10 Best 5th Wheel Locks [2025]

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Finding the best 5th wheel locks can be a daunting task, especially with the myriad of options available that may not suit your specific needs. To streamline this process, we meticulously shortlisted 10 top-rated products based on factors such as security features, ease of use, and customer reviews. Our curated list not only saves you time but also alleviates the hassle of sifting through countless choices, ensuring you make an informed decision for your 5th wheel security.

Top 10 5th Wheel Locks In The Market

5th Wheel Locks Review

SaleBestseller No. 1
BOYISEN 5th Wheel King Pin Lock Solid Steel Anti Theft Fifth Wheel Hitch Lock...
  • More Convenient with Handle, Compared with other kingpin lock, BOYISEN trailer kingpin Lock add handle and turn cylinder outward instead of downward, more convenient while lock or unlock for 5th wheel
  • Keyed Unique, no worry about another BOYISEN kingpin lock owner will have the same key. BOYISEN anti theft trailer lock using blossom lock, not easy to break; Come with 3 keys for your lock, so you can keep one as backup
  • Heavy Duty Construction: This 5th wheel hitch lock is made of solid steel instead of casting steel, strong enough for weather resistant, hard to break. The heavy duty steel will add more difficulties for steal drills, and lasts for years
  • High Visibility: This Kingpin lock is designed with a warning tag, so you could notice if it is still stay in place, and remind you of removing it when you want to hitching
  • Universal Fit: ideal for trucking companies, RV dealers or fleet drivers, used for RVs, Boats and Campers Semi-Truck
Bestseller No. 2
CURT 23255 5th Wheel Trailer Lock for 2-Inch King Pin
  • DEPENDABLE SECURITY. To protect your 5th wheel trailer from theft while it is left unattended, this 5th wheel lock is made with a high-strength steel pin and an aluminum bracket
  • EASY TO OPERATE. This 5th wheel lock easily installs on the king pin of your 5th wheel trailer, preventing it from being coupled to a 5th wheel hitch
  • VERSATILE. With a 2-inch diameter opening, this 5th wheel trailer lock fits virtually any 2-inch king pin
  • WATERTIGHT. The internal components of this 5th wheel base rail lock can easily be protected from the elements with the included watertight dust cap
  • TWO KEYS INCLUDED. For your convenience, two keys are included with this 5th wheel lock. You can keep the spare key in a discrete location for emergencies or give it to a friend for helpful access
SaleBestseller No. 3
Trimax - TFW80HD - 5th Wheel King Pin Lock -Heavy Duty Anti-Theft Trailer Lock,...
  • RUGGED WEATHERPROOF EPOXY POWDER COAT AND LIMITED LIFETIME WARRANTY: Provides superior rust and corrosion resistance, ensuring long-lasting durability and long-term protection
  • FULL COLLAR DESIGN: Prevents grease transfer to hands while adding an extra layer of security
  • EASY PUSH BUTTON LOCK DESIGN: Simple locking mechanism allows for quick and hassle-free use
  • ULTRA TOUGH STEEL: Built with heavy-duty materials to withstand tampering and harsh environments
  • EASY TO INSTALL: Quick setup process makes it convenient for securing unattended trailers
Bestseller No. 4
BYERN AUTO 5th Wheel King Pin Lock, Heavy Duty King Pin Lock with Anti-Theft...
  • EFFECTIVE SECURITY: The kingpin lock deterring thieves from connecting to your fifth wheel king pin, effectively avoid unauthorized movement. When the lock is engaged, its heavy-duty precision mechanism offers perfect protection for your trailer
  • HIGH QUALITY MATERIALS: The pin lock 5th wheel is made of heavy-duty steel copper with a welded construction finish. The body is weather and rust resistant, making it strong and durable
  • WARNING TAG: This fifth wheel lock comes with a warning tag that will not only remind you to remove it before hitching but once seen by potential thieves they will almost always move on to an easier target
  • UNIVERSAL FIT: This king pin lock is ideal for trucking companies or RV dealers for semi-trailers, fifth wheels, yachts, container trailers, and campers
  • EASY TO USE: Our 5th wheel hitch lock is very easy to use, insert the key and turn it 180 degrees to lock, and we provide 2 keys for your lock so you can keep one as a spare
SaleBestseller No. 6
METOWARE 5th Wheel King Pin Lock with Warning Tag for 5th Wheel, RVs, Semi...
  • EYE-CATCHING WARNING LABELS:This 5th wheel King Pin lock comes with a 12-inch chain and bright red warning label tag attachment that will remind you to remove it before hitching. Each warning label has a warning message in English to keep you safe.
  • HIGH STRENGTH MATERIAL:This king pin lock is made of high-strength iron for durability, weather resistance and resistance to damage. This lock is coated with a double layer of electrophoretic paint to prevent corrosion and rust for a more reliable performance, it is perfect for protecting your trailer on the road or hauling.
  • UNIQUE DESIGN:The Kingpin lock is easy to lock and unlock, takes seconds to install and comes with two keys so you don't have to worry about losing them.
  • PRECISION ANTI-THEFT DESIGN:This fifth wheel king pin lock can well enclose the main pin lock to effectively prevent drills, saws and other damaging tools. The heavy-duty precision mechanism protects your trailer perfectly so you don't have to worry about it.
