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20 Best Trailer Lock Set (2022 Updated)

A trailer lock set is a combination of a padlock and a hasp designed to secure a trailer door or gate. The padlock fits through a hole in the hasp and is then locked, preventing the hasp from being opened.

This type of lock is often used on trailers that carry valuable cargo, as it provides an extra level of security.

20 Best Trailer Lock Set

Product Image Product Name Features Price

Curt – Right-Angle Hitch & Coupler Lock Set – 23505

  • Right-Angle Design w/Swivel Head For Easier Access
  • Locks Keyed Alike For Convenient One-Key Operation
  • Protected By A Durable Chrome-Plated Finish

Trimax Receiver/Coupler Lock Set TM33

  • Combines Models T3 & TC3 Premium Coupler Locks.
  • Keyed-Alike Hardened Steel Lock Set 5/8"e; Diameter.
  • Coupler Lock (4) Matching Keys Choice of stainless steel or triple chrome-plated hardened steel.

Reese Towpower Receiver and Coupler Lock 7030600

  • Triple ball mount
  • Included components: Unit, Instruction Guide
  • Patented ball bearing locking system eliminates weak point

Blue Ox BX88177 4 Lock Kit

  • Includes two ½” locks and two 5/8” locks
  • Prevents accidental unhitching
  • Features a sturdy construction for strength and durability

Blue Ox Bx8858 Receiver Lock

  • Package Dimensions: 3.302 H x 23.114 L x 7.111 W (centimetres)
  • Country of Origin : United States
  • Package Weight: 0.6 pounds

Travel Trailer Lock White 43610-09

  • Approximately 3.47″ x 4.28″
  • Includes two FIC keys and component parts for installation
  • Keyed deadbolt

Master Lock 3895DAT Receiver/Coupler Lock, Key

  • For more DETAILED information, please click “See More Product Details”.
  • Complete trailer security system KEYED ALIKE.
  • (1) coupler lock, (1) receiver lock & (1) latch lock all keyed alike; 1 key opens all 3 locks.

Master Lock 377KA Trailer Coupler Lock,

  • Advance locking mechanism resists picking and prying
  • Resists rust and corrosion
  • Best used for automotive, towing, trailers, vans, moving trucks, and marine recreation

Reese 7092330 Dogbone Receiver Lock Towpower

  • For use on receiver openings 2-1/2″ square
  • Barrel design
  • Rubber cap keeps tumblers clean

Master Lock Coupler Lock 377DAT

  • For 48 and 51 mm couplers
  • Advance locking mechanism resists picking and prying
  • Easy to install and remove

Master Lock 605DAT Trailer Coupler Padlock

  • Advance locking mechanism resists picking and prying
  • Easy to install and remove
  • Resists rust and corrosion

Fastway Max Security Universal Coupler Lock

  • Made From The Highest Quality Corrosion Resistant Materials
  • Anti-Drill Lock Design
  • Unique Design Uses A Hardened Steel Reversible “U” Shaped Shackle That Allows The Lock To Fit Almost Any Trailer Coupler Style

Trimax Umax 100 Universal RV Trailer Lock, Silver

  • Crafted from the highest quality material
  • Perfect for outdoor and even indoor use
  • Made in China

Reese Towpower Trailer Hitch Coupler Lock, Brass

  • Designed to provide safety to the trailer from theft
  • Made from brass
  • Corrosion resistant

Curt 23021 Hitch Lock

  • Extended length for use with 2-1/2 In. receiver tube openings
  • Chrome finish
  • Water-tight dust cap

Lock-Adjustable Coupler 580410

  • Easy Access model with side key entry
  • Lock housing rotates 360 degrees
  • Includes 2 keys

Trimax MAG200 5/8" Resettable Combination Receiver Lock

  • The 5/8″ pin is 3.25 inches in usable span and designed to fit all Class III, IV and V receiver hitches
  • Free protective lock head cover

