Best Lock For Trailer Door for 2023 (TOP 15)

Sometimes it might be quite difficult to find the best lock for trailer door. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this lock for trailer door buying guide.

Our 15 Recommendations:

Best Lock For Trailer Door Reviews:

Bestseller No. 1
Master Lock Pro Series - (3) Hidden Shackle Padlocks Keyed Alike 6271KA-3
  • Three (3) high security ProSeries Padlocks designed for Commercial/Industrial applications. Locks are keyed alike w/ 6 total keys. 2-7/8" (73mm) wide reinforced zinc die-cast lock body (see more product details below). Ideal for transportation, vending and many other applications.
  • FITMENT: Please see more product details below to help ensure these locks will work.
  • ATTENTION: If you order two 3-packs they will NOT necessarily be keyed the same. To ensure you get two 3-packs keyed alike, you must order the 6-pack.
  • See image for reference - Shackle Dimensions - A: 3/8in (9mm) B: 19/32in (15mm) C: 1-23/32in (44mm). Lock body conceals the shackle! Fully shielded 3/8 (9mm) diameter hardened boron alloy shackle offers impossible to cut and pry resistance features.
  • High security, re-keyable 6-pin cylinder with spool pins is virtually impossible to pick. Lifetime guarantee. This lock is also available with the BumpStop Technology. Search 6271NKA in Amazon's search window.
Bestseller No. 2
Trimax THP2XL Keyed Alike Trailer Door Lock, (Pack of 2)
  • Protects against bolt cutters, no exposed shackle to cut or saw
  • Enlarged opening covers and secures ALL trailer hasps
  • Solid steel and thicker body with 3/8" diameter internal shackle
  • 2-7/8" Diameter
  • Two pack of THPXL are keyed alike
SaleBestseller No. 3
Trimax THP3XL Hockey-Puck Shackle Trailer Door Lock-3 Pack
  • TRIMAX Corporation is the world’s leading lock manufacturer providing customers’ high quality products through innovative design
  • Easy to use
Bestseller No. 4
LATCH.IT Black RV Door Latch | RV Door Locks for Travel Trailers | Travel Trailer Door Latch | 100% Metal Camper Door Lock 4 Camper Keys | Trailer Door Lock Only Fits 2.75"x3.75" Door Lock Hole
  • ✔️ WILL IT FIT MY APPLICATION? Our RV Door Lock fits RVs and trailers with A LOCK HOLE OPENING of 3.75" tall x 2.75" wide x 1.5" thick. CHECK DIMENSIONS and LATCH STYLE with your trailer BEFORE PURCHASING! Our locks are designed with your security in mind! DOES NOT FIT CLASS A OR CLASS C.
  • ✔️ WHILE OTHER RV LOCKS ARE flimsy and made of plastic, our RV Door Lock is 100% METAL. The IP67 waterproof technology allows our camper door latch to handle the harsh outdoors. The all metal finish and sealing gasket allows it to be rust proof and dirt proof. Allow us to secure your valuables and HELP YOU TRAVEL WORRY FREE WITH LOVED ONES.
  • ✔️ EACH KIT ARRIVES READY TO INSTALL AND INCLUDES 1x RV Door Handle, FOUR Mechanical Keys, Gift-Ready Premium Packaging, 4x Different Length Screws, Mounting Hardware & Owner's Manual/Install Guide. INSTALL IT WITHIN 10-MINUTES! All 100% backed by our LIFETIME warranty and 24/7 Online Support. MAKE SURE DIMENSIONS FIT YOUR APPLICATION.
  • ✔️ LEAVE YOUR TRAILER OR CAMPER WITH PEACE OF MIND. Our camper lock use premium locking technology to allow you to leave your RV without worrying about your valuables. Each Lock Set comes with UNIQUE KEYS. Enter your trailer knowing all your precious items will be there. Our camper door locks include 4 mechanical keys, NO MORE HAVING TO PAY EXTRA TO BUY SPARE KEYS!
Bestseller No. 5
RV Travel Trailer Entry Door Lock Polar Black Paddle Deadbolt
  • Replaces most popular locks by Fastec, Global as well as other brands
  • These RV door locks have a built in deadbolt. This provides that extra sense of security. RV door locks for travel trailers come in Black. This model is designed for travel trailers, yet works well with cargo haulers, horse trailers or custom utility trailers
  • Fits Hole cutouts from 2 1/2" x 3 1/2" to 3" x 4" and door thicknesses from 1 1/4" to 1 1/2".
  • Includes; Both inside & outside latches with 4 double edge keys one for Handle and one for Deadbolt