  • UNIVERSALITY:The 5th wheel king pin lock is the best choice for RVs, boats, and camping semi-trailers, the petite size can be applied to a wide range of vehicles, adding convenience to your journey.
Bestseller No. 7
RVMATE 5th Wheel Lock, Heavy Duty Steel King Pin Lock with Anti-Theft Warning...
  • [Keep Your 5th Wheel Secure] : King pin lock can prevent thieves from connecting your fifth wheel kingpin and avoid unauthorized movement. The durable construction, eye-catching yellow lock and tag serve as a warning and deterrent against theft to keep your 5th wheel secure.
  • [Dimension]: The dimension of the trailer king pin lock is 83 mm in height, with an internal diameter of 74mm, a universal fit for 50 mm diameter trailer pins. Thus, the lock can be widely applied in semi trailers, 5th wheels, trucks, boats, containers and many other scenarios.
  • [High Quality Material]: Trailer king pin is made of heavy duty steel copper, processed with welding construction. The surface adopts electrostatic treatment, featuring the body with weather resistance and anti-rust, making it sturdy enough and hard to break even by experienced thieves. Therefore effectively increase the safety factor and reduce the probability of theft when installed onto trailer.
  • [Warning Tag]: The main tone of bright yellow designed as a sign of strong visible warning. The chain with fluorescent warning tag hanging down passes on message to someone to try and steal : Caution! King pin lock installed! If a would-be thief sees the lock, they'll likely move on to an easier target.
  • [Easy to Use]: The trailer hitch lock is rather easy to use. You just need to engage the lock onto the trailer hitch, then insert the key into lock cylinder and rotate 180 degrees, the king pin lock firmly installed. (Attention: Every lock has its own keys. Different locks don't share the keys.)
Bestseller No. 8
Trimax - TFW60-5th Wheel King Pin Lock-Heavy Duty Anti-Theft Trailer Lock,...
  • RUGGED WEATHERPROOF EPOXY POWDER COAT AND LIMITED LIFETIME WARRANTY: Protects against rust, corrosion, and environmental damage for lasting performance while providing manufacturers guarantee of quality
  • FULL COLLAR DESIGN: Prevents grease transfer while adding structural reinforcement for enhanced security
  • EASY PUSH BUTTON LOCK DESIGN: Simple and intuitive locking system for quick and secure trailer protection
  • ULTRA TOUGH ALUMINUM ALLOY: Strong yet lightweight material provides durability without added weight
  • EASY TO INSTALL: Designed for a fast and hassle-free installation process
Bestseller No. 9
5th Wheel King Pin Lock, Heavy Duty Steel Trailer Pin Lock for RVs, Semi...
  • 【High Visible Warning Tag】: This king pin lock is equipped with a bright color warning tag. Comes with a 12-inch chain and bright red text that not only alerts you to the condition of your RV, but also effectively warns of thieves.
  • 【Heavy Duty Pin Lock】: Made of high-strength steel, this latch lock is durable, weather resistant and not easily damaged. The coating on the surface of this lock prevents corrosion and rust, making it perfect for protecting your trailer while traveling or hauling.
  • 【Anti-theft Design】: This trailer pin lock is consist of heavy duty steel, preventing drills, saws and other damaging tools. And also, precise lock cylinder design, even experienced thieves can't do anything about it.
  • 【Easy to Use】: The pin lock is easy to lock and unlock, installs in seconds, and comes with two keys. The 5th wheel lock is also the best choice for RVs, Semi trailers and trucks.
  • 【QUALITY SERVICE】: If you have any question, please contact us. We can give you a satisfactory solution.
Bestseller No. 10
DC Cargo Mall 5th Wheel King Pin Lock Solid Steel - Weather Resistant,...
  • 5TH WHEEL KINGPIN LOCK - Secure your semi trailer with our reinforced heavy duty No. 45 steel cuff 5th wheel hitch lock with side key precision copper key lock cylinder that can only be opened with your key (2 included).
  • ANTI THEFT DESIGN - Popular in travel trailer accessories, we've encircled the entire kingpin lock in a solid steel cage that is rust and weather resistant and extremely durable to drills, saws and other break in tools. The precision locking mechanism is extremely hard to defeat to give you ultimate peace of mind.
  • TRUSTED BY THE PROS - Professional semi truck fleets and RV sellers trust the DC Cargo Mall 5th wheel king pin locks to secure their fleets, vehicles, trailers and expensive equipment. Now small business owners and personal RV and truck owners can take advantage of our professional grade security locking system.
  • HIGH VISIBILITY WARNING TAG - Each 5th wheel lock has a 12" chain secured bright red warning label tag attachment that will remind you to remove it before hitching. Park your truck, trailer or RV in a high visibility area and remain calm in the knowledge your 5th wheel king pin lock is secure from theft.
  • EASY TO USE - It's extremely difficult for anyone without the key to remove your 5th wheel king pin lock, but installing it only takes a few seconds. Simply attach it to your 5th wheel dock, use the included key to lock it and your equipment is set until you're ready to remove it.

