Description
The 2001025 A/C expansion valve is built for Freightliner M2 106/112 (2001025). This MEI-manufactured component regulates refrigerant flow into the evaporator and is designed for Freightliner M2 Business Class 106/112 Models, 108 SD, and 114 SD Series trucks (2008–2023).
Expansion Valve Type & Configuration
- Type: Block-Type Thermostatic Expansion Valve (TXV)
- Tonnage: Capacity for mid-range A/C systems (block slim-line design)
- Port Configuration: 8 inlet, 12 outlet
- Mount Style: Flange mount with sealing washers
- Refrigerant: R134a compatible
Signs You Need a New Expansion Valve
- Frost at the evaporator inlet or suction line (valve starving refrigerant)
- A/C blows warm air or inconsistent cooling
- High head pressure readings; low suction pressure
- A/C system underperforms, especially under load
- Valve sticking or hunting (cycling on/off erratically)
Specifications
| Manufacturer | MEI (Mechanical Environmental Inc.) |
|---|---|
| Part Number | 2001025 |
| OEM Numbers | VCCT1001838L, T1000044L, T1000898P |
| Component Type | Block-Type Thermostatic Expansion Valve (TXV) |
| Inlet Port Size | 8 (1/2″ nominal) |
| Outlet Port Size | 12 (3/4″ nominal) |
| Mount Type | Flange mount, sealing washer style |
| Refrigerant | R134a |
| Bulb Type | Thermostatic with external equalizer |
Cross References
This part is equivalent to the following part numbers:
- OEM Freightliner: VCCT1001838L, T1000044L, T1000898P
- Red Dot: 71R8475
- Truck Air/Aftermarket: 12-0628A, 120628A
- Also known as: 1-2311, 1642, 3131243, 3411507, 450-6607, 520-1440, PTAC1642, RD-5-15296-0P
Applications
Freightliner M2 Business Class, 108 SD, 114 SD Series (2008–2023) with factory A/C. Verify OEM part number before ordering.
This is a thermostatic expansion valve that meters refrigerant flow based on evaporator outlet temperature. Proper charge and system equilibrium are critical for performance.