  • Fits most RV Doors (Most common lock) please check measurements - Complete with hardware, strike plates & screws
SaleBestseller No. 6
ORCISH RV Travel Trailer Entry Door Lock,RV Door Latch Replacement with Deadbolt, Zinc Alloy RV Door Lock Kit for Camper, Travel, Horse Trailer, Cargo Hauler
  • PREMIUM & DURABLE:Well-constructed with die-cast zinc alloy, this RV door locks for travel trailers is 100% METAL-- high hardness corrosion-resisting, oxidation treatment, wear resistance. smooth surface,for long term outdoor use.
  • Higher Level of Security:with built -in deadbolt and function of back locking it is much safer than the normal can open from inside or outside , mute design and smooth switch, not card lock,each lock set comes with UNIQUE KEYS.
  • Easy installation:Include Owner's Manual, 10 screws (3 different length), and 2 mounting plate., both inside and outside latches, easy to install.
  • FITS MOST TRAILERS - Fits Hole cutouts from 2 1/2" x 3 1/2" to 3" x 4" and door thicknesses from 1 1/4" to 1 1/2". It can be widely applied in travel trailers, yet works well with cargo haulers, horse trailers or custom utility trailers, etc., practical for protecting the contents in cars.
  • Professional after-sales team: All kits are provided with lifetime technical support and one-year limited warranty.If there is any problem during the purchase period, please contact us at any time, and we will provide the most professional and timely service.
Bestseller No. 7
Buyers Products B2159C Cam Action Door Lock Kit
  • Sold as kit only
  • For use with 3/4" pipe
  • More Than Just Parts: From snow and ice equipment to toolboxes, hydraulics, towing, truck and trailer hardware to our innovative lighting products-it's amazing what Buyers Products can do for your truck
  • We Do Things The Right Way: We design products like we're building them for ourselves, because we are; Our teams are staffed with engineers and experts who know how to make a product exceptional
  • Durable and Dependable: Founded in 1946, Buyers Products has become a leader in the truck equipment industry though our commitment to customer care, innovation, and value across our range of products
Bestseller No. 8
Master Lock Hidden Shackle (2) Keyed Alike Padlocks 6271NKA-2 w/ BumpStop
  • This listing is for 2 keyed alike locks - 4 keys included. The hardened diecast zinc body is strong, durable and resists corrosion. Pro Series Padlocks are designed for Commercial/Industrial applications. Ideal for transportation, vending, gates, and industrial uses.
  • These Locks FEATURE BumpStop Advanced Cylinder Technology (For explanation see more product details below).
  • HIGH SECURITY 6-pin cyclinder for maximum pick resistance. Removable cylinder for replacement or repinning.
  • BOLT CUTTER TOUGH - fully shielded hardened boron alloy shackle offers impossible to cut and pry resistance features.
  • DIMENSIONS (see image) - A) 3/8 (10mm), B) 19/32 (15mm), C) 1-23/32 (44mm) Width 2-7/8 (73mm)
Bestseller No. 9
Mardili Lock Hidden Shackle Trailer Puck Padlocks Rekeyable Keyed Alike, Soild Steel, Pack of 3
  • (!Reminder: For your time concern , PLEASE confirm the size before purchase)High Security - This rekeyable 6-pin Cyliner with Spool Pins is virtually impossible to pick and with soild steel shackle, it can resist bolt cut and physical attacks!
  • Heavy Duty, Weather Resistant - Made of #45 Steel with the chrome surface, this lock is impossible to cut or pry, the chrome surface is rust and temperature resistant which can withstand any weather,no spring to rust or jam.(if the key needs to expose in very wet area, this may not suitable; Stainless steel material is more suitable but they are more expensive)
  • Great Value - Genuine OEM Made, high quality with good price.
  • Attention: Each lock comes with two keys and they are keyed Alike. You will get three locks with six keyed alike keys.
  • What you get: 3 X Reinforced Steel Padlock; 30 days Hassle - Free return and replacement;
Bestseller No. 10