Our Review Process

To ensure you get reliable product recommendations, we follow a detailed review methodology that includes:

  • Market Research: Scanning best-selling and trending products in this category.
  • User Feedback: Reviewing customer reviews, star ratings, and complaints.
  • Hands-On Testing: Trying select products ourselves when feasible.
  • Feature Comparison: Evaluating specs, durability, pricing, and safety.
  • Expert Opinions: Consulting with niche experts or credible reviewers.

We independently select the top 10 options based on value, quality, and usability. To learn more, visit our detailed review process.

Key Considerations Before Buying a 5th Wheel Lock

When it comes to securing your 5th wheel trailer, investing in a high-quality lock is essential. However, with various options available on the market, it’s crucial to consider several factors before making a purchase. Here are the key considerations to keep in mind.

1. Type of Lock

There are different types of locks available for 5th wheel trailers, including coupler locks, wheel locks, and hitch pin locks. Understanding the specific type you need is vital. Coupler locks are designed to fit over the trailer’s coupler, while wheel locks secure the wheel to prevent movement. Hitch pin locks are used to secure the hitch to the truck. Choose the type that best meets your security needs.

2. Material and Durability

The material of the lock significantly impacts its durability and resistance to tampering. Look for locks made from high-grade steel or other robust materials that can withstand harsh weather conditions and potential break-in attempts. A rust-resistant finish is also a plus for longevity.

3. Compatibility

Not all locks are compatible with every 5th wheel model. Before purchasing, verify that the lock you choose is compatible with your specific trailer make and model. Check the lock’s specifications or consult with the manufacturer to ensure a proper fit.

4. Size and Weight

The size and weight of the lock are important factors to consider, especially if you plan to travel frequently. A bulky lock may be difficult to handle or store, while a lightweight option may compromise security. Strike a balance between portability and security by selecting a lock size that is both manageable and effective.

5. Ease of Use

Consider how easy the lock is to install and remove. A complicated locking mechanism can be cumbersome, especially when you are in a hurry. Look for user-friendly designs that allow for quick attachment and removal without sacrificing security.

6. Security Features

Examine the security features of the lock, such as the type of locking mechanism, pick resistance, and additional security measures like alarms or smart technology. A more sophisticated locking system may provide better protection against theft.

