Top 10 Trailer Coupler Lock – Kitchen & Dining Features

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1. Master Lock

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Master Lock 377DAT Trailer Hitch Lock

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Master Lock #ad - Trailer coupler lock features advanced locking mechanism to resist picking and prying. Trailer hitch lock fits 1-7/8 in. Nickel-plated, zinc die-cast body with a front access key-way for ease of accessibility. Trailer hitch lock is constructed from zinc to resist rust and corrosion. 59mm trailer couplers. Includes one trailer coupler lock, two keys. Trailer lock is best used for vehicles, trailers, and RVs. One of the unique features of this product is the ratcheting shaft which allows it to fit most 1-7/8 inch and 2 inch couplers. 51mm and most 2-5/16 in. 48mm, 2 in.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height2.68 Inches
Length6.56 Inches
Weight1 Pounds
Width7.5 Inches
Part Number470-377DAT
Model377DAT
WarrantyLIMITED WARRANTY

2. Master Lock

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3 Keyed Alike Trailer & Multi Purpose Padlocks, 37KA-3, Master Lock

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Master Lock #ad - Attention: if you order two 3-packs they will NOT necessarily be keyed the same. Sleeve off - Secures coupler latches. The lock is also available with Bump Stop Technology. 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.

Application: ideal for outdoor applications when needing many locks that utilize only one key. Note that non-rigid shackle has enough play to fit virtually all coupler latches less than 7/8 wide. The 37 lock works on 1-7/8 & 2 inch couplers & on virtually all standard hasp applications. 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.

Specifications: 3/4" 19mm armored Shackle Guard helps block bolt cutters. To ensure you get two 3-packs keyed alike, you must order the 6-pack. Search 37nKA in our storefront. Sleeve on - Works best with hasps. This listing is for three 3 padlocks keyed alike same key unlocks all and six keys. Shackle fits standard opening of 9/32" 7mm. These locks have a removable shackle sleeve.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Part Number37KA-3
Model37KA-3
WarrantyMASTER LOCK PRODUCT WARRANTY: Limited Lifetime Warranty. Master Lock Company LLC (Master Lock) grants the following warranty: If this product or any part of the product fails due to a defect in materials or workmanship at any time during the life of the product, Master Lock will, at its own discretion, repair or replace the product or part free of charge.  Simply contact Master Lock at www.masterlock.com or 1.800.464.2088 for instructions on obtaining repair or replacement.

3. Master Lock

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1-9/16-Inch Wide Body, Master Lock 37D Shrouded Laminated Steel Pin Tumbler Padlock, Keyed Different, Shackle Fits 9/32-Inch Or 1/2-Inch Diameter

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Master Lock #ad - 1. 562 inch laminated steel body for superior strength. Features padlock style coupler and is ideal for securing trailers, cables and chains. 4 pin tumbler cylinder helps prevent picking. Armored hardened steel shackle defies cutting. Shackle guard protects against bolt cutters and hacksaws. 4-pin tumbler cylinder prevents picking. Ideal for securing trailers - shackle fits openings 1/2" in diameter or larger. Armored hardened steel shackle defies cutting.
BrandMaster Lock #ad
ManufacturerMini-Mule #ad
Height3.15 Inches
Length0.94 Inches
Weight0.66 Pounds
Width1.57 Inches
Part Number37D
Model37D
WarrantyLimited Warranty

4. Master Lock

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Master Lock 605DAT Trailer Coupler Padlock, 4 Pack

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Master Lock #ad - Simple installation and removal. Opening measures exactly 3/4". This listing is for four 4 solid brass coupler latch locks. Matching colored keyhead for added convenience. Works on all 1-7/8" and 2" coupler latches, but not all 2-5/16". These locks are NOT keyed alike. Protected case-hardened steel shackle resists cutting and built-in anti-sawing pin for maximum protection. Solid brass case for corrosion resistance. Limited lifetime warranty.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height5.56 Inches
Length0.9 Inches
Width3.5 Inches
Part Number605DAT
Model605DAT
WarrantyMASTER LOCK PRODUCT WARRANTY: Limited Lifetime Warranty. Master Lock Company LLC (Master Lock) grants the following warranty: If this product or any part of the product fails due to a defect in materials or workmanship at any time during the life of the product, Master Lock will, at its own discretion, repair or replace the product or part free of charge. Simply contact Master Lock at www.masterlock.com or 1.800.464.2088 for instructions on obtaining repair or replacement.

