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PAI · Probes & Sensors
740252
In stock · ships from Knoxville
This is a normally closed low air pressure switch used in the air system of heavy-duty trucks.
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.
Freightliner
Other applications
Freightliner
Other applications
Designed as a direct aftermarket replacement for OE part numbers FSC2749-2108 and 3014-27492108. Verify your vehicle’s required OE switch number before ordering.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 4 of 4.
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It monitors air pressure and opens its electrical contacts at about 73 psi (with a ±7 psi tolerance) to signal low pressure conditions to warning lights or buzzers. Common applications include low air pressure warning or parking brake indicator circuits on Freightliner and Mack vehicles. Replace this switch if your low air warning or parking brake light stays on or fails to illuminate, indicating a faulty sensor.
Part Number: 740252
pr switch, ftlfsc2749-2108
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
