Red Dot 71R6080 High Pressure Switch with Harness (Normally Open) – 215 PSI Close / 170 PSI Open

The Red Dot 71R6080 high pressure switch with harness is designed to monitor high-side refrigerant pressure in mobile HVAC systems used on Peterbilt and Freightliner FL50, FL60, FL70, and M2 100–112 series vehicles. It is a normally open switch that closes at higher pressure (215 PSI) and opens at lower pressure (170 PSI) to help protect the system during operation.

This switch features a 1/4-inch female fitting and includes a two-conductor female Weatherpak connector with harness, providing a secure, weather-resistant electrical connection. Its defined pressure range and OEM compatibility make it a reliable service replacement for heavy-duty HVAC applications.

Use the specifications and interchange numbers below to confirm compatibility before ordering.

Product Specifications

• Part Type: High Pressure Switch

• Red Dot Part No.: 71R6080

• Red Dot Factory / Catalog No.: RD-5-6394-0P

• OEM Reference: RD5-6394-0

• Switch Type: High side

• Operating Style: Normally open

• Opens At: 170 PSI

• Closes At: 215 PSI

• Function: Opens at low pressure, closes at high pressure

• Fitting: 1/4″ female

• Electrical Connection: 2-conductor female Weatherpak connector with harness (Packard #20PS39-38)

• Application: Peterbilt; Freightliner FL50, FL60, FL70; M2 100–112 series

Cross Reference Numbers

• AirSource (MEI): 1452

• Alliance: 318040, 318064, ABP N83 318040

• Climatech: BA1250

• Four Seasons: 36670

• Freightliner: BOA80-941-00-063

• Mack: 4379-RD563940

• PACCAR / Peterbilt: 18-03163

• Texas Instrument Switch: 20PS39-38, 20PS39-4

• Truck Air (MEI): 11-2642

• Red Dot (Aftermarket): 71R6080

• Red Dot (Factory): RD-5-6394-0P

Interchange Numbers

11-2642, 1452, 18-03163, 207102, 232-8464, 36670, 4379-RD563940, 4379-RD563940P, 71R6080, 850-8127, 912-1004, 925719, ABP N83 318040, ABP N83 318064, BA12500, BOA80-941-00-063, E-807300, E-807339, RDHRD563940P, RDT71R6080, SWI1804