20 Best Master Lock 377ka [2024]

Are you looking for the best master lock 377ka? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling master lock 377ka.

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1 Master Lock Trailer Hitch Lock, Fits 1-7/8 in., 2 in., and Most 2-5/16 in. Trailer Couplers, Weather... Master Lock Trailer Hitch Lock, Fits 1-7/8 in., 2 in., and Most 2-5/16 in. Trailer Couplers,...
2 Master Lock - Fits 1-7/8' and 2' Couplers - (4) Keyed Alike Trailer Coupler Locks 377KA-4 Master Lock - Fits 1-7/8" and 2" Couplers - (4) Keyed Alike Trailer Coupler Locks 377KA-4
3 Master Lock 377ka-0313 Trailer Coupler Lock Master Lock 377ka-0313 Trailer Coupler Lock
4 Master Lock Fits 1-7/8' and 2' Couplers - (3) Keyed Alike Trailer Locks 377KA-3 … Master Lock Fits 1-7/8" and 2" Couplers - (3) Keyed Alike Trailer Locks 377KA-3 …
5 Master Lock 377DAT Trailer Hitch Lock Master Lock 377DAT Trailer Hitch Lock
6 Master Lock - Universal Size Fits 1-7/8', 2', and 2-5/16' Couplers - Trailer Locks #389DAT Master Lock - Universal Size Fits 1-7/8", 2", and 2-5/16" Couplers - Trailer Locks #389DAT
7 Master Lock Trailer Lock, Trailer Coupler & Receiver Lock Combo Pack, 3794DAT , Red Master Lock Trailer Lock, Trailer Coupler & Receiver Lock Combo Pack, 3794DAT , Red
8 Master Lock 379ATPY Universal Trailer Hitch Lock , Black Master Lock 379ATPY Universal Trailer Hitch Lock , Black
9 Master Lock 37D Shrouded Laminated Steel Pin Tumbler Padlock, Keyed Different, 1-9/16-Inch Wide... Master Lock 37D Shrouded Laminated Steel Pin Tumbler Padlock, Keyed Different, 1-9/16-Inch Wide...
10 Master Lock Combination Lock, Set Your Own Combination Lock, Indoor and Outdoor Padlock,... Master Lock Combination Lock, Set Your Own Combination Lock, Indoor and Outdoor Padlock,...
11 Stainless Steel Pin Tumbler Padlock, 304 Marine Series, Anti Rust Lock, Weatherproof Padlock for... Stainless Steel Pin Tumbler Padlock, 304 Marine Series, Anti Rust Lock, Weatherproof Padlock for...
12 Master Lock - 5 Trailer Locks Keyed Alike 5KA-37937-37 Master Lock - 5 Trailer Locks Keyed Alike 5KA-37937-37
13 Master Lock - 3 Trailer Locks Keyed Alike #3KA-377-37 Master Lock - 3 Trailer Locks Keyed Alike #3KA-377-37
14 Master Lock 3895DAT - Coupler Lock, Receiver Lock and Latch Lock - 3 Components Keyed Alike Master Lock 3895DAT - Coupler Lock, Receiver Lock and Latch Lock - 3 Components Keyed Alike
15 Lutron Caséta Deluxe Smart Dimmer Switch (2 Count) Kit with Caséta Smart Hub | Works with Alexa,... Lutron Caséta Deluxe Smart Dimmer Switch (2 Count) Kit with Caséta Smart Hub | Works with...
16 Master Lock 1479TAT Receiver Lock, 2 Pack Master Lock 1479TAT Receiver Lock, 2 Pack
17 Master Lock - (2 Keyed Alike Universal Trailer Coupler Locks 379KA-2 Master Lock - (2 Keyed Alike Universal Trailer Coupler Locks 379KA-2
18 Master Lock 389DAT 2 Pack Universal Trailer Coupler Lock, Red Master Lock 389DAT 2 Pack Universal Trailer Coupler Lock, Red
19 MASTERLOCK 377KA Key Alike Lock #377DAT MASTERLOCK 377KA Key Alike Lock #377DAT
20 Master Lock - 6 Trailer Locks Keyed Alike 6KA-37937-3 Master Lock - 6 Trailer Locks Keyed Alike 6KA-37937-3
Bestseller No. 1
Master Lock Trailer Hitch Lock, Fits 1-7/8 in., 2 in., and Most 2-5/16 in. Trailer Couplers, Weather...
  • Trailer hitch lock fits 1-7/8 in. (48mm), 2 in. (51mm) and most 2-5/16 in. (59mm) trailer couplers
  • Trailer lock is best used for vehicles, trailers, and RVs
  • Trailer coupler lock features advanced locking mechanism to resist picking and prying
  • Trailer hitch lock is constructed from zinc to resist rust and corrosion
  • One trailer coupler lock, two keys
Bestseller No. 2
Master Lock - Fits 1-7/8" and 2" Couplers - (4) Keyed Alike Trailer Coupler Locks 377KA-4
  • This listing is for (4) four 377KA coupler locks keyed alike and 8 keys.
  • ATTENTION: If you order two 4-packs they will NOT necessarily be keyed the same. To ensure you get two 4-packs keyed alike, you must order the 8-pack.
  • SPECIFICATIONS: Fits 1-7/8", 2" and some 2-5/16" trailer couplers. For 2-5/16" couplers we recommend a different lock, search Master Lock 379KA.
  • DURABLE DESIGN: Aluminum diecast finish resists rust and corrosion. Advanced locking mechanism resists picking and prying. Easy to install and remove.
  • Limited Lifetime Warranty provides peace of mind from a brand you can trust.
Bestseller No. 3
Master Lock 377ka-0313 Trailer Coupler Lock
  • Fits 1-7/8" (48mm), 2" (51mm) and most 2-5/16" (59mm) trailer couplers
  • Advance locking mechanism resists picking and prying
  • Easy to install and remove
  • Resists rust and corrosion
  • Keyed Alike.
Bestseller No. 4
Master Lock Fits 1-7/8" and 2" Couplers - (3) Keyed Alike Trailer Locks 377KA-3 …
