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Item #:
159279
Master Lock Trailer Lock, Universal Trailer Coupler Lock, 379DAT, Silver, Standard
90% of respondents would recommend this to a friend
Item #:
159279
SAR 155
Price Details
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What Stands Out
Universal Fit
Designed to fit a wide range of trailer couplers, ensuring compatibility with various models, this lock provides versatile security solutions for all trailer types.
Weather Resistant
Constructed from durable materials with a corrosion-resistant finish, this lock withstands harsh weather conditions, delivering reliable performance and longevity for outdoor use.
Easy Installation
Featuring a simple, straightforward design, this lock allows for quick installation and removal, ensuring hassle-free use for trailer owners who value convenience and security.
Product Details
| Brand Name | Master Lock |
| Recommended Uses For Product | Securing trailers and RV hitch locks |
| Number of Pieces | 1 |
| Included Components | MASTERLOCK |
| Model Number | 379DAT |
| UPC | 182683142014 071649229213 071649116162 |
| Model Name | 379DAT |
| Global Trade Identification Number | 00071649116162 |
| Number of Items | 1 |
| Manufacturer | Master Lock |
| Number of Packs | 2 |
| Unit Count | 1 Count |
| Item Type Name | Trailer Lock |
| Manufacturer Part Number | 379DAT |
| Additional Features | Key Lock |
| Lock Type | Key Lock |
| Controller Type | Hand Control |
| Control Method | Touch |
| Style Name | Music |
| Color | Silver |
| Shape | U-shaped |
| Material Type | Silver |
| Finish Types | Polished |
| Item Dimensions | 7.54 x 6.63 x 3.05 inches (19.2 x 16.8 x 7.7 cm) |
| Item Weight | 1.7 pounds (770 grams) |
| Brand | Master Lock |
| Special Feature | Key Lock |
| Item dimensions L x W x H | 7.54 x 6.63 x 3.05 inches (19.2 x 16.8 x 7.7 cm) |
| Material | Silver |
Who Should Buy?
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Frequent Trailer Users
Ideal for individuals who regularly tow trailers and need reliable security when parking their trailers.
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Freight Transport Companies
A great choice for businesses that operate multiple trailers, ensuring security against theft during loading or unloading.
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Recreational Vehicle Owners
Perfect for RV owners looking to secure their trailers while camping or parked in various locations.
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Heavy-Duty Needs
Not suitable for heavy-duty applications where more robust locking solutions are required for added security.
Product Description
Master Lock Trailer Lock, Universal Trailer Coupler Lock, 379DAT, Silver, Standard
About This Item
Looking for a durable and reliable trailer lock? Look no further than the Master Lock Trailer Lock, Universal Trailer Coupler Lock, 379DAT. Designed to fit 1-7/8 inch, 2 inch, and 2-5/16 inch couplers manufactured by Reese, Fulton, Valley, Atwood, Shelby, Putnam, Hammerblow, Dutton-Lainson, and UFP, this lock is a versatile choice for your vehicle, trailer, or RV. Featuring an advanced locking mechanism that resists picking and prying, this trailer hitch lock is built to keep your possessions secure. And with its easy-to-use design, installation and removal is a breeze. But the Master Lock Trailer Lock is more than just secure -- it's also durable.
Made to resist rust and corrosion, this trailer coupler will stand up to the toughest conditions. And with its sturdy construction, you can be sure that it will last for years to come. So if you're looking for a reliable and long-lasting trailer lock, look no further than the Master Lock Trailer Lock, Universal Trailer Coupler Lock, 379DAT. Order yours today and enjoy peace of mind on the road.
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is the purpose of the Master Lock Trailer Lock, 379DAT?
Answer: The Master Lock Trailer Lock, 379DAT, is designed to provide robust security for your trailer by preventing unauthorized access. This universal coupler lock secures the coupler of your trailer, ensuring that it cannot be detached from the towing vehicle. Effective for both storage and travel, it acts as a deterrent against theft, especially in high-risk areas. If you use trailers for farming, camping, or transporting goods, this lock is essential to safeguard your valuable assets. -
Question:
Is the Master Lock 379DAT compatible with all trailer couplers?
Answer: Yes, the Master Lock 379DAT is a universal coupler lock designed to fit most standard trailer couplers, making it highly versatile. It accommodates a wide range of trailer types, from utility trailers to boat trailers. However, for specific applications, checking compatibility with your trailer's coupler type is recommended. This flexibility means whether you're hauling recreational gear or equipment for work, you can trust this lock to keep your trailer secure. -
Question:
How does the Master Lock Trailer Lock provide enhanced security?