Reese Towpower 7088300 Heavy Duty Coupler Lock

  • Universal, fits all couplers
  • Secures trailer when not being towed
  • Ratchet design with eleven locking positions. Bright theft deterrent silver

Trimax TR200 Deluxe Receiver Lock

  • The 5/8″ pin fits all Class III, IV and V receiver hitches
  • O-ring keeps water, grime and dirt out of locking mechanism to ensure years of use
Curt – Right-Angle Hitch & Coupler Lock Set – 23505
  • Right-Angle Design w/Swivel Head For Easier Access
  • Locks Keyed Alike For Convenient One-Key Operation
  • Protected By A Durable Chrome-Plated Finish
Trimax Receiver/Coupler Lock Set TM33
  • Combines Models T3 & TC3 Premium Coupler Locks.
  • Keyed-Alike Hardened Steel Lock Set 5/8"e; Diameter.
  • Coupler Lock (4) Matching Keys Choice of stainless steel or triple chrome-plated hardened steel.
Reese Towpower Receiver and Coupler Lock 7030600
  • Triple ball mount
  • Included components: Unit, Instruction Guide
  • Patented ball bearing locking system eliminates weak point
Blue Ox BX88177 4 Lock Kit
  • Includes two ½” locks and two 5/8” locks
  • Prevents accidental unhitching
  • Features a sturdy construction for strength and durability
Blue Ox Bx8858 Receiver Lock
  • Package Dimensions: 3.302 H x 23.114 L x 7.111 W (centimetres)
  • Country of Origin : United States
  • Package Weight: 0.6 pounds
Travel Trailer Lock White 43610-09
  • Approximately 3.47″ x 4.28″
  • Includes two FIC keys and component parts for installation
  • Keyed deadbolt
Master Lock 3895DAT Receiver/Coupler Lock, Key
  • For more DETAILED information, please click “See More Product Details”.
  • Complete trailer security system KEYED ALIKE.
  • (1) coupler lock, (1) receiver lock & (1) latch lock all keyed alike; 1 key opens all 3 locks.
Master Lock 377KA Trailer Coupler Lock,
  • Advance locking mechanism resists picking and prying
  • Resists rust and corrosion
  • Best used for automotive, towing, trailers, vans, moving trucks, and marine recreation
Reese 7092330 Dogbone Receiver Lock Towpower
  • For use on receiver openings 2-1/2″ square
  • Barrel design
  • Rubber cap keeps tumblers clean
Master Lock Coupler Lock 377DAT
  • For 48 and 51 mm couplers
  • Advance locking mechanism resists picking and prying
  • Easy to install and remove
Master Lock 605DAT Trailer Coupler Padlock
  • Advance locking mechanism resists picking and prying
  • Easy to install and remove
  • Resists rust and corrosion
Fastway Max Security Universal Coupler Lock
  • Made From The Highest Quality Corrosion Resistant Materials
  • Anti-Drill Lock Design
  • Unique Design Uses A Hardened Steel Reversible “U” Shaped Shackle That Allows The Lock To Fit Almost Any Trailer Coupler Style
Trimax Umax 100 Universal RV Trailer Lock, Silver
  • Crafted from the highest quality material
  • Perfect for outdoor and even indoor use
  • Made in China
Reese Towpower Trailer Hitch Coupler Lock, Brass
  • Designed to provide safety to the trailer from theft
  • Made from brass
  • Corrosion resistant
Curt 23021 Hitch Lock
  • Extended length for use with 2-1/2 In. receiver tube openings
  • Chrome finish
  • Water-tight dust cap
Lock-Adjustable Coupler 580410
  • Easy Access model with side key entry
  • Lock housing rotates 360 degrees
  • Includes 2 keys
Trimax MAG200 5/8" Resettable Combination Receiver Lock
  • The 5/8″ pin is 3.25 inches in usable span and designed to fit all Class III, IV and V receiver hitches
  • Free protective lock head cover
Reese Towpower 7088300 Heavy Duty Coupler Lock
  • Universal, fits all couplers
  • Secures trailer when not being towed
  • Ratchet design with eleven locking positions. Bright theft deterrent silver
Trimax TR200 Deluxe Receiver Lock
  • The 5/8″ pin fits all Class III, IV and V receiver hitches
  • O-ring keeps water, grime and dirt out of locking mechanism to ensure years of use

