Description
Engineered for Freightliner Aux Unit, the 2001023 expansion valve delivers OEM-spec performance. Designed as a secondary cooling unit with slim-line block construction and flange mount. Features 6 8 inlet ports and is commonly used in sleeper cab or rear auxiliary A/C systems on Freightliner 122SD and Coronado models.
Signs You Need a New Expansion Valve
- Weak cooling in sleeper or rear cabin area
- Frost on auxiliary evaporator coil
- Uneven temperature distribution
- Refrigerant line icing
Specifications
| Part Number | 2001023 |
|---|---|
| OEM Reference | BOAN8119001, HDN8119001 |
| Body Style | Block type, slim-line, flange mount |
| Inlet Port | 6, 8 |
| Application | Auxiliary rear unit |
| Fitment | Freightliner 122SD, Coronado 132 (2012–2021) |
Cross References
This part replaces or is equivalent to the following part numbers:
- Parker: PTAC1633
- Also known as: 12-0626A, 125762, 1633, 327308, 39268, 39486, 450-6604, 520-1430, N8119001, M672
Applications
This block-type expansion valve fits:
- Freightliner 122SD auxiliary rear unit (2012–2021)
- Freightliner Coronado 132 auxiliary cooling (2012–2021)
- Sleeper cab secondary A/C systems
Verify application (main vs. auxiliary) and port configuration before ordering.