7. Brand Reputation and Reviews

Research the brand and read customer reviews to gauge the reliability and effectiveness of the lock. Trusted brands with positive feedback are often a safer choice. Look for products that have been tested and recommended by other users in the RV community.

8. Price

While it may be tempting to go for the cheapest option, remember that investing in a high-quality lock can save you from costly theft and damage in the long run. Set a budget and compare prices, but prioritize quality and durability over cost alone.

9. Warranty and Return Policy

Finally, check if the lock comes with a warranty or satisfaction guarantee. This can provide peace of mind regarding your purchase. A good warranty can also indicate the manufacturer’s confidence in the product’s quality.

FAQs

What is a 5th wheel lock?

A 5th wheel lock is a security device designed to secure the hitch of a 5th wheel trailer to a tow vehicle. It helps prevent unauthorized access and theft by locking the coupling mechanism, ensuring that the trailer cannot be easily detached from the tow vehicle.

Why do I need a 5th wheel lock?

A 5th wheel lock provides an added layer of security for your trailer, protecting it from theft and unauthorized use. Given the value of trailers and the equipment they carry, having a locking mechanism can deter potential thieves and give you peace of mind while traveling or when parked.

How do I install a 5th wheel lock?

Installation of a 5th wheel lock is typically straightforward. Most locks come with instructions specific to the model. Generally, you will need to place the lock over the hitch coupling, ensuring it fits securely, and then engage the locking mechanism. Always refer to the manufacturer’s instructions for the best practices and specific installation guidance.

Are all 5th wheel locks the same?

No, 5th wheel locks come in various designs and sizes, each suited for different types of hitches and trailers. It’s important to choose a lock that is compatible with your specific 5th wheel hitch to ensure effective security.

How secure are 5th wheel locks?

While no lock can guarantee 100% security, a quality 5th wheel lock can significantly reduce the risk of theft. Look for locks made from durable materials and those that have been tested for strength and resistance to tampering. Additionally, using multiple security devices can enhance overall protection.

Can I use a 5th wheel lock in all weather conditions?

Many 5th wheel locks are designed to withstand various weather conditions, including rain, snow, and extreme temperatures. However, it’s advisable to check the specifications of a particular lock to ensure it is weather-resistant and suitable for your region’s climate.

How do I choose the right 5th wheel lock?

When selecting a 5th wheel lock, consider factors such as the type of hitch on your trailer, the lock’s material and construction, ease of use, and additional features like visibility or alarm systems. Reading user reviews and checking for compatibility with your specific trailer model can also help you make an informed decision.

Can I use a 5th wheel lock with other types of trailers?

5th wheel locks are specifically designed for 5th wheel trailers and may not be suitable for other types of trailers, such as bumper pull or gooseneck trailers. It’s essential to use security devices that are designed for the specific type of hitch and trailer you have to ensure proper functionality and security.

Where can I buy a 5th wheel lock?

5th wheel locks can be purchased from a variety of retailers, including automotive supply stores, RV dealerships, and online marketplaces like Amazon. It’s a good idea to compare prices and read reviews to find the best option for your needs.

How often should I check my 5th wheel lock?

It’s recommended to check your 5th wheel lock regularly, especially before and after trips. Inspect it for any signs of wear or damage and ensure that it is functioning correctly. Keeping your lock in good condition will help maximize its security effectiveness.

The Bottom Line

In conclusion, securing your fifth wheel is essential for ensuring the safety and peace of mind during your travels. Our selection of the best fifth wheel locks has been carefully curated based on extensive research, user reviews, and expert opinions. Each product listed not only meets high standards of durability and reliability but also reflects a range of price points and features to suit different needs. By prioritizing factors such as material quality, ease of use, and security ratings, we aimed to provide you with a comprehensive guide that simplifies your decision-making process.

By following our curated list, you can confidently choose a fifth wheel lock that best fits your requirements, whether you’re a weekend adventurer or a full-time RVer. Investing in a quality lock from our top picks will not only protect your valuable assets but will also enhance your overall travel experience by minimizing the risks associated with theft. We hope this guide serves as a valuable resource, helping you secure your fifth wheel and enjoy your journeys with peace of mind.