377KA Master Lock Starter Sentry Trailer Coupler Lock Hitch Ball And
377KA Master Lock Starter Sentry Trailer Coupler Lock Hitch Ball And
Available in stock (26)
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377KA Master Lock Starter Sentry Trailer Coupler Lock Hitch Ball
Secure your towing experience with the 377KA Master Lock Starter Sentry Trailer Coupler Lock, designed to provide optimal protection for your trailers, vans, and moving trucks. As a trusted name in security, Master Lock delivers quality and innovation with every product.
Key Features:
- Advanced Locking Mechanism: Specifically engineered to resist picking and prying, ensuring your equipment stays safe.
- Durable Construction: Built to withstand rust and corrosion, making it perfect for all weather conditions.
- Versatile Compatibility: Works best with 1-7/8 inch, 2 inch, and 2-5/16 inch trailer couplers.
- Easy Installation: Designed for quick and hassle-free installation and removal, saving you time and effort.
- Limited Lifetime Warranty: Purchase with confidence knowing that Master Lock stands behind its products.
Ideal For:
This coupler lock is best used for:
- Automotive towing
- Trailers
- Vans
- Moving trucks
- Marine recreation
Choose the 377KA Master Lock Starter Sentry Trailer Coupler Lock for peace of mind while on the road. Protect your investment and ensure the safety of your towed equipment with this reliable and efficient locking solution.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

