trailer and hitch with ease.

This anti-theft hitch pin fits all Class III & IV hitches. Its patented slide cap keeps dirt out. It’s weatherproof and durable.

Join the Rhino USA Family today. Enjoy lifetime replacement and USA-based support. Get ultimate peace of mind now.

Pros	Cons
Solid steel ensures maximum security for your trailer and hitch. Fits all Class III & IV hitches for easy, reliable towing. Patented slide cap keeps the pin clean and durable. Lifetime replacement guarantees 100% satisfaction with every purchase.	No key included with the hitch pin. May not fit non-standard hitch sizes. Price higher than some competitors.

Perfect For:

This locking hitch pin is perfect for truck owners and RV owners who want to keep their trailers safe from theft. It’s also great for anyone who tows often and wants extra peace of mind.

Ready to Purchase?

View Price on Amazon (paid link)

4. METOWARE Trailer Coupler Lock, Fit 1-7/8″, 2″, 2-5/16″ Coupler, Yellow

The METOWARE Trailer Coupler Lock is heavy-duty and bright yellow, making it highly visible and tough. It fits 1-7/8″, 2″, and 2-5/16″ couplers, working for most trailers. Its 11 locking positions ensure a secure fit every time.

This lock is easy to install and remove, saving you time. It’s weatherproof and rust-resistant, so it lasts long and stays reliable.

Pros	Cons
Heavy Metal builds strong protection for your trailer. Universal Fit works with 3 easy sizes. Ratchet Design lets you lock it fast. Zinc Alloy resists rust from rain or snow. Durable Rubber caps keep snow and dirt out.	Bright yellow color may not suit all trailer styles. No key backup included if the original is lost. Rubber caps might wear out over time with heavy use.

Perfect For:

The METOWARE Trailer Coupler Lock is perfect for trailer owners, boaters, and campers who want to keep their trailers safe from theft.

Ready to Purchase?

View Price on Amazon (paid link)

5. Rhino USA Trailer Coupler Lock Kit (2-5/16in Trailers) – Anti-Theft Steel

The Rhino USA Trailer Coupler Lock Kit keeps your 2-5/16″ trailers safe from theft. Its heavy-duty steel design fits A-Frame, 50×50, and 50×60 couplers perfectly.

It’s rust-proof and weather-resistant, so it lasts long. One key works for both locks, making it easy to use. Lifetime replacement ensures you’re always covered.

Pros	Cons
Fits standard 2-5/16 inch couplers. Strong powder coat stops rust. One key opens both locks. Stops thieves from stealing your gear. Get a free lifetime replacement.	Not for all couplers – Incompatible with rolled-lip or underslung designs. Limited size range – Only fits specific coupler sizes, check before buying. No extra keys – Only two keys included, easy to lose.

Perfect For:

This Rhino USA Trailer Coupler Lock Kit is perfect for trailer owners who want strong protection. It’s great for boats, RVs, and campers stored at home or on job sites.

Ready to Purchase?

View Price on Amazon (paid link)

6. METOWARE Heavy-Duty Universal Trailer Coupler Lock Adjustable Trailer Lock

This METOWARE lock keeps your trailer safe. It fits many coupler sizes.

The ratchet wheel lets you set the fit fast. Its aluminum body resists rust well. It endures rain and cold.

The special zinc core is very hard to break. It offers top safety for your load. Setup is quick and simple.

Pros	Cons
Fits all common coupler sizes for universal use. Quick install, easy removal with 11 adjustable positions. Rust-resistant, heavy-duty build for long-lasting protection. Advanced lock core ensures maximum security against theft. Weatherproof design keeps dust and water out.	Heavy and bulky, may be hard to carry around. No key backup if you lose the original. Pricey compared to other trailer locks.

Perfect For:

This METOWARE Heavy-Duty Universal Trailer Coupler Lock is perfect for anyone who owns a trailer. It’s easy to use and fits most coupler sizes, keeping your trailer safe and secure.

Ready to Purchase?

View Price on Amazon (paid link)

7. Trailer Hitch Locks with Keys, Universal Size Fit 1-7/8,2-5/16,2 Inch Ball Hitch Coupler Lock, Adjustable Heavy Duty Steel Trailer Tongue Lock for Boat, Trailers and RV, Anti-Theft Hitches, Red-1 Pack

Trailer Hitch Locks with Keys, Universal Size Fit 1-7/8,2-5/16,2 Inch Ball Hitch Coupler Lock, Adjustable Heavy Duty Steel Trailer Tongue Lock for Boat, Trailers and RV, Anti-Theft Hitches, Red-1 Pack

Keep your trailer safe with this red trailer hitch lock. It fits 1-7/8, 2-5/16, and 2 inch ball hitches.

It is made of heavy-duty steel to stop thieves. The bright red color helps people see it right away. Just one turn of the key keeps it very safe.

This lock is easy to install on any trailer. It works well for boats, RVs, trucks, and campers. You can adjust it to fit your needs.

