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40-4HD Caster/Bracket Kit

Performance Overview

User or Factory Installed

40-4HD is a set of 2 heavy duty aluminum brackets with 4in casters that allows 360 degree mobility of ladder. For use on PT370, PT6000, PT7400 (mk4 and up), the set comes with mounting hardware and instructions.


  • Heavy duty aluminum bracket with 4in caster allows 360 degree mobility of ladder
  • Soft rubber wheels are easy on floors; designed to roll over door thresholds
  • Two (2) casters/brackets come with mounting hardware and instructions
  • For use on PT370, PT6000, PT7400 (mk4 and up)


FeatureSize / Details
User or Factory InstalledUser
Approx. Shipping Weight Lbs.5
Approx. Cu. Ft. Per Unit0.26

Fits only ladder originally equipped with casters

Package Contents

Part NumberQtyDescription



Additional 40 Series Models

Model No.Buy Online
Fits only ladder originally equipped with casters
Fits only ladder originally equipped with casters

Different types of ladders are designed to keep you safe and productive when climbing or standing. Using the wrong style of ladder or simply ignoring the limitations of climbing equipment can result in a fall or serious injury.
Height is referring to the actual ladder height. Extension ladders should be 7 to 10 feet longer than the highest support or contact point, which may be the wall or roof line. The highest standing level is four rungs down from the top. The highest permitted standing level on a stepladder is two steps down from the top.

Reach height is the maximum reach assuming a 5’6” person with a vertical 12” reach.
Ladders are designed to safely hold up to a specific amount of weight. The Werner Performance System defines five different capacities using a color and star rating system. The Duty Rating is defined as the maximum safe load capacity of the ladder. A person’s fully clothed weight plus the weight of any tools and materials that are carried onto the ladder must be less than the load capacity.

Werner offers ladder made from fiberglass and aluminum. Each material has characteristics which make it best for certain applications, or one material may simply fit the personal preferences of the user. For example, if working around electricity users should select fiberglass products due to their non-conductive side rails.