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Haldex · Air System
AL430668
In stock · ships from Knoxville
The Haldex AL430668 is a 4-port trailer ABS modulator valve with an integrated spring brake control function (FFABS).
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Universal fit
Designed for trailer air brake systems that use Haldex/ Midland Full‑Function ABS modulator valves. The ECU and mounting bracket from the existing valve may need to be transferred. Verify port sizes and voltage match your trailer's setup.
Part data verified against 5 catalog sources
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It manages both anti‑lock braking and spring brake application in heavy‑duty trailer air brake systems. The valve is 12‑volt, service brake priority (black exhaust cover), and comes with a pre‑installed reservoir nipple that swivels for easier installation. It is typically replaced when the ABS valve fails, causing erratic braking, fault codes, or air leaks.
Part Number: AL430668
ABS VALVE
Unit: ea
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside air system
