Description
The 2601380 thermostatic switch is built for Mack 12V 24in Capillary. This 12V preset-temperature switch regulates A/C compressor clutch cycling by measuring evaporator air temperature via a 24-inch capillary tube. Cuts in at 39.5°F, cuts out at 31°F, providing precise temperature control in Mack, Peterbilt, and Western Star heavy-duty truck air conditioning systems.
Signs You Need a New Thermostatic Switch
- A/C compressor clutch runs continuously without proper cycling
- Evaporator freezes up and blocks refrigerant flow
- Air conditioning cycling is inconsistent or erratic
- A/C does not shut off at thermostat set point
Specifications
| Manufacturer | Kysor |
|---|---|
| Part Number | 2601380 |
| Part Type | Fixed (Preset) Thermostatic Switch |
| Voltage | 12V |
| Capillary Tube Length | 24 inches |
| Set Temperature Range | Cut-in 39.5°F, Cut-out 31°F |
| Refrigerant Type | R12/R134a |
| Engine Compatibility | Mack 320, 4700, 4900, 5700 Series |
Cross References
This part replaces or is equivalent to the following part numbers:
- Mack OEM: A22-23640-000, A46-3122-000, A46-3122-030
- Kysor: 2399003, 2399014
- John Deere: RE305730
- Ranco: N83-323010
- Red Dot: RD5-4531-24
- Also known as: 1-4183, 13-4202, 128285, 210-936, 323010, 404145, 650476, 850-9181, BD1070, ABPN83323010, PTAC1332
Applications
This thermostatic switch fits:
- Mack CH, CL, CM, CS 320 Series (2001-2020)
- Mack 4700, 4900, 5700 Series (2001-2020)
- Peterbilt 320 Series, 4700 Series, 4900 Series
- Western Star and other OEM match applications
Verify your truck model and A/C system configuration before ordering to confirm fitment.