Master Lock - (3) Keyed Alike Trailer & Multi Purpose Padlocks, 37KA-3
  • This listing is for THREE (3) padlocks keyed alike (same key unlocks all) and six keys. The lock is also available with Bump Stop Technology. Search 37NKA in our storefront.
  • APPLICATION: These padlocks are ideal for all outdoor applications when needing multiple locks that utilize ONLY one key. The #37 latch lock works well on 1-7/8 and 2 inch couplers and on virtually all standard hasp applications. These locks have a removable shackle sleeve. Sleeve off - Secures coupler latches. Sleeve on - Works best with hasps. KEY RETAINING - ensures that padlock is not left unlocked.
  • PADLOCK FEATURES: 1-9/16"(21mm) wide x 3"(76mm) high. Armored Shackle Guard blocks bolt cutters. Revolving, case-hardened steel shackle sleeve resists cutting and sawing. Removable shackle sleeve. Sleeve off - Secures coupler latches to accommodate openings 9/32" (7mm) in diameter. Sleeve on - Works best with hasps, fits openings 1/2" (13mm) in diameter or larger. Precision pin tumbler mechanism resists picking.
  • IMPORTANT NOTE: If using this style lock on a trailers coupler latch please be aware it is NOT recommended for all 2-5/16 couplers. It will fit some 2-5/16 couplers, the exception being 2-5/16 couplers that have the latch partially recessed from the top surface of the coupler, or latches that are wider than 7/8.
  • ATTENTION: If you order two 3-packs they will NOT necessarily be keyed the same. To ensure you get two 3-packs keyed alike, you must order the 6-pack.
SaleBestseller No. 11
Kohree RV Travel Trailer Entry Door Lock with Paddle Deadbolt, Polar Black Camper Door Latch Handle with Keys RV Door Lock Replacement --Zinc Alloy Security Kit for Camper Horse Trailer Cargo Hauler
  • 🔒ORIGINALITY PROCESS: The Kohree RV lock is well-constructed with multiple casting process and aluminum alloy material. Featuring the high hardness, each side is carefully designed to be safe and durable. Oxidation treatment, wear resistance. Smooth surface, hand good sense of easy open. The classic square silhouette shows the ingenious imagination of the designer from Kohree.
  • 🔒PREMIUM & DURABLE: Thickened solid base for stable installation. Selected quality aluminum alloy and IPX3 waterproof material, providing years of dependability and durability for long-term outdoor use. Additionally, the keys are made of ALL metal and it is not easy to fracture.
  • 🔒LONGER SCREWS: Comes with 4 EXTRA, 3MM LONGER screws(12 total), not worry about screws too short or any unfit any more. Includes everything for installation: door latches, 4 keys, 12 screws and 2 plates, easy operation.
  • 🔒VERSATILE DOOR LOCK: Fits most RV doors (hole cutout is 2.67'' x 3.6'' and door thickness from 1.25" to 1.5"). It can be widely applied in travel trailers, campers, trucks, horse trailers, cargo haulers, etc., practical for protecting the contents in cars.
  • 🔒SAFE & PROTECTIVE: With built-in deadbolt and function of back locking, it’s much safer than normal lock. Inside and outside double open, mute design and smooth switch, not card lock, better protecting your goods and commercial material from thefts.
SaleBestseller No. 12
YOMILINK Upgraded RV Door Lock, Trailer Door Lock with Paddle Deadbolt, Black Camper Door Latch with 4 Keys, Zinc Alloy Metal RV Door Latch Replacement Kit for Camper Horse Trailer Cargo Hauler
  • 【FITS MOST TRAILERS】Replaces most popular locks with an opening of 3.75" x 2.75" x 1.5".
  • 【DURABLE】Selected quality Zinc alloy material is more durable than Aluminum alloy, corrosion-resisting, oxidation treatment, wear resistance, for long-term outdoor use. UV resistant surface keeps the lock from fading.
  • 【PROTECTIVE】Interior and exterior assembly, with built-in deadbolt better protecting your goods from thefts, travel worry free.
  • 【EASY TO USE】Include: instructions, 4 keys, 12 screws with different length to met your different needs, both inside and outside latches, easy to install.
