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Haldex · Brakes & Wheel End
400-10211
In stock · ships from Knoxville
This is an automatic slack adjuster (ABA) for heavy-duty truck and trailer drum brakes.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 2 applications
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All confirmed applications for this part number.
Other applications
Other applications
Verify arm length (5.5"), spline count (28), camshaft diameter (1.5"), and straight (0") offset match your specific axle. Commonly used on many North American trailer suspensions.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 12 of 12.
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It automatically maintains proper clearance between the brake shoes and drum, ensuring consistent braking and reducing manual adjustment needs. With a 1.5-inch, 28-spline camshaft fit and 5.5-inch arm length, it is designed for trailer axles with 16.5-inch brake assemblies. Replace it if it stops adjusting correctly, shows excessive mechanical wear, or causes uneven braking performance.
Part Number: 400-10211
HALDEX AUTO ADJ 28SPL 5.5
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end
