Description
Swap in the 1801066 evaporator on Century Class and get back on the road. This evaporator features an aluminum tube/fin core design (style 6657) with slim-line refrigerant fittings, commonly used on 2003 model year vehicles with front-cab A/C units.
Signs You Need a New Evaporator
- Reduced cooling capacity or weak A/C airflow
- Refrigerant leaking from the evaporator housing
- Musty or moldy odor from cabin air vents
- Visible corrosion or frost on the core
Specifications
| Manufacturer | MEI |
|---|---|
| Part Number | 1801066 |
| OEM Number | BOA85-436-71-009 |
| Style | 6657 |
| Core Type | Aluminum Tube/Fin |
| Core Dimensions | 10 3/8″ L x 10″ W |
| Fitting Type | Slim-line |
Cross References
This part replaces or is equivalent to the following part numbers:
- OEM Freightliner: 05-0608, 125592, 27-50019, 400-4704
- MEI: PTAC6657
- Also known as: BOA80-436-71-009, H543671009.00, NA15300, 44135
Applications
This evaporator fits:
- Freightliner Century Class 2003
- Freightliner Columbia 2003
- Main cab evaporator unit (slim-line fittings)
Verify your A/C unit’s fitting type and configuration before ordering to confirm fitment.









