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Haldex · Air System
90555396
In stock · ships from Knoxville
This is a pressure protection valve for heavy-duty air brake systems.
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Verified fitment for 1 applications
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All confirmed applications for this part number.
Universal fit
Commonly used on heavy-duty trucks and trailers with air brake systems; not vehicle-specific.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 15 of 15.
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It separates the auxiliary air supply from the primary brake air tanks. When the auxiliary system pressure drops below 65 psi due to a leak, the valve closes to preserve air for safe braking. It is a direct replacement for worn or damaged valves on tractors, trucks, and trailers.
Part Number: 90555396
PPV 65PSI
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside air system
