Browning BX31 Belt 30067439-890 Safety Compliance: Designed to meet

Safety Compliance: Designed to meet rigorous safety standards for forced-air combustion systems

5" and 5-1/8") to match factory airflow specs

providing centralized logic for seasonal transitions

and 16C21M-4101 models

Manual Override Capability: The manual operator (MO suffix) provides critical control during electrical maintenance or emergency power loss

Browning BX31 Belt 30067439-890 Safety Compliance: Designed to meetThe Browning BX31 is a high performance, cogged V belt designed for demanding HVACR applications where standard wrapped belts often fail due to heat or small sheave diameters. This BX section belt features a 21 32 inch width and a 34 inch outside circumference, utilizing a Gripnotch design that significantly increases flexibility. By using a notched V belt profile, the BX31 reduces bending stress as it wraps around the pulley, allowing it to run