Description
Keep Freightliner 12V 16in cooling with the 2601378 thermostatic switch. This 12V fixed-set switch regulates A/C compressor clutch cycling by sensing evaporator temperature. Cuts in at 35°F, cuts out at 28°F with a 7°F clutch cycling range. 16-inch capillary tube delivers precise temperature sensing to the switch mechanism in Freightliner, Peterbilt, and Western Star heavy-duty trucks.
Signs You Need a New Thermostatic Switch
- A/C compressor runs continuously without cycling
- Evaporator coil freezes up and ice blocks refrigerant flow
- Air conditioning produces inconsistent cooling cycles
- A/C does not shut off at the thermostat set point
Specifications
| Manufacturer | Behr |
|---|---|
| Part Number | BOA80-946-00-079 |
| Part Type | Fixed (Preset) Thermostatic Switch |
| Voltage | 12V |
| Capillary Tube Length | 16 inches |
| Set Temperature Range | Cut-in 35°F, Cut-out 28°F |
| Clutch Cycle Range | 7°F |
| Refrigerant Type | R12/R134a |
| Engine Compatibility | Freightliner Century, Columbia, FL50-FL80 |
Cross References
This part replaces or is equivalent to the following part numbers:
- Behr OEM: BOA80-946-00-079, BOA80-946-00-109
- Freightliner: 1315
- Mack: A63001400
- Cummins/Signature: N83-323053
- Also known as: 1-6291, 1-9224, 128280, 210-9176, 850-9176, ABPN83323053, BD1080, PTAC1315
Applications
This thermostatic switch fits:
- Freightliner Century, Classic, Columbia (2001-2010)
- Freightliner FLD120 (2001-2010)
- Peterbilt, Western Star, and International applications with matching spec
Verify your A/C system type and capillary tube routing before ordering to confirm fitment.
