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Hendrickson · Brakes & Wheel End
HENS-38721-L
In stock · ships from Knoxville
This is a Hendrickson spring brake chamber, specifically a Type 18/24 combination air disc brake chamber.
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This is a left-hand (LH) specific chamber designed for Hendrickson air disc brake trailer axles. While cross-references exist for other Type 18/24 disc brake chambers, precise vehicle fitment depends on the suspension model year and mounting bracket. The unhanded version is S-38721-U.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 8 of 8.
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It combines the service brake (Type 18) and the parking/emergency spring brake (Type 24) into a single unit mounted at the wheel end. It is typically replaced when there is a loss of braking performance, an air leak at the chamber, or a broken internal spring, which activates the parking brake automatically for safety.
Part Number: HENS-38721-L
BRAKE CHAMBER TYPE 18/24
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end