  • This listing is for (3) three 377KA coupler locks keyed alike and 6 keys.
  • 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.
  • SPECIFICATIONS: Fits 1-7/8", 2" and some 2-5/16" trailer couplers. For 2-5/16" couplers we recommend a different lock, search Master Lock 379KA.
  • DURABLE DESIGN: Chrome finish resists rust and corrosion. Advanced locking mechanism resists picking and prying. Easy to install and remove.
  • Limited Lifetime Warranty provides peace of mind from a brand you can trust.
Bestseller No. 5
Master Lock 377DAT Trailer Hitch Lock
  • Trailer hitch lock fits 1-7/8 in. (48mm), 2 in. (51mm) and most 2-5/16 in. (59mm) trailer couplers
  • Trailer lock is best used for vehicles, trailers, and RVs
  • Trailer coupler lock features advanced locking mechanism to resist picking and prying
  • Trailer hitch lock is constructed from zinc to resist rust and corrosion
  • Includes one trailer coupler lock, two keys
SaleBestseller No. 6
Master Lock - Universal Size Fits 1-7/8", 2", and 2-5/16" Couplers - Trailer Locks #389DAT
  • Universal coupler lock fits virtually all 1-7/8", 2", and 2-5/16" trailer couplers.
  • This lock protects unattended trailers and guards against tow-away theft. The bright red finish discourages thiefs from messing with your trailer.
  • Resists rust and corrosion. Simple installation and removal.
  • Advanced locking mechanism resists picking and prying.
SaleBestseller No. 7
Master Lock Trailer Lock, Trailer Coupler & Receiver Lock Combo Pack, 3794DAT , Red
  • LOCK APPLICATION: Best used for vehicles, trailers, and RV hitch locks
  • EASE OF USE: Receiver lock features convenient Push to Lock locking mechanism: push lock body firmly onto the pin and remove key
  • DURABLE DESIGN: Weather Tough seal and watertight cap provide protection from moisture and dirt
  • SPECIFICATIONS: Stainless steel trailer coupler lock adjusts from 9/16 in. to 2-3/4 in.; Fits 1-7/8 in., 2 in. and most 2-5/16 in. couplers
  • INCLUDES: One trailer coupler lock, one receiver lock, one trailer coupler latch lock; two keys (both keys open all three locks)
Bestseller No. 8
Master Lock 379ATPY Universal Trailer Hitch Lock , Black
  • Trailer hitch lock fits 1-7/8 in. (48mm), 2 in. (51mm) and most 2-5/16 in. (59mm) trailer couplers
  • Trailer lock is best used for vehicles, trailers, and RVs
  • Trailer coupler lock features advanced locking mechanism to resist picking and prying
  • Trailer hitch lock is constructed from zinc to resist rust and corrosion
  • Includes one trailer coupler lock, two keys
Bestseller No. 9
Master Lock 37D Shrouded Laminated Steel Pin Tumbler Padlock, Keyed Different, 1-9/16-Inch Wide...
  • Armored hardened steel shackle defies cutting
  • 4 pin tumbler cylinder helps prevent picking
  • Ideal for securing trailers - shackle fits openings 1/2" in diameter or larger
  • Features padlock style coupler and is ideal for securing trailers, cables and chains
  • Armored hardened steel shackle defies cutting
Bestseller No. 10
Master Lock Combination Lock, Set Your Own Combination Lock, Indoor and Outdoor Padlock,...
  • Indoor and outdoor padlock is best used as a school locker lock, gym lock, and gate lock, providing protection and security from theft
  • Set your own four-digit combination lock for easy combination recall; Combination change tool included
  • Combo lock is constructed with a solid body for strength and weatherability, hardened steel shackle for cut resistance
  • 2 inch (51 millimeter) wide lock body; 5/16 inch (8 millimeter) diameter shackle with 1 inch (25 millimeter) length, 1 inch (25 millimeter) width
  • Shackle is preset to open on 0-0-0-0. Some instructions may incorrectly state shackle opens on l-o-c-k. See user manual in technical specifications...
Bestseller No. 11
Stainless Steel Pin Tumbler Padlock, 304 Marine Series, Anti Rust Lock, Weatherproof Padlock for...
  • 1-1/2 inch heavy duty stainless steel Pin tumbler padlock with brass keys. Stainless steel lock body, stainless steel Long shackle,which is anti-rust,...
  • Suitable for Places Have Bad Condition of Weather. The best place to use it on houseboat, ship, boat,etc.
  • Rust-proof & strong durability : Stainless Steel was used to make the shackle and body to maximize rust-proofing abilities and durability.
  • A stainless steel shackle is applied to provide strong resistance against cutting. Corrosion-resistant materials, such as brass, stainless steel, were...
  • Includes: 1 padlock & 3 keys
Bestseller No. 12
Master Lock - 5 Trailer Locks Keyed Alike 5KA-37937-37
  • In Stock with a delivery time of 1 to 5 business days. Keyed Alike - One key opens all five locks.
