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Alliance · HVAC
ABPN83MT1366
In stock · ships from Knoxville
This is an A/C binary pressure switch that monitors both high and low side pressures in your truck's air conditioning system.
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Verified fitment for 1 applications
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All confirmed applications for this part number.
Freightliner
Freightliner
Verified fitment for 1994-2003 Freightliner midsize trucks. May also fit other heavy-duty applications using an M10 x 1.25 female-thread binary switch with similar pressure setpoints, but always verify thread size and pressure specs against your OEM part number.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 16 of 37.
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It protects the compressor by cutting power if the refrigerant pressure drops too low (preventing compressor damage from lack of oil/lubrication) or rises too high (preventing burst hoses or compressor failure). It threads directly into the A/C line or receiver drier, typically on medium-duty Freightliner trucks from the 1994–2003 era. Replace it when your A/C clutch won't engage, the system cycles erratically, or you've confirmed incorrect pressure readings with a gauge set.
Part Number: ABPN83MT1366
LOW PRESSURE AC SWITCH
Vendor: Velocity
Dealer: KP Services Crossville
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