1. Curt – Right-Angle Hitch & Coupler Lock Set – 23505

Curt - Right-Angle Hitch & Coupler Lock Set - 23505

  • Right-Angle Design w/Swivel Head For Easier Access
  • Locks Keyed Alike For Convenient One-Key Operation
  • Protected By A Durable Chrome-Plated Finish
  • Easy-To-Operate 1/4-Turn Lock Activation
  • Watertight Dust Caps Prevent Internal Corrosion

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
Home Depot

Product Details

Specifications

Details
Length 9 in
Height 1.5 in
Width 3 in
Weight 1.2 lb

Reviews From Real Customers

Pat
Edd
Tonyota

2. Trimax Receiver/Coupler Lock Set TM33

Trimax Receiver/Coupler Lock Set TM33

  • Combines Models T3 & TC3 Premium Coupler Locks.
  • Keyed-Alike Hardened Steel Lock Set 5/8"e; Diameter.
  • Coupler Lock (4) Matching Keys Choice of stainless steel or triple chrome-plated hardened steel.

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
Home Depot

Product Details

Reviews From Real Customers

Toyr
Steven S
Ranger185vs

3. Reese Towpower Receiver and Coupler Lock 7030600

Reese Towpower Receiver and Coupler Lock 7030600

  • Triple ball mount
  • Included components: Unit, Instruction Guide
  • Patented ball bearing locking system eliminates weak point

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
Ace Hardware

Product Details

Specifications

Details
Item has MSDS (SDS)? N
Package Weight 1.55
Lock Type Keyed Entry
Pin Count 0
Color / Finish Chrome

Reviews From Real Customers

Grumpy Old Chuck
Mindthegap96
BikerDragginTom

4. Blue Ox BX88177 4 Lock Kit

Blue Ox BX88177 4 Lock Kit

  • Includes two ½” locks and two 5/8” locks
  • Prevents accidental unhitching
  • Features a sturdy construction for strength and durability
  • Comes with additional receiver lock for use with all receiver mounted accessories

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
NAPA Auto Parts

Product Details

Specifications

Details
Length 13 in
Height 7 in
Width 3 in
Weight 6 lb

Reviews From Real Customers

R.f.A.
G.S.
L.C.T.

5. Blue Ox Bx8858 Receiver Lock

Blue Ox Bx8858 Receiver Lock

  • Package Dimensions: 3.302 H x 23.114 L x 7.111 W (centimetres)
  • Country of Origin : United States
  • Package Weight: 0.6 pounds

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
PPL Motor Homes

Product Details

Reviews From Real Customers

W.1.
D.K.
S.

6. Travel Trailer Lock White 43610-09

Travel Trailer Lock White 43610-09

  • Approximately 3.47″ x 4.28″
  • Includes two FIC keys and component parts for installation
  • Keyed deadbolt

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
United RV Center
Adventure RV.NET

Product Details

Specifications

Details
Package Dimensions 6.3 x 4.8 x 3.4 inches
Is Discontinued By Manufacturer No

Reviews From Real Customers

L.M.
E.J.
genralmerchandiseconsumer

7. Master Lock 3895DAT Receiver/Coupler Lock, Key

Master Lock 3895DAT Receiver/Coupler Lock, Key

  • For more DETAILED information, please click “See More Product Details”.
  • Complete trailer security system KEYED ALIKE.
  • (1) coupler lock, (1) receiver lock & (1) latch lock all keyed alike; 1 key opens all 3 locks.
  • This lock set can NOT be keyed alike with other locks nor can 2 of these lock sets be keyed alike.

