Reznor 43425 Venter Blower Wheel 4 Inch 0.25 Inch Bore

Product Description

The REZNOR 43425 is a venter blower wheel designed as a direct replacement component for REZNOR heating equipment. The blower wheel measures 4 inches in diameter with a 0.25 inch bore, sized to fit the venter motor assembly in compatible REZNOR units. The venter, also called an induced-draft blower, is responsible for pulling combustion gases through the heat exchanger and exhausting them safely out of the flue. This wheel is the rotating impeller that drives that airflow. HVAC technicians working on REZNOR unit heaters, infrared heaters, or duct furnaces will encounter this component during routine maintenance or venter motor replacement.

This blower wheel is suited for residential and commercial REZNOR heating applications where the venter assembly requires restoration of proper draft and combustion exhaust performance. It is typically installed as part of a venter motor rebuild or full assembly replacement. Restoring the correct wheel ensures the system maintains proper combustion airflow, which is critical for safe and efficient operation of gas-fired heating equipment.

Key Features

• 4 inch diameter wheel matched to REZNOR venter motor assemblies
• 0.25 inch bore for secure shaft fitment
• OEM REZNOR part for accurate dimensional and performance match
• Restores proper induced-draft airflow in gas-fired heating units
• Direct replacement reduces diagnostic and fitment uncertainty on the jobsite

Compatibility

Designed as an OEM replacement venter blower wheel for compatible REZNOR gas-fired heating equipment. Refer to the equipment model number and parts documentation to confirm fitment before installation.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with gas-fired heating equipment. Shut off gas supply and disconnect electrical power to the unit before beginning any service on the venter assembly. Ensure the wheel is fully seated and secured on the motor shaft before reassembly, and verify there is no contact between the wheel and the venter housing. Follow all applicable local codes and REZNOR service documentation during reinstallation.

Technical Specifications

• Wheel Diameter: 4 inches
• Bore Size: 0.25 inches
• Component Type: Venter Blower Wheel

Standard Information

• Brand: REZNOR
• Manufacturer Part Number: 43425