How to replace the pressure cycling switch in an air conditioning system?

To replace the HVAC Pressure Switch in an air conditioning system, it is recommended to have a professional air conditioning technician discharge the refrigerant. Once the refrigerant has been discharged, unplug the electrical connector from the pressure cycling switch and unscrew the switch, making sure to hold the fitting on the line with a wrench to prevent any damage. Before installing the new switch, lubricate the switch O-ring with clean refrigerant oil compatible with R134-a systems. Screw the new switch onto the threads and reconnect the electrical connector. Finally, it is important to have the system evacuated, charged, and leak tested by the shop that discharged it.

Genuine Toyota Tundra HVAC Pressure Switch

Air Pressure Switch

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4 HVAC Pressure Switches found

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Toyota Tundra Sensor, Air CONDITIO
Part Number: 88719-11010
- Other Name: Pressure Sensor, Pressure Switch
$163.74 MSRP: $232.78
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Fits the following Vehicles:
2022 Toyota Tundra
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Toyota Tundra Switch, Pressure
Part Number: 88645-60060
- Other Name: Pressure Switch
$124.02 MSRP: $176.32
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Fits the following Vehicles:
2017-2020 Toyota Tundra | Limited, Platinum, SR5 | 8 Cyl 5.7L | 3URFBE, 3URFE; 3URFBE, 3URFE; USK51L-CRTLKA, USK51L-CRTSKA, USK51L-PSTLKA, USK51L-PSTSKA, USK51L-PSTZKA, USK51L-THTSKA, USK52L-CHTSKA, USK56L-CRTLGA, USK56L-CRTLKA, USK56L-CRTSGA, USK56L-CRTSKA, USK56L-PSTLGA, USK56L-PSTLKA, USK56L-PSTSGA, USK56L-PSTSKA, USK56L-PSTZGA, USK56L-PSTZKA, USK56L-THTSGA, USK56L-THTSKA, USK57L-CHTSGA, USK57L-CHTSKA
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Toyota Tundra Switch, Pressure
Part Number: 88645-04040
- Other Name: Pressure Cut-Off Switch, Pressure Switch
- Replaces: 88645-34010
$54.43 MSRP: $76.08
You Save: $21.65 (29%)
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Fits the following Vehicles:
2000-2006 Toyota Tundra | DLX, Limited, SR5 | 6 Cyl 3.4L, 6 Cyl 4.0L, 8 Cyl 4.7L | 1GRFE, 2UZFE, 5VZFE; 1GRFE, 2UZFE, 2UZFE; UCK31L-PRBLKA, 5VZFE; GSK30L-ARBSKA, GSK30L-ARFSKA, GSK30L-TRBDKA, GSK30L-TRBDKK, GSK30L-TRFDKA, UCK30L-ARBLKA, UCK30L-ARBSKA, UCK30L-ARBSKK, UCK30L-ARSLKA, UCK30L-ARSLKK, UCK30L-ARSSKA, UCK30L-ARSSKK, UCK30L-ASBLKA, UCK30L-ASBSKA, UCK30L-ASSLKA, UCK30L-ASSSKA, UCK30L-TRBDKA, UCK31L-PRBLKA, UCK31L-PRBSKA, UCK31L-PRBSKK, UCK31L-PRSLKA, UCK31L-PRSSKA, UCK31L-PRSSKK, UCK40L-ARBLKA, UCK40L-ARBLKK, UCK40L-ARBSKA, UCK40L-ARBSKK, UCK40L-ARSLKA, UCK40L-ARSLKK, UCK40L-ARSSKA, UCK40L-ARSSKK, UCK40L-ASBLKA, UCK40L-ASBSKA, UCK40L-ASSLKA, UCK40L-ASSSKA, UCK40L-TRBDKA, UCK40L-TRBDKK, UCK40L-TRSDKK, UCK40L-TRSSKA, UCK41L-PRBLKA, UCK41L-PRBLKK, UCK41L-PRBSKA, UCK41L-PRBSKK, UCK41L-PRSLKA, UCK41L-PRSLKK, UCK41L-PRSSKA, UCK41L-PRSSKK, VCK30L-ARMSKA, VCK30L-ARSLKA, VCK30L-ARSSKA, VCK30L-ARSSKK, VCK30L-TRMDKA, VCK30L-TRMDKK, VCK30L-TRSDKA, VCK30L-TRSDKK, VCK40L-ARMSKA, VCK40L-ARMSKK, VCK40L-ARSLKA, VCK40L-ARSSKA, VCK40L-ARSSKK, VCK40L-TRMDKK, VCK40L-TRMSKA, VCK40L-TRSDKK, VCK40L-TRSSKA
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Toyota Tundra Switch, Pressure
Part Number: 88645-34010
- Other Name: Switch, Pressure NO.1
- Manufacturer Note: W(SINGLE AIR CONDITIONER)
- Replaced by: 88645-04040
$54.43 MSRP: $76.08
You Save: $21.65 (29%)
More Info
Fits the following Vehicles:
2000-2006 Toyota Tundra | DLX, Limited, SR5 | 6 Cyl 3.4L, 6 Cyl 4.0L, 8 Cyl 4.7L | 1GRFE, 2UZFE, 5VZFE; 1GRFE, 2UZFE, 5VZFE; GSK30L-ARBSKA, GSK30L-ARFSKA, GSK30L-TRBDKA, GSK30L-TRBDKK, GSK30L-TRFDKA, UCK30L-ARBLKA, UCK30L-ARBSKA, UCK30L-ARBSKK, UCK30L-ARSLKA, UCK30L-ARSLKK, UCK30L-ARSSKA, UCK30L-ARSSKK, UCK30L-ASBLKA, UCK30L-ASBSKA, UCK30L-ASSLKA, UCK30L-ASSSKA, UCK30L-TRBDKA, UCK31L-PRBLKA, UCK31L-PRBSKA, UCK31L-PRBSKK, UCK31L-PRSLKA, UCK31L-PRSSKA, UCK31L-PRSSKK, UCK40L-ARBLKA, UCK40L-ARBLKK, UCK40L-ARBSKA, UCK40L-ARBSKK, UCK40L-ARSLKA, UCK40L-ARSLKK, UCK40L-ARSSKA, UCK40L-ARSSKK, UCK40L-ASBLKA, UCK40L-ASBSKA, UCK40L-ASSLKA, UCK40L-ASSSKA, UCK40L-TRBDKA, UCK40L-TRBDKK, UCK40L-TRSDKK, UCK40L-TRSSKA, UCK41L-PRBLKA, UCK41L-PRBLKK, UCK41L-PRBSKA, UCK41L-PRBSKK, UCK41L-PRSLKA, UCK41L-PRSLKK, UCK41L-PRSSKA, UCK41L-PRSSKK, VCK30L-ARMSKA, VCK30L-ARSLKA, VCK30L-ARSSKA, VCK30L-ARSSKK, VCK30L-TRMDKA, VCK30L-TRMDKK, VCK30L-TRSDKA, VCK30L-TRSDKK, VCK40L-ARMSKA, VCK40L-ARMSKK, VCK40L-ARSLKA, VCK40L-ARSSKA, VCK40L-ARSSKK, VCK40L-TRMDKK, VCK40L-TRMSKA, VCK40L-TRSDKK, VCK40L-TRSSKA
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Toyota Tundra HVAC Pressure Switch Parts Questions & Answers

Switch, Pressure
88645-60060
Q: How to replace the pressure cycling switch in an air conditioning system?
A: To replace the HVAC Pressure Switch in an air conditioning system, it is recommended to have a professional air conditioning technician discharge the refrigerant. Once the refrigerant has been discharged, unplug the electrical connector from the pressure cycling switch and unscrew the switch, making sure to hold the fitting on the line with a wrench to prevent any damage. Before installing the new switch, lubricate the switch O-ring with clean refrigerant oil compatible with R134-a systems. Screw the new switch onto the threads and reconnect the electrical connector. Finally, it is important to have the system evacuated, charged, and leak tested by the shop that discharged it.