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
Walmart
Ideal True Value Home Center

Product Details

Specifications

Details
Product Weight 4 lb
Fits Receivers 1/2 and 5/8 in

Reviews From Real Customers

jacar2864
Little nero
betbac7

8. Master Lock 377KA Trailer Coupler Lock,

Master Lock 377KA Trailer Coupler Lock,

  • Advance locking mechanism resists picking and prying
  • Resists rust and corrosion
  • Best used for automotive, towing, trailers, vans, moving trucks, and marine recreation
  • Easy to install and remove

Check Latest Price

Sold By Price
Amazon.com
eBay
Voomi Supply
Global Industrial

Product Details

Specifications

Details
Product Dimensions 5.6 x 4.3 x 2.8 inches
Country of Origin China
Is Discontinued By Manufacturer No

Reviews From Real Customers

Randy
Lizana
jbazzano

9. Reese 7092330 Dogbone Receiver Lock Towpower

Reese 7092330 Dogbone Receiver Lock Towpower

  • For use on receiver openings 2-1/2″ square
  • Barrel design
  • Rubber cap keeps tumblers clean
  • Includes two keys for convenience
  • Features knurled grips for comfort

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
Lowe’s

Product Details

Specifications

Details
Number in Package 1 pk
Class Class V
Each Weight 0.920 LB
Hazardous Material No
Velocity N

Reviews From Real Customers

DaveDaChemist
Natrlyst
larryjepson

10. Master Lock Coupler Lock 377DAT

Master Lock Coupler Lock 377DAT

  • For 48 and 51 mm couplers
  • Advance locking mechanism resists picking and prying
  • Easy to install and remove
  • Resists rust and corrosion
  • Hardened steel to provide maximum protection

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
West Marine

Product Details

Specifications

Details
Category Locks

Reviews From Real Customers

bassinboy104
D.F.

11. Master Lock 605DAT Trailer Coupler Padlock

Master Lock 605DAT Trailer Coupler Padlock

  • Advance locking mechanism resists picking and prying
  • Easy to install and remove
  • Resists rust and corrosion

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
McGuckin Hardware

Product Details

Specifications

Details
Acme Tools Brand Name MASTER LOCK
Acme Tools Part Number 605DAT
Assembled Weight (lbs) 0.5
Country of Origin China
Lock Type Keyed Locks

Reviews From Real Customers

speaksdock2013
gazelle_mom
whistlerski

12. Fastway Max Security Universal Coupler Lock

Fastway Max Security Universal Coupler Lock

  • Made From The Highest Quality Corrosion Resistant Materials
  • Anti-Drill Lock Design
  • Unique Design Uses A Hardened Steel Reversible “U” Shaped Shackle That Allows The Lock To Fit Almost Any Trailer Coupler Style
  • Provides The Maximum Security

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
Camping World

Product Details

Specifications

Details
Length 9.25 in
Height 3.28 in
Width 9.25 in
Weight 3 lb

Reviews From Real Customers

ronhenke
r.
N.W.

13. Trimax Umax 100 Universal RV Trailer Lock, Silver

Trimax Umax 100 Universal RV Trailer Lock, Silver

  • Crafted from the highest quality material
  • Perfect for outdoor and even indoor use
  • Made in China
  • One size fits all (from 1-7/8″, 2″, to 2-5/16″, all coupler types)

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
Northern Tool

Product Details

Specifications

Details
Diameter (in.) 9/16
Length 8.8 in
Product Weight 4.8 lb
Fits Receivers 1 7/8, 2 and 2 5/16 in

Reviews From Real Customers

galacticalignment12222012
Bobmoss75
Johndal21

14. Reese Towpower Trailer Hitch Coupler Lock, Brass

Reese Towpower Trailer Hitch Coupler Lock, Brass

  • Designed to provide safety to the trailer from theft
  • Made from brass
  • Corrosion resistant

