Watchdawg Locking Parking Brake Air Valve Knob

Item
231862
$126.99
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Protect your truck and your cargo! The Watchdawg replaces the standard yellow tractor parking brake knob. Installs quickly without tools. Made of aluminum with a bright anodized finish. Once installed it stays on, making it convenient to use anytime -- no more fumbling around with removable locking devices! Perfect for use in tractor-trailer applications as well as RV, buses and more. Thread on installation. Fits screw-on style knobs only. Made in the USA.

How it works:....  More...

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Protect your truck and your cargo! The Watchdawg replaces the standard yellow tractor parking brake knob. Installs quickly without tools. Made of aluminum with a bright anodized finish. Once installed it stays on, making it convenient to use anytime -- no more fumbling around with removable locking devices! Perfect for use in tractor-trailer applications as well as RV, buses and more. Thread on installation. Fits screw-on style knobs only. Made in the USA.

How it works:

  • Remove the yellow knob and install the Watchdawg using one of the included adapters.
    Pull the knob out to apply the brakes.
  • Insert key and unlock, enabling the Watchdawg to slide back and forth.
  • Reposition the Watchdawg against the dash and turn the key to lock. Locking the knob against the dash prevents brake release.
  • Return the knob to operating mode by using the key to unlock, pull the knob to its outer position and re-lock. The brake valve will now operate normally.

    NOTE: Red trailer knob is not included.
    Roll-pin style available by special request, please call 866-446-9280.


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