  • Each lock comes with two keys, for a total of ten keys.
  • Total Trailer Security. Simple installation and removal.
  • Coupler lock fits 1-7/8", 2" & 2-5/16" couplers.
  • 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:...
Bestseller No. 13
Master Lock - 3 Trailer Locks Keyed Alike #3KA-377-37
  • In Stock with a delivery time of 2 to 4 days via USPS Priority Mail. Complete trailer security. These locks will fit virtually all trailers that have...
  • KEYED ALIKE - One key opens all three locks. We can key multiple sets to the same key number. If multiples are ordered we will automatically key them...
  • COUPLER LOCK FEATURES: Advanced locking mechanism resists picking and prying. Simple installation and removal. Aluminum diecast finish resists rust...
  • RECEIVER LOCK 1480KA FEATURES: Protects from theft when securing the ball mount to the receiver. The lock features the NEW Push To Lock Security. Push...
  • LATCH PADLOCK FEATURES: For proper fitment please check/read the SEE MORE PRODUCT DETAILS below in product description. Look for LATCH PADLOCK...
SaleBestseller No. 14
Master Lock 3895DAT - Coupler Lock, Receiver Lock and Latch Lock - 3 Components Keyed Alike
  • 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.
  • The Limited Lifetime Warranty provides peace of mind from a brand you can trust.
SaleBestseller No. 15
Lutron Caséta Deluxe Smart Dimmer Switch (2 Count) Kit with Caséta Smart Hub | Works with Alexa,...
  • PEACE OF MIND: Set lights to automatically adjust with changing seasons so your family always comes back to a well-lit home; you can also enable the...
  • MOST CONNECTED: Caséta connects with more leading smart home devices – including Alexa, Apple HomeKit, the Google Assistant, Serena shades and...
  • CONTROL YOUR WAY: Caséta puts the smarts in the switch so you can control your lights a variety of ways – via the free Lutron app, your voice, or...
  • RELIABLY SMART: The Caséta Smart Hub doesn’t use Wi-Fi, so you get super-fast, ultra-reliable smart lighting that works right, without slowing your...
  • SET IT AND FORGET IT: Always keep your smart light functionality. Even when the Wi-Fi goes down, there’s no need to reset your schedules and scenes...
SaleBestseller No. 16
Master Lock 1479TAT Receiver Lock, 2 Pack
  • Fits 5/8in (16mm) receivers
  • Usable length of receiver pin is 2-3/4 in. (70mm)
  • Push to Lock locking mechanism - push lock body onto pin firmly and remove key
  • Weather Tough seal and water tight cap protects lock from moisture and dirt
  • Class III/IV; 10, 000 lb. Load Rating.4-pin cylinder for added pick resistance.Same key opens both locks; K1 Key Blank
SaleBestseller No. 17
Master Lock - (2 Keyed Alike Universal Trailer Coupler Locks 379KA-2
  • In Stock with a delivery time of 1 to 5 days. This is a set of 2 Keyed Alike trailer coupler/tongue locks and is ideal when needing multiple locks...
  • These locks protects unattended trailers and guards against tow-away theft. The universal trailer coupler lock fits 1-7/8in (48mm), 2in (51mm) and...
  • This simple design is difficult to defeat because when it's locked on the trailer the lock rests on top of the coupler (see image) thus thwarting...
  • Rekeyable cylinder for keyed alike convenience with an advanced locking mechanism that resists picking and prying. Each lock weighs 2.4 lbs. and is...
  • Made with Reinforced Zinc Die-Cast resists rust and corrosion. Few materials provide the strength and toughness of zinc alloys. Impact resistance is...
SaleBestseller No. 18
Master Lock 389DAT 2 Pack Universal Trailer Coupler Lock, Red
  • Universal coupler lock fits virtually all 1-7/8", 2", and 2-5/16" trailer couplers.
  • These 2 locks are keyed differently, they do not have the same key number.
  • This lock protects unattended trailers and guards against tow-away theft. The bright red finish discourages thiefs from messing with your trailer.
  • Resists rust and corrosion. Simple installation and removal.
  • Advanced locking mechanism resists picking and prying.
Bestseller No. 19
MASTERLOCK 377KA Key Alike Lock #377DAT
  • 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
  • Advance Locking Mechanism Resists Picking And Prying
Bestseller No. 20
Master Lock - 6 Trailer Locks Keyed Alike 6KA-37937-3
  • Total trailer security Keyed Alike - One key opens all six locks.Keyed Alike - One key opens all six locks.
  • Each lock comes with two keys, for a total of twelve keys.
  • Latch Lock - The #3 padlock will work on 2-5/16 couplers and the smaller 1-7/8 and 2".
  • Total Trailer Security. Simple installation and removal.
  • Coupler lock fits 1-7/8", 2" & 2-5/16" couplers.

