Buy Now, Pay Later
- – 4-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Recently Viewed
At a glance
- Condition
- New
- Style
- Trailer Hitch Lock
- Model
- 379ATPY
- Dimensions
- 5.1 x 3.5 x 4.6 in
- Weight
- 16 oz
- Color
- Black
- Material
- Zinc
- In the box
- Unit^Instruction Guide
Features 5
- SECURE TRAILERS, RVS AND TOWING EQUIPMENT: This Master Lock trailer coupler lock helps deter theft by blocking unauthorized coupling, making it a dependable trailer hitch lock for parked trailers, RVs, campers, boat trailers, and utility trailers.
- UNIVERSAL FIT FOR COMMON COUPLER SIZES: Designed to fit 1-7/8 in. (48 mm), 2 in. (51 mm), and most 2-5/16 in. (59 mm) trailer couplers, this trailer tongue lock gives shoppers one versatile solution for multiple towing setups.
- ADVANCED LOCKING SECURITY: The locking mechanism is engineered to resist picking and prying with visible, keyed trailer coupler protection.
- RUST AND CORROSION-RESISTANT ZINC BUILD: Durable zinc construction helps this trailer hitch coupler lock stand up to outdoor storage, changing weather, boat ramps, campsites, jobsites, and everyday driveway use.
- READY TO USE WITH TWO KEYS: Includes one universal trailer coupler lock and two keys, giving you a complete keyed hitch lock solution for securing towing equipment between trips, during storage, or when your trailer is unattended.
Description
Protect your trailer with the Master Lock 379ATPY Universal Trailer Coupler Lock, a practical towing security solution designed to help prevent unauthorized coupling when your trailer is parked, stored, or left unattended. Built for shoppers looking for a trailer hitch lock that is simple, visible, and compatible with common coupler sizes, this lock helps secure utility trailers, enclosed trailers, RVs, campers, boat trailers, and other towable equipment. This universal design fits 1-7/8 in. (48 mm), 2 in. (51 mm), and most 2-5/16 in. (59 mm) trailer couplers, covering many of the most common towing applications. The coupler lock helps add protection at home, on the road, at a campsite, near a marina, or on a jobsite where trailers may sit unattended between uses. The advanced locking mechanism is engineered to resist picking and prying, giving trailer owners a reliable way to help deter theft and unwanted hitching. Its zinc construction helps resist rust and corrosion for outdoor performance, making it a strong choice for anyone searching for a boat trailer lock, camper hitch lock, RV hitch lock, trailer tongue lock, or lock for trailer hitch security. Compact and easy to keep with your trailer hitch accessories, this keyed trailer coupler lock includes two keys so you can store a spare where it is convenient. Whether you are securing a trailer between weekend trips, protecting equipment during seasonal storage, or adding a visible theft deterrent to your towing setup, the Master Lock 379ATPY offers dependable trailer security from a brand known for trusted locking products.
Specs 30
| Brand | Master Lock |
|---|---|
| Special Feature | Anti-Corrosion, Cut Resistant, Weather Resistant |
| Lock Type | Key Lock |
| Item dimensions L x W x H | 5.1 x 3.5 x 4.6 inches |
| Material | Zinc |
| Brand Name | Master Lock |
| Recommended Uses For Product | vehicles, trailers, RVs |
| Number of Pieces | 1 |
| Model Number | 379ATPY |
| UPC | 071649229220 |
| Model Name | Universal Towing Coupler Lock, Steel |
| Global Trade Identification Number | 20 |
| Manufacturer Warranty Description | 1 year manufacturer |
| Number of Items | 1 |
| Manufacturer | Master Lock |
| Number of Packs | 1 |
| Unit Count | 1 Count |
| Item Type Name | Universal Trailer Hitch Lock |
| Manufacturer Part Number | 379ATPY |
| Additional Features | Anti-Corrosion, Cut Resistant, Weather Resistant |
| Controller Type | Hand Control |
| Control Method | Touch |
| Style Name | Trailer Hitch Lock |
| Color | Black |
| Shape | Rectangular |
| Material Type | Zinc |
| Finish Types | Polished |
| Item Dimensions | 5.1 x 3.5 x 4.6 inches |
| Item Weight | 16 ounces |
| Item Highlight | Universal Trailer Coupler Lock Secures RVs, Campers, Boat and Utility Trailers from Theft, Resists Rust, 2 Keys, Black |
No specs match.
Frequently asked questions
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
