The Red Dot 71R6235 high pressure switch is a normally closed, high-side pressure switch designed to protect mobile A/C systems by opening when system pressure exceeds safe operating limits. It closes at 225 PSI and opens at 275 PSI, helping prevent compressor damage during high-pressure events.
This switch features an M10 x 1.25 female fitting and a two-conductor male Weatherpak connector, making it a direct replacement for select Navistar/IHC truck A/C applications. Use the specifications and interchange numbers below to confirm proper fitment before ordering.
Product Specifications
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Part Type: High Pressure Switch
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Red Dot Part No.: 71R6235
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Red Dot Factory No.: RD-5-14603-0P
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Application: Navistar / IHC trucks
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Switch Type: High side pressure
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Operating Style: Normally closed
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Closes At: 225 PSI
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Opens At: 275 PSI
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Fitting / Connector: M10 x 1.25 female / two-conductor male Weatherpak
Cross Reference Numbers
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Texas Truck AC: 850-8406, 850-8406A
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AirSource (MEI): 1489
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Alliance: ABP N83 318001
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CoolStar (MEI): 917-1114
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Navistar International: 3521729-C1
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NDNS: 3521729C1
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Omega: 29-30742
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Primatech: PTAC1489
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Road Choice: SWI2314
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SunAir: MC-1325
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Truck Air (MEI): 11-0829
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TruckAC+: T11317, T4159
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TTA/C: 14-5555
Interchange Numbers
1489, 3521729-C1, 3521729C1, 71R6235, 917-1114, ABP N83 318001, MT1921, RDHRD5146030P, RDT71R6235, SWI2314
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