Complete security for your trailer's coupler/tongue. These locks will fit virtually all trailers that have 1-7/8" or 2" couplers and most 2-5/16" couiplers. Please check/read the SEE MORE PRODUCT DETAILS below for important coupler lock fitment information. KEYED ALIKE - One key opens both locks. We can key multiple sets to the same key number. If multiples are ordered we will automatically key them all the same. Each lock comes with two keys, for a total of four keys. COUPLER LOCK FEATURES: Advanced locking mechanism resists picking and prying. Simple installation and removal. Aluminum diecast finish resists rust and corrosion. LATCH PADLOCK FEATURES: 1-9/16 (40mm) wide laminated steel body, 1-1/2in (38mm) tall, 9/32 (7mm) diameter hardened steel shackle for extra cut resistance. Thousands of key changes maximize key integrity. Dual Locking levers provide extra pry resistance. Proprietary rustproofing for longer life. HARDENED steel bottom plates for drill resistance. Limited Lifetime Warranty on all locks in this set. 377 Coupler Lock Features
- SPECIFICATIONS: Fits 1-7/8", 2" and some 2-5/16" trailer couplers. They will fit some 2-5/16" couplers. However for the larger 2-5/16" couplers we prefer the 379KA coupler lock - search 3KA-379-37.
- DURABLE DESIGN: Aluminum diecast finish resists rust and corrosion. Advanced locking mechanism resists picking and prying. Easy to install and remove.
3 Latch Lock Features
- Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
- Hardened steel bottom plates for drill resistance. Top and bottom bumpers for greater scratch resistance.