Our Best Picks:
15 Best Lock For Enclosed Trailer Reviews:
SaleBestseller 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 
Proven Industries Model 400XL Puck-Lock Set, Made in The USA, Pack of 3, (Black)
- HEAVY-DUTY PUCK LOCKS: It’s important to do everything you can to protect your belongings and your trailer from being stolen. Our strong and pick-resistant puck locks help keep your rear and side enclosed trailer doors secure.
- TOUGH PUCK LOCKS: These padlock cylinders are constructed from aircraft-grade 6061 solid aluminum, so they’re resistant to picking and corrosion. Each lock features a hidden and fully shielded shackle that protects against bolt cutters and prying tools.
- UNIQUE KEY DESIGN: Our puck locks have a special key design that prevents lockpicking and deters would-be thieves from making a copy of your lock keys. Each lock comes with 2 keys, and all keys are keyed alike for your convenience.
- LOCK DIMENSIONS & SIZES: Each puck lock has a large opening on the back to accommodate for swivel hasps on an enclosed trailer door. The shackle opening measures 1 3/4" L x 1 3/4" W x 7/8" H and has a depth of 1 1/4".
- PROVEN INDUSTRIES: We are dedicated to providing our customers with the most effective trailer locks on the market. We carefully research and manufacture our locking systems from conception to fabrication in the USA.
Bestseller No. 3 
Master Lock Hidden Shackle (3) Keyed Alike Padlocks 6271NKA-3 w/ BumpStop Technology
- This listing is for 3 keyed alike locks - 6 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. 4 
Proven Industries Model 400XL Puck-Lock Set, Made in The USA, Pack of 2, (Black)
- HEAVY-DUTY PUCK LOCKS: It’s important to do everything you can to protect your belongings and your trailer from being stolen. Our strong and pick-resistant puck locks help keep your rear and side enclosed trailer doors secure.
- TOUGH PUCK LOCKS: These padlock cylinders are constructed from aircraft-grade 6061 solid aluminum, so they’re resistant to picking and corrosion. Each lock features a hidden and fully-shielded shackle that protects against bolt cutters and prying tools.
- UNIQUE KEY DESIGN: Our puck locks have a special key design that prevents anyone from picking them or making a copy of your lock keys. Each lock comes with 2 keys, and all keys are keyed alike for your convenience.
- LOCK DIMENSIONS & SIZES: Each puck lock has a large opening on the back to accommodate for swivel hasps on an enclosed trailer door. The shackle opening measures 1 3/4" L x 1 3/4" W x 7/8" H and has a depth of 1 1/4".
- PROVEN INDUSTRIES: We are dedicated to providing our customers with the most effective trailer locks on the market. We carefully research and manufacture our locking systems from conception to fabrication in the USA.
Bestseller No. 5 
Master Lock - 6 Trailer Locks Keyed Alike #6KA-3796230-37
- Total trailer security Keyed Alike - One key opens all six locks. Each lock comes with two keys, for a total of twelve keys.
- Multiple 6KA trailer lock packages CAN be keyed alike. If you ordered a quanity of 2, 3 etc we would automatically key them all the same. See RECEIVER LOCK options in the description below.
- Latch lock doesn't fit some 2-5/16" couplers. See description below for latch lock (#37) applications. For 2-5/16 couplers the better lock set is: Master Lock - 6 Trailer Locks Keyed Alike #6KA-3796230-3.
- Three (3) high security 6230KA padlocks featuring a 5-pin cylinder and boron alloy hardened shackle. Please see images for padlock dimensions.
- Coupler lock fits 1-7/8", 2", & 2-5/16" couplers. See the description below for the majority of coupler manufacturers this lock will fit.
SaleBestseller No. 6 
Trimax THP3XL Hockey-Puck Shackle Trailer Door Lock-3 Pack, Silver
- TRIMAX Corporation is the world’s leading lock manufacturer providing customers’ high quality products through innovative design
- Easy to use
Bestseller No. 7 
Master Lock - 5 Trailer Locks Keyed Alike #5KA-37940-37
- Total Trailer Security Keyed Alike - One key opens all five locks. Each lock comes with two keys, for a total of ten keys.
- Multiple 5KA trailer lock packages CAN be keyed alike. If you ordered a quanity of 2, 3 etc we would automatically key them all the same.
- Round padlocks 2-3/4" (70mm) wide laminated stainless steel body resists corrosion.
