This heavy duty Masterlock 2989AT Gooseneck / 5th wheel / king pin lock will prevent someone from simply hooking up and tow your travel trailer away. 2989AT will fit on most popular gooseneck couplers as well as many (lunette eye) Pintle ring hitches.

• Fits both Fixed and Adjustable style Gooseneck /Fifth Wheel Style Trailer Couplers
• Fits 3" Lunette Rings and King Pin
• Laminated steel frame construction for reliable performance
• Powder Coated finish resists corrosion
• Re-keyable Python Cylinder
• Easy to install and remove
• Keyway cover protects lock from moisture and dirt

Dimensions: 12-1/4" long x 6-1/2" wide x 5-1/2" tall
Limited lifetime warranty