Answer: The Master Lock Trailer Lock enhances security through its durable construction and innovative design. Made from solid steel, it is resistant to cutting and tampering, while its unique design makes it difficult for thieves to remove without special tools. Additionally, the keyway is engineered to prevent lock picking. If you often park your trailer in public spaces or unattended areas, this lock offers peace of mind, crucial for protecting your cargo. -
Question:
Can I use the Master Lock 379DAT during bad weather conditions?
Answer: Yes, the Master Lock 379DAT is built to withstand harsh weather conditions, making it suitable for year-round use. Its corrosion-resistant finish ensures that rain, snow, and humidity won't adversely affect its functionality. This resilience makes it ideal for truckers, campers, or anyone who frequently travels with a trailer, as it guarantees ongoing protection regardless of climate conditions. -
Question:
What are some tips for using the Master Lock Trailer Lock effectively?
Answer: To use the Master Lock Trailer Lock effectively, first ensure that you securely attach it to the coupler and double-check that it is locked properly. Regularly inspect the lock for any debris or signs of wear, especially if used in rugged environments. Additionally, consider using it in combination with other security measures, such as wheel locks or alarm systems. This combination makes it much more challenging for thieves, enhancing the overall security of your trailer when parked. -
Question:
Does the Master Lock 379DAT come with spare keys?
Answer: The Master Lock Trailer Lock, 379DAT is typically sold with two keys included in the package. This feature is beneficial, as it provides a backup in case one key is lost. It is advisable to store one key in a safe place while using the other regularly. For users who are often on the go or may misplace keys, having a spare can prevent lockout situations, ensuring uninterrupted access to your trailer whenever needed. -
Question:
Can the Master Lock coupler lock be used on other types of vehicles?
Answer: The Master Lock 379DAT coupler lock is specifically designed for use on trailers. While its primary function is to secure trailer couplers, similar locks may fit other towing setups. However, it's not intended for standard door locks, vehicles, or different applications. If you have multiple trailers or varied coupling systems, this universal design ensures compatibility with most of your needs, making it a practical choice for diverse situations. -
Question:
What is the material used in the construction of the Master Lock Trailer Lock?
Answer: The Master Lock Trailer Lock, 379DAT is constructed from solid steel, which offers excellent strength and resistance to tampering. This robust material ensures that the lock can withstand attempts at cutting or breaching. The silver finish also adds a layer of corrosion protection. Whether you’re using it on a farm for securing equipment or for a weekend camping trip, its reliability is crucial for protecting your valuables against theft. -
Question:
Where can I buy the Master Lock Trailer Lock, 379DAT?
Answer: You can buy the Master Lock Trailer Lock, Universal Trailer Coupler Lock, 379DAT in Saudi Arabia at Ubuy. Ubuy offers a seamless shopping experience with a variety of options, making it easy for you to find the right locking solution for your trailers. Whether you need it for personal or professional use, Ubuy provides reliable access to essential products like this to enhance your security. -
Question:
How do I maintain the Master Lock Trailer Lock to ensure durability?
Answer: Maintaining the Master Lock Trailer Lock involves simple steps to ensure its longevity. Regularly inspect the lock for any signs of rust or damage, especially after exposure to moisture. It's beneficial to lubricate the keyway occasionally to prevent jamming and ensure smooth operation. Storing the lock in a dry environment when not in use can also help to keep it in excellent condition. Proper care will keep your lock functioning well, protecting your trailer for the long haul.
Master Lock Hitch Locks 379DAT Editorial Review
The Master Lock Trailer Lock, Universal Trailer Coupler Lock, 379DAT is a good option to protect your trailer from theft. It is compatible with most trailer couplers and is made of durable materials. Although the lock itself is sturdy, some customers have commented that the quality of the lens could be improved. Overall, it is a reliable and secure lock to keep your trailer safe.
Customer Reviews & Ratings
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Pros
- Compatible with most trailer couplers
- Sturdy and durable materials
- Reliable and secure lock
Cons
- Quality of lens could be improved
Platform Trust & Buyer Confidence
E
Essam
Verified buyer
“Perfect service and fast delivery.”
16-Jul-26 · via Trustpilot
MG
Mohamed
Verified buyer
“We feel very good about the delivery time, and the materials we received matched our order.”
14-Jul-26 · via Trustpilot
AF
Anila
Verified buyer
“Good experience of shopping through Ubuy.”
16 June 2026 · via Trustpilot
FS
Farrah
Verified buyer
“A very big Thank you to HUDA and the Ubuy Team in helping to send my order to me yesterday!! Order # 62606425316 Customer service and operations is top for this online shopping company and I am very satisfied with the way they handle issues. THANK YOU once again!!”
25 June 2026 · via Trustpilot
MA
Mekki
Verified buyer
“Arrive before time, excellent products”
9 July 2026 · via Trustpilot
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