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After hours of searching and using all the models on the market, we have found the best master lock 377ka for 2023. See our ranking below!

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  • Is it worth buying an master lock 377ka?
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  1. Brand Value: Every brand of master lock 377ka has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an master lock 377ka?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your master lock 377ka.
  5. Customer Ratings: Number ratings grade master lock 377ka objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their master lock 377ka.
  7. Product Quality: You don’t always get what you pay for with an master lock 377ka, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an master lock 377ka is should be an indication of how long it will work out for you.

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FAQ:

Q: What is the Master Lock 389dat?

A: The Master Lock 389DAT is a universal coupler lock that aims to safeguard your trailer from possible thieves. The bright red finish seems to dishearten any thief who wishes to mess with my trailer.

Q: What are the best key locks for a black trailer?

A: The CZC AUTO Black Trailer Hitch Coupler Lock is the smallest option on our list but still offers great security for your trailer. This compact, black-finished key lock creates a barrier between your trailer and thieves by ensuring that the pinhole behind the receiver stays closed, which won’t allow anyone to release the trailer from the hitch.

Q: What is the best Universal Coupler trailer lock?

A: For the last 100 years, this company has led the innovation curve in security devices, and their Universal Coupler Trailer Lock makes the top of our list for that very reason. Designed to fit a wide variety of receiver hitches, Master Lock Universal Size Coupler Trailer Lock ensures that no one can attach their own hitch to your trailer.

Q: How to choose the best locks for your home?

A: To protect your locking mechanism, look for a rubber lid to cover the keyhole. The rubber lid will protect the lock from dust, rain, and other elements that might damage the inner parts. You’ll want the lock to be as robust as possible so that it can endure any hard beating. The best locks are made of hard steel and aluminum.