  • 【UPGRADE 】Multiple casting process allows it to stand harsh weather, upgraded assembly process makes it more durable. Upgraded quality for ten years of company.
Bestseller No. 13
Tough Grade 36" Cam Bar Lock Assembly Side Door Enclosed Trailer
  • 36" length
  • 3 1/4" distance between hinge holes
  • Hasp Included
  • No mounting hardware included
Bestseller No. 14
Blaylock American Metal 0229.3024 Metal DL-80 Coupler Lock
  • Cargo, live stock & specialty trailers
  • Latch & bolt lock system
  • Overall Dimensions 3" long x 6" wide x 9" tall
  • 1" inch handle relief depth within cutout area
Bestseller No. 15
Naissian RV Camper Door Lock Latch Deadbolt Lock Entry Side Door Lock with Handle for Travel Trailer 5th Wheel Universal Security RV Compartment Side Door Latch, Black, Pack of 1 Lock+ 6 Keys Alike
  • 【Get More KEY Aliked, 6 KEY for one lock and 8 KEY for two locks】KEY Made of COPPER, NO Frustration of Failure. Compared to zinc alloy, copper will not wear, deform, break easily. Rv locks key can live up to daily use of locking & unlocking. Any Time You Need, we can provide more keys, extra and replacement key service for locks ordered from Naissian.
  • 【HAVE MORE Locks KEY ALIKE】Key alike means one key is able to open all the locks in the same rv door lock set. If you buy a complete set of 1/2/3 Camper trailer door locks in one order, it will come with 6/8/12pcs keys alike (same keycode) in the package. Make you to have enough piece replacement keys,do not worry about losing your keys. No need to carry numbers of keys chain outside with you. If you have special needs to key more locks alike, we have customized service.
  • 【Get Your Unique KEY, Upgraded Security Protection】Traditional rv locks have only 200 keycode variations, we will have 3000+ keycode different arrangement. Our lock keys were made by CNC Laser Engraving,its teeth pattern on the key is randomly generated. The more permutations, the less repetition of keys number,so that someone else will Not HAVE THE SAME KEY with you. Make your RV lock not easy to crack and open by same keycode keys, increasing security, protect your RV house.
  • 【Upgraded Deadbolt Lock for RV, Never Locking People Inside】We have studied many horrible accidents of deadbolt door lock failure locking people inside or outside and they cannot get out but have to spend more money to break the door or window. It is all because of the mechanism fail to secure the deadbolt and it goes loose and spin inside but not turn the cylinder. We have identified the bug and solved it, Buy with confidence.
  • 【Universal LOCKS FOR CAMPER DOOR, Please Check door size before purchasing】Naissian RV DOOR Lock can be fit with your camper/trailer entry door hole with Cut out Width 2.95'' ,Cut out Height 3.65'' , and the door board thickness between 1.3-1.5''.The distance between the door frame edge and the hole's left edge is 1.22inch. Please refer to pictures for detail. This RV Camper Lock widely applied in your travel trailer/RV Compartment/Camper/Truck

Last update on 2023-01-12 / Affiliate links / Images from Amazon Product Advertising API

How to find the best lock for trailer door?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best lock for trailer door for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good lock for trailer door recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the lock for trailer door need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for lock for trailer door to find what you’re looking for:


In some cases, the brand of lock for trailer door is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.


The features in any given lock for trailer door are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.


Customer reviews about lock for trailer door are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.


Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare lock for trailer door quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.


Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.


The quest to find the best lock for trailer door can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.