- Latch lock doesn't fit some 2-5/16" couplers. See description below for latch lock (model 37KABLK) applications. For 2-5/16 couplers the better lock set is: Master Lock - 5 Trailer Locks Keyed Alike 5KA-37940-3
- Coupler lock fits 1-7/8", 2" & 2-5/16" couplers. See the description below for the majority of coupler manufacturers this lock will fit.
Bestseller No. 8 
Blaylock DL-80 Cargo Trailer Door Lock - 3-Pack of Keyed Alike Locks
- Heavy-duty aircraft aluminum – will not rust.
- Convenient push-button lock - Two tubular keys with each lock.
- Hardened plated steel pin.
- Perimeter gasket to eliminate scratching and vibration noise.
- Covers the keeper hole used with regular padlocks. Covers the bolt head at the top and bottom for added security.
Bestseller No. 9 
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
SaleBestseller 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.
Bestseller No. 11 
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
Bestseller No. 12 
50 Pack 89-104 Inches Long Steel Load Lock Bar for Cargo Tie-Down ONLY in Enclosed Trucks and Semi Trailers | Minimum 7-1/2 feet
- HEAVY DUTY AND ADJUSTABLE - This adjustable load lock bars extend from 89.75"-104.5" and are intended for use in semi trailers, box trucks and enclosed van trailers. These are too large to use in pickup trucks.
- DURABLE and VERSATILE - The steel construction of the bar provides an exceptional amount of durability and strength. These Cargo Bar Tie Downs are the most versatile cargo stabilizing bar there are.
- SECURE YOUR CARGO - Keeps your cargo from shifting without the use of tie-downs. 2" x 4" suctioning rubber foot pad on each end, clings to trailer walls
- EASY TO MOUNT - Mount these load bars on the wall of your box truck, Semi, shipping container to contain cargo. Rapid ratcheting cargo bar offers a quick release ratcheting mechanism on the handle.
- CONFIDENCE - DC Cargo "American Company, American Service - 100% Lifetime Guarantee on All products - The Brand You Can Trust"
Bestseller No. 13 
Proven Industries Model 400XL Puck-Lock Set, Made in The USA, Pack of 2, (Blue)
- HEAVY-DUTY PUCK LOCKS: It’s important to do everything you can to protect your belongings and your trailer from being stolen. Our strong and pick-resistant puck locks help keep your rear and side enclosed trailer doors secure.
- TOUGH PUCK LOCKS: These padlock cylinders are constructed from aircraft-grade 6061 solid aluminum, so they’re resistant to picking and corrosion. Each lock features a hidden and fully-shielded shackle that protects against bolt cutters and prying tools.
- UNIQUE KEY DESIGN: Our puck locks have a special key design that prevents anyone from picking them or making a copy of your lock keys. Each lock comes with 2 keys, and all keys are keyed alike for your convenience.
- LOCK DIMENSIONS & SIZES: Each puck lock has a large opening on the back to accommodate for swivel hasps on an enclosed trailer door. The shackle opening measures 1 3/4" L x 1 3/4" W x 7/8" H and has a depth of 1 1/4".
- PROVEN INDUSTRIES: We are dedicated to providing our customers with the most effective trailer locks on the market. We carefully research and manufacture our locking systems from conception to fabrication in the USA.
Bestseller No. 14 
Cargo Trailer Door hasp Bar Lock Handle Keeper Padlock Race Enclosed car Hauler
- Trailer hasp lock mechanism for use with standard bar locks trailer door lock Hasp
- Trailer hasp latch measurements: 1-1/4"WIDE x 5-5/8", holes are 5/16" diameter and 4-3/4" on center
- Trailer hasp latch theft resist Used on many trailers including: enclosed cargo, race, car, motorcycle, utility, sled, atv, THIS IS THE EXACT HASP USED ON ALL HAULIN AND U.S. CARGO BRAND TRAILERS
- Simply lift up the hinged side and lower the cam bar lock into place or lift it out of the groove to open the lock and door.
Bestseller No. 15 
RecPro Trailer Cam-Action Hasp Lock Mechanism | Enclosed Trailer Door Latch | Made in USA (2)
- Simply lift up the hinged side and lower the cam bar lock into place or lift it out of the groove to open the lock and door.
- Replacement for cam-action lockable door latch kits.
- This 2 piece assembly allows you to latch the cam bar lock into place, keeping your things safe and secure. If your current hasp has broken or has seen better days, you’ve found just the replacement you need.
- Made in USA
Last update on 2023-06-07 / Affiliate links / Images from Amazon Product Advertising API