5. PACLOCK

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Buy American Act Compliant, PACLOCK's TL88A Coupler Lock, One Lock Keyed to a Number U-Pick! w/ 2 Keys, Black Anodized Aluminum, High Security 6-Pin Cylinder, Hidden Shackle

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PACLOCK #ad - Every lock, you can use the same key to open your trailer, job box, gate, one key with paclock, and more! Order your locks to the same key code to have all of them keyed alike!. If you have or are interested in our UCS Series locks, please search for “UCS-88A”.

High security ultimate security with bolt cutter-proof hidden shackle design and pick/bump resistant 6-pin cylinder that allows for over 2, 800 key codes. Select your own key code and never worry about your neighbor having that same code! Solid 6061 aircraft-grade aluminum body also provides high strength and weatherability! Innovative design designed for trailer couplers! Please measure your application in advance to ensure the lock is the right fit.

Unbeatable customer support and exceptional lead times as locks are built and shipped within 24-48 hours! Sr compatible only compatible with standard rekeyable series locks. American manufacturer made in usa w/ global components by a family manufacturer hiring veterans & people with disabilities.
BrandPACLOCK #ad
ManufacturerPacific Lock Company #ad
Height3.25 Inches
Length2 Inches
Weight1 Pounds
Width1 Inches
Part NumberPLC10361090127040101030000
ModelPLC10361090127040101030000

6. Master Lock

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Fits 1-7/8" and 2" Couplers, Master Lock, 6 Keyed Alike Trailer Coupler Locks 377KA-6

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Master Lock #ad - Advanced locking mechanism resists picking and prying. Limited lifetime Warranty provides peace of mind from a brand you can trust. This listing is for 6 six 377KA coupler locks keyed alike and 12 keys. Durable design: aluminum diecast finish resists rust and corrosion. For 2-5/16" couplers we recommend a different lock, search Master Lock 379KA. Specifications: fits 1-7/8", 2" and some 2-5/16" trailer couplers. If you order two 6-packs or any multiple of this lock we will automatically key them all the same. Easy to install and remove.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Weight12 Pounds
Part Number377KAPKOF6
Model377KA
WarrantyMASTER LOCK PRODUCT WARRANTY: Limited Lifetime Warranty. Master Lock Company LLC (Master Lock) grants the following warranty: If this product or any part of the product fails due to a defect in materials or workmanship at any time during the life of the product, Master Lock will, at its own discretion, repair or replace the product or part free of charge. Simply contact Master Lock at www.masterlock.com or 1.800.464.2088 for instructions on obtaining repair or replacement.

7. PACLOCK

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Blue Anodized Aluminum, Less Cylinder, PACLOCK's UCS-79A Universal Trailer Coupler Lock, Buy American Act Compliant

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PACLOCK #ad - Select your own key code and never worry about your neighbor having that same code! As the only retail padlock with full stainless-steel pins, the UCS cylinder is a beast. Innovative design the ucs-79a fits on virtually every coupler and provides extreme versatility! Use it on your boat trailers, and more.

Then once you get to your destination, kayak trailers, use the UCS-79A to lock up something else! Every lock, you can use the same key to open your trailer, job box, one key with paclock, gate, and more! Order your locks to the same key code to have all of them keyed alike! Have an employee walk off with your key? No problem! UCS gives you the ability to immediately change keying or easily re-pin your padlocks in a matter of minutes.

