The SV9403M2303 is functionally identical across both brands

As the direct replacement for 71481101

Featuring a 6-inch insert for optimal placement within the airflow stream

Integrating a genuine Carrier 50HJ441155 prevents the cooling imbalances and premature component failure often associated with generic aftermarket housings

If the noise is caused by motor vibration or a loose mounting assembly

Trane RLY1634 Relay 322055-301 The SV9403M2303 is functionally identicalThe Trane RLY1634 Relay is an essential OEM service part for maintaining precise control over your HVAC system's operational timing. This 24V HVAC time delay relay is engineered specifically to manage startup sequences and provide short cycling protection, a critical factor in extending the life of compressors and high value mechanical components. Rated at 0. 5A, this 3 minute time delay relay ensures that internal system pressures stabilize before re