Jendyk Heavy-Duty King Pin Lock — Keyed Differently

  • Withstands illegal coupling attempts and prevents theft of semi-trailers and fifth wheel campers
  • Thick-walled, high-strength ductile iron casting is weld free and virtually impossible to break
  • Closed base design adds extra strength and holds grease in for clean, easy installation and removal
  • Unique bell shape keeps the lock from jamming or wedging in the fifth wheel
  • Completely covers king pin
  • Keyed differently for individual trailer security
  • 5.25in.L x 2.87in.W x 4in.H
  • Includes yellow flag to let truckers know a lock is installed
  • Comes with 2 keys and a stainless steel tie strap
SKU: KPLMK5HD-KD Category:

Product description

Designed for semi-trailers and fifth wheel campers, the Jendyk Heavy-Duty King Pin Lock provides extra security and prevents hijackings. Made with thick-walled, high-strength ductile iron casting, this theft-deterrent device is virtually impossible to break and features a unique, bell-shaped design to keep the lock from jamming or wedging in the fifth wheel. The lock completely covers the king pin and is keyed differently for individual trailer security.

Additional information

Item Number


Product Weight

4.0 lbs

Keys Included (qty.)


Material Type

Powder-coated ductile iron

Dimensions L x W x H (in.)

5 1/4 x 2 7/8 x 4


(1) Lock, (2) Key, (1) Yellow flag, (1) Tie strap