High security the ucs high security pick/bump resistant 6-pin cylinder allows for more than 20, 000 unique key codes. If you have our standard Rekeyable Series locks, please search for “TL79A". American manufacturer made in usa w/ global components by a family manufacturer hiring veterans & people with disabilities. Unbeatable customer support and exceptional lead times as locks are built and shipped within 24-48 hours! Ucs compatible only compatible with ucs series locks.
BrandPACLOCK #ad
ManufacturerPacific Lock Company #ad
Weight1 Pounds
Part NumberPLC11451120268020101010000
ModelPLC11451120268020101010000

8. Master Lock

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4 Keyed Alike Multi Purpose Padlocks 37NKA-4 w/BumpStop Technology, Master Lock

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Master Lock #ad - Revolving, case-hardened steel shackle sleeve resists cutting and sawing. Search 37KA in our storefront. The lock is also available with out Bump Stop Technology. To fit coupler latch: remove the shackle sleeve. 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.

Specifications: 3/4" 19mm armored Shackle Guard helps block bolt cutters. This listing is for four 4 padlocks keyed alike same key unlocks all locks and eight keys. Sleeve off - Secures coupler latches. Shackle fits standard opening of 9/32" 7mm. These locks have a removable shackle sleeve. The #37 latch lock works well on 1-7/8 and 2 inch couplers and on virtually all standard hasp applications. 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.

Note that non-rigid shackle has enough play to fit virtually all coupler latches less than 7/8 wide. Application: these padlocks are ideal for all outdoor applications when needing multiple locks that utilize ONLY one key. These locks feature the BumpStop Advanced Cylinder Technology for explanation see more product details below. Sleeve on - Works best with hasps.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Part Number37NKA-4
Model37NKA-4

9. VTurboWay

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Coupler Safety Pin, Trailer Towing Bicycle Stroller Cargo Boat Stage Leg Hitch Hook Clip, 2 Pcs M6 Stainless Steel 316 Quick Lock Release Pin

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VTurboWay #ad - Easy to install and perfectly secure coupler latches, pintle hooks, jack legs and more. All parts are made of marine grade 316 stainless steel, Excellent seawater corrosion resistance and durable. Great for farm, garden, hitch, lawn, PTO and industrial applications. Made of high quality stainless steel 316, Strong corrosion resistance and dura-ble in saltwater circumstance, suitable for outdoor long-term use. Widely used for trailer, Bicycle Stroller Cargo, Boat, RV. Etc.
BrandVTurboWay #ad
ManufacturerVTurboWay #ad
Part NumberQuick_Lock_Release_M6_2Pack

10. INCREWAY

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INCREWAY 3/8" Trailer Coupler Pin, 4pcs Heavy Duty Shaft Locking Pin Pto Pin Carbon Steel Safety Coupler Pin in 2-3/4" Long, Square Wire Locking Pin for Farm Lawn Garden Trailers

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INCREWAY #ad - Easy installing and quick released fastener, providing you a convenient way to adjust or remove accessories on equipment. Wide application: great for table saw, boat, farming, lawn, truck, gardening, trailer or other locking applications.

3/8" diameter: this safety coupler pin is 2-3/4" 70mm long and 3/8" 10mm in diameter, usable length is 2-1/4"60mm, suitable for quick release applications in variety situations. Secure hold: these heavy duty safety pin are structurally strong, they are quality fasteners with strong load carrying capacity, fit for varieties of home and industrial locking applications and will hard to loosen during use.

Easy for using: just need to insert pins into the corresponding hook slot and close it. Rust & corrosion resistant: made of high-quality spring carbon steel material with zinc coating, very durable and sturdy, the 3/8" hitch pin is rust and corrosion resistant, fits for outdoor long-term use.
BrandINCREWAY #ad
ManufacturerINCREWAY #ad
Part NumberINC-HW06-101