Check Latest Price

Sold By Price
Amazon.com
Walmart
Ace Hardware
Valu Home Centers

Product Details

Specifications

Details
Assembled Depth (in) 1.19 in
Assembled Height (in) 5.5 in
Assembled Width (in) 1.88 in
Assembled Weight (lbs) 0.45 lbs
Item has MSDS (SDS)? N

Reviews From Real Customers

Kale
Kyle

15. Curt 23021 Hitch Lock

Curt 23021 Hitch Lock

  • Extended length for use with 2-1/2 In. receiver tube openings
  • Chrome finish
  • Water-tight dust cap
  • Two keys included
  • 1/4-turn lock activation

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
Home Depot

Product Details

Specifications

Details
Item has MSDS (SDS)? N
Item is Shipped at this Packaging Level Y
Information Effective Date 10/10/12
Packaging Depth 4 IN
Packaging Height 8 IN

Reviews From Real Customers

LYLE
koolraul
TERENCE

16. Lock-Adjustable Coupler 580410

Lock-Adjustable Coupler 580410

  • Easy Access model with side key entry
  • Lock housing rotates 360 degrees
  • Includes 2 keys
  • Sliding dust cap

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
Defender Industries

Product Details

Specifications

Details
Weight 0.82 lb

Reviews From Real Customers

E.
N.
A.F.

17. Trimax MAG200 5/8″ Resettable Combination Receiver Lock

Trimax MAG200 5/8

  • The 5/8″ pin is 3.25 inches in usable span and designed to fit all Class III, IV and V receiver hitches
  • Free protective lock head cover
  • Easy to read numbers
  • Durable non-corrosive lock mechanism
  • No key to lose or forget

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
Theisen’s

Product Details

Reviews From Real Customers

BoyWonder
Dwight C
budzius-221

18. Haul-Master 5/8 in. Trailer Coupler Pin Lock with 2 Keys

Haul-Master 5/8 in. Trailer Coupler Pin Lock with 2 Keys

Check Latest Price

Sold By Price
Amazon
eBay
Harbor Freight Tools

Product Details

Reviews From Real Customers

Nick
Sharon
Brandon

19. Reese Towpower 7088300 Heavy Duty Coupler Lock

Reese Towpower 7088300 Heavy Duty Coupler Lock

  • Universal, fits all couplers
  • Secures trailer when not being towed
  • Ratchet design with eleven locking positions. Bright theft deterrent silver
  • Fits 1-7/8, 2 and 2-5/16 inch trailers
  • Two theft proof square keys are included

Check Latest Price

Sold By Price
Amazon
eBay
AutoZone
Acme Tools

Product Details

Specifications

Details
Product Type Coupler Lock
Number in Package 1 pk
Color/Finish Silver
Brand Name Reese Towpower
Gross Towing Weight 3.92 lb. cap.

Reviews From Real Customers

acajienne
Corrie
MNSteve

20. Trimax TR200 Deluxe Receiver Lock

Trimax TR200 Deluxe Receiver Lock

  • The 5/8″ pin fits all Class III, IV and V receiver hitches
  • O-ring keeps water, grime and dirt out of locking mechanism to ensure years of use
  • Protective rubber cap protects keyhole from water, grime and dirt
  • Standard bent pin style with single barbell head lock

Check Latest Price

Sold By Price
eBay
Walmart
Rural King
Young Farts RV Parts

Product Details

Reviews From Real Customers

Z.
William K
w.

Conclusion

Based on the information in the trailer lock set video, it appears that this product is designed to provide a high level of security for trailers. The set includes a pair of locking bars that fit over the trailer’s coupler, and a padlock that secures the bars in place.

The bars are made of hardened steel, and the padlock is designed to resist attack from bolt cutters. The set also includes a wheel lock that can be used to secure the trailer’s wheels to the trailer hitch.

Overall, this appears to be a well-designed product that would provide a high level of security for trailers.

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