Pros	Cons
Strong steel for extra security. Fits many hitch sizes. Bright red for high visibility. Easy to install in seconds. Rust resistant for long use.	No weatherproof guarantee, may rust in harsh conditions. Single key included, risk of losing the only access. Red color might not blend with all trailer designs.

Perfect For:

This trailer hitch lock is perfect for anyone who owns a boat, RV, camper, or truck. It keeps your trailer safe from theft with its heavy-duty steel and anti-theft design.

Ready to Purchase?

View Price on Amazon (paid link)

8. RETRUE Trailer Tongue Hitch Coupler Lock, 1/4in Dia, 3/4in Span, Black

The RETRUE Trailer Tongue Hitch Coupler Lock is a universal fit for latch-type couplers. It has a 1/4-inch diameter pin and a maximum span of 3/4 inches.

This lock is easy to use, highly secure, and built to last. It comes with 2 keys and is made of high-strength materials. The black painted finish protects against the elements.

Pros	Cons
Universal fit for most latch-type couplers, up to 3/4 inches. High-strength zinc alloy ensures durable, long-lasting security. Padlock-style design with 1/4-turn lock for easy, quick use. Corrosion-resistant finish protects against weather and wear. Two keys included for added convenience and peace of mind.	No anti-pick feature for added security against lock picking. Keys can get lost, leaving the lock useless without a backup. Not weatherproof, may rust over time despite zinc plating.

Perfect For:

This RETRUE Trailer Tongue Hitch Coupler Lock is perfect for trailer owners who want strong protection against theft. It’s easy to use and fits most trailers, making it a great choice for everyone.

Ready to Purchase?

View Price on Amazon (paid link)

9. RETRUE Universal Trailer Coupler Hitch Lock, Adjustable Heavy Duty, Yellow

The RETRUE Universal Trailer Coupler Hitch Lock is a must-have for trailer owners. It’s adjustable and fits most coupler sizes.

This lock is bright yellow, making it easy to spot. It’s durable and weatherproof, so it lasts long. The upgraded design adds extra security.

Made with strong materials, it resists cutting and rust. It comes with 2 keys and a 120-day warranty. Contact us anytime for quick help.

Pros	Cons
Fits all, with 11 adjustable positions for any trailer coupler size. Bright yellow, highly visible, and deters theft effectively. Heavy-duty, rustproof, and weatherproof for long-lasting security. Enhanced lock, thicker keys, and impossible to crack.	Bright yellow color may not suit all trailer styles. No anti-theft alarm or advanced security features included. Keys could get lost, requiring careful storage.

Perfect For:

This bright yellow lock fits all your trailers. It blocks thieves so you feel safe.

Ready to Purchase?

View Price on Amazon (paid link)

10. BVLLVT Heavy Duty Trailer Hitch Lock for 2 5/16″ Ball Coupler – Adjustable Locking Mechanism Design – Anti-Theft Solid Steel Coupler Lock for RV, Boat, Camper Trailer

The BVLLVT Heavy Duty Trailer Hitch Lock keeps your trailer, RV, or boat safe and secure. Its precision ball head design ensures a snug, wobble-free fit, preventing theft and accidental detachment. The adjustable locking mechanism works with more coupler types, making it versatile and reliable.

Its solid aluminum alloy construction is built to last, resisting cutting, drilling, and extreme weather. The anti-saw and anti-drill features add extra protection against theft, while the one-step locking system makes it easy to use.

Pros	Cons
Snug fit prevents theft and accidental detachment. Adjustable design fits more trailers, RVs, and boats. Solid aluminum alloy resists cutting, drilling, and rust. Anti-theft features protect against sawing, drilling, and picking. Easy one-step locking ensures quick and reliable security.	Heavy at 5.1 lbs, might be bulky for some users. Price could be higher than basic trailer locks. Aluminum may not match steel strength for extreme force.

Perfect For:

RV, boat, and camping owners need this lock for their trailers. It gives your vehicle extra safety that is easy to use.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Trailer theft is a real worry. A good anti-theft trailer hitch lock gives you peace of mind. We’ve tested the best locks to keep your trailer safe.

Factors to Consider When Buying:
– Size Compatibility: Make sure the lock fits your trailer’s coupler size. Most locks work with 1-7/8″, 2″, and 2-5/16″ couplers.
– Material: Look for heavy-duty steel or aluminum locks. They resist cutting, rust, and weather damage.
– Locking Mechanism: Choose locks with advanced mechanisms to prevent picking and prying.
– Visibility: Bright colors like red or yellow make locks easy to spot, deterring thieves.
– Ease of Use: Locks should be easy to install and remove, saving you time and effort.
– Weather Resistance: Ensure the lock is weatherproof to handle rain, snow, and sun.
– Warranty: Some brands offer lifetime replacement or warranties for added value.
– Keys Included: Check if the lock comes with spare keys for convenience.

With these factors in mind, you’ll find the perfect lock to protect your trailer. Stay safe and worry-free!