Carrier 342890-75101 Housing Kit

The Carrier 342890-75101 Housing Kit is a critical OEM replacement assembly designed to restore factory-spec airflow in residential fan coil units and central air systems. This comprehensive blower housing and wheel kit integrates a precision-balanced centrifugal impeller within a high-durability housing, ensuring optimal static pressure and volumetric flow rates across heating and cooling coils. As a direct replacement for legacy part numbers including 316803-773 and 331551-780, this assembly eliminates common mechanical noise and vibration issues caused by warped wheels or compromised housing integrity. When diagnosing restricted airflow or unit imbalance in Carrier FB4 units, swapping the entire housing and wheel ensures the motor operates within its designed load parameters, preventing premature winding failure. This HVAC blower assembly arrives as a complete field-installation kit, featuring the calibrated housing, rotating wheel, and necessary mounting hardware to minimize downtime and ensure secondary component compatibility during critical repairs.

Key Benefits for Technicians

• Precision-Balanced Impeller: Reduces shaft vibration and extends the service life of the blower motor bearings.
• Full OEM Compatibility: Verified fit for popular Carrier, Bryant, and Payne models including the FB4CNF018 and FZ4ANP024 series.
• Enhanced Airflow Efficiency: Restores factory-calibrated CFM output to ensure proper heat exchange and system performance.
• Direct Replacement Logic: Facilitates a seamless swap for discontinued carrier parts such as 331551-756 and 331551-786.

Common Questions

Does this kit include the mounting hardware for the housing?
Yes, the Carrier 342890-75101 kit typically includes the replacement housing, the blower wheel, and five mounting screws (342893-201) to facilitate a complete installation.

What are the physical dimensions of the assembly?
This housing kit measures approximately 16.5 inches in length, 14.25 inches in height, and 8.5 inches in width, fitting standard 2.0-ton nominal capacity units.

How do I verify if this fits my specific air handler?
Standard practice requires matching the model and serial number of your fan coil unit. This part is a common fit for FB4C and PF4M series units; always verify against the manufacturer’s parts list.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.