Description
Restore cabin cooling with the 2001000 A/C expansion valve. This 1.5-ton-capacity valve with o-ring seals is designed for Freightliner, Kenworth, Mack, Peterbilt, and Western Star trucks (2001–2021) with dual 8 inlet and outlet ports for symmetric cooling configurations.
Expansion Valve Type & Configuration
- Type: Block-Type Thermostatic Expansion Valve (TXV)
- Tonnage: 1.5-ton (universal mid-range A/C)
- Port Configuration: Dual 8 (1/2″) inlet and outlet ports
- Seal Style: O-ring (dynamic sealing)
- Mount: Symmetric design, no orientation dependency
- Refrigerant: R12 or R134a compatible
- Compatibility: Works across multiple OEM truck lines
Signs You Need a New Expansion Valve
- Visible frost or ice buildup on the evaporator inlet
- Weak A/C output despite adequate system pressure
- Compressor discharge pressure high, suction pressure low
- Erratic temperature control—rapid cycling between cold and warm
- Audible valve chattering or hunting during operation
- Refrigerant seeping from valve housing
Specifications
| Manufacturer | Kysor/Kysor-Cadillac (OEM supplier) |
|---|---|
| Part Number | 2001000 |
| OEM Numbers | 329-406, RD-5-6868-0, ABPN83-308011 |
| Component Type | Block-Type Thermostatic Expansion Valve (1.5-Ton) |
| Port Configuration | Dual 8 (1/2″ nominal) inlet and outlet |
| Seal Type | O-ring style |
| System Type | Universal block-type, dual-port symmetric |
| Refrigerant | R12 or R134a |
| Bulb Type | Thermostatic with external equalizer |
Cross References
This part is equivalent to the following part numbers:
- OEM Multi-Make: 329-406, ABPN83-308011
- Red Dot: RD-5-6868-0, RD-5-6868-1P, 71R8300, 71R8301
- Truck Air/Aftermarket: 12-0613A, 12-2012A, 12-2012G
- Also known as: 1600, 1600G, 1607, 125714, 450-6500, 520-1005, PTAC1600, 71R8340
Applications
Freightliner 320/FLD120/Classic, Kenworth T300/T600/T660/T800/W900, Mack 4700/4900/5700, Peterbilt 320/Pinnacle/T660/T800, Western Star 5700 (2001–2021). Universal compatibility with symmetric 8/8 port configuration. Verify truck A/C tonnage before ordering.
This universal valve is popular for truck A/C retrofits and replacements due to broad fitment across major manufacturers. Ensure correct superheat calibration for your specific application.
