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Hendrickson · Suspension & Steering
S-25593
In stock · ships from Knoxville
The Hendrickson S-25593 is an air spring actuator specifically for the SureLok suspension height lock system found on many commercial trailers.
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Designed for the SureLok height control mechanism; not for standard air-ride suspension bellows. Common on many trailer makes and models that incorporate the SureLok system.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 15 of 15.
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It uses air pressure to mechanically lock the suspension at a set height, ensuring consistent ride height and axle alignment during loading or transport. This actuator is typically replaced when it begins leaking air, fails to lock properly, or shows physical damage, which can compromise the trailer's stability and load-handling. It is a direct replacement part with exact mounting and air connection dimensions.
Part Number: S-25593
AIR SPRING, SURELOK HEND
Unit: ea
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside suspension & steering
