Description
About the 387 King Pin Trailer Coupler Lock
A semi-trailer sitting unattached in a lot is one stolen king pin away from disappearing entirely. The 387 King Pin Trailer Coupler Lock closes that vulnerability by locking the one connection point that keeps a fifth wheel trailer secured to its tractor.
Master Lock 387 King Pin Lock for Semi-Trailers, RVs, and Fifth Wheel Trailers
The Master Lock No. 387 High Security King Pin Lock secures the king pin of semi-trailers, RVs, and other fifth wheel trailers to prevent theft and deter break-ins. An integrated padlock (No. 5) comes built into the design, and bolt cutters can't touch it.
High-grade aluminum keeps the lock lightweight without giving up security. The bright red body and attached flag alert drivers at a glance that the lock is in place before they attempt to hook up.
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Model # |
387, 387KA |
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Key Option |
Keyed Different, Keyed Alike |
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Color Option |
Red |
387 King Pin Trailer Coupler Lock Product Highlights
- Secures the kingpin of semi-trailers, RVs, and other fifth-wheel trailers
- Renders bolt cutters useless
- High-grade aluminum is lightweight while providing high security
- High-visibility red body and durable flag alert drivers that the lock is attached
- Includes an integrated No 5 lock with all of its security and keying flexibility
Best Used For: Severe Use
A fleet's biggest vulnerability often sits right at the kingpin. 1st-in-Padlocks carries king pin locks, coupler locks, and receiver locks built for semi-trailers, RVs, and fifth wheels at risk of serious theft. Reach out to our team to lock down your fleet's most exposed connection point.
