
Lennox 46K12 Fan Blade
When you're out on a service call for a Lennox condenser, a vibrating or imbalanced fan can lead to premature motor failure. The Lennox 46K12 Fan Blade is the direct OEM replacement designed specifically for heavy-duty outdoor units. This 18-inch HVAC fan blade features a 4-blade configuration with a precise 24-degree pitch, engineered to maintain the original static pressure and cooling capacity of the system. Built with a 1/2 inch bore hub, it ensures a secure, slip-free fit on standard motor shafts.
This Lennox replacement part (also cross-referenced as R41141-001) utilizes a CCW (Counter-Clockwise) rotation facing the discharge side, pull-through airflow design. Fabricated by Revcor for Lennox, the 46K12 uses a fixed hub located on the opposite discharge side with riveted steel spider construction for long-term structural integrity. Whether you're working on GCS29X or 12GCS series Lennox condenser fan blade replacements, using this factory-spec component guarantees the correct CFM delivery without overloading the fan motor.
- OEM Precision: Genuine Lennox 46K12 ensures perfect balance, reducing mechanical stress on bearings.
- Optimized Airflow: The 18-inch diameter and 24-degree pitch are calibrated for maximum heat rejection.
- Broad Compatibility: Replaces multiple legacy part numbers including 20316402 and 46K1201.
- Rugged Build: Steel spider and riveted blades designed for high-ambient outdoor conditions.
Common Questions
What is the rotation direction for this blade?
The 46K12 is a Counter-Clockwise (CCW) rotation blade when viewed from the discharge side (the side the air is blowing toward).
Will this fit any 1/2 inch motor shaft?
While it fits a 1/2 inch bore, the pitch and diameter are specific to Lennox engineering. Always verify the 18" clearance and the 24-degree pitch requirement of the original unit to prevent motor overheating.
Does it include the set screw?
Yes, the fixed hub comes equipped with the necessary set screw for mounting directly to the motor flat.
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.
Lennox 46K12 Fan Blade
When you're out on a service call for a Lennox condenser, a vibrating or imbalanced fan can lead to premature motor failure. The Lennox 46K12 Fan Blade is the direct OEM replacement designed specifically for heavy-duty outdoor units. This 18-inch HVAC fan blade features a 4-blade configuration with a precise 24-degree pitch, engineered to maintain the original static pressure and cooling capacity of the system. Built with a 1/2 inch bore hub, it ensures a secure, slip-free fit on standard motor shafts.
This Lennox replacement part (also cross-referenced as R41141-001) utilizes a CCW (Counter-Clockwise) rotation facing the discharge side, pull-through airflow design. Fabricated by Revcor for Lennox, the 46K12 uses a fixed hub located on the opposite discharge side with riveted steel spider construction for long-term structural integrity. Whether you're working on GCS29X or 12GCS series Lennox condenser fan blade replacements, using this factory-spec component guarantees the correct CFM delivery without overloading the fan motor.
- OEM Precision: Genuine Lennox 46K12 ensures perfect balance, reducing mechanical stress on bearings.
- Optimized Airflow: The 18-inch diameter and 24-degree pitch are calibrated for maximum heat rejection.
- Broad Compatibility: Replaces multiple legacy part numbers including 20316402 and 46K1201.
- Rugged Build: Steel spider and riveted blades designed for high-ambient outdoor conditions.
Common Questions
What is the rotation direction for this blade?
The 46K12 is a Counter-Clockwise (CCW) rotation blade when viewed from the discharge side (the side the air is blowing toward).
Will this fit any 1/2 inch motor shaft?
While it fits a 1/2 inch bore, the pitch and diameter are specific to Lennox engineering. Always verify the 18" clearance and the 24-degree pitch requirement of the original unit to prevent motor overheating.
Does it include the set screw?
Yes, the fixed hub comes equipped with the necessary set screw for mounting directly to the motor flat.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
When you're out on a service call for a Lennox condenser, a vibrating or imbalanced fan can lead to premature motor failure. The Lennox 46K12 Fan Blade is the direct OEM replacement designed specifically for heavy-duty outdoor units. This 18-inch HVAC fan blade features a 4-blade configuration with a precise 24-degree pitch, engineered to maintain the original static pressure and cooling capacity of the system. Built with a 1/2 inch bore hub, it ensures a secure, slip-free fit on standard motor shafts.
This Lennox replacement part (also cross-referenced as R41141-001) utilizes a CCW (Counter-Clockwise) rotation facing the discharge side, pull-through airflow design. Fabricated by Revcor for Lennox, the 46K12 uses a fixed hub located on the opposite discharge side with riveted steel spider construction for long-term structural integrity. Whether you're working on GCS29X or 12GCS series Lennox condenser fan blade replacements, using this factory-spec component guarantees the correct CFM delivery without overloading the fan motor.
- OEM Precision: Genuine Lennox 46K12 ensures perfect balance, reducing mechanical stress on bearings.
- Optimized Airflow: The 18-inch diameter and 24-degree pitch are calibrated for maximum heat rejection.
- Broad Compatibility: Replaces multiple legacy part numbers including 20316402 and 46K1201.
- Rugged Build: Steel spider and riveted blades designed for high-ambient outdoor conditions.
Common Questions
What is the rotation direction for this blade?
The 46K12 is a Counter-Clockwise (CCW) rotation blade when viewed from the discharge side (the side the air is blowing toward).
Will this fit any 1/2 inch motor shaft?
While it fits a 1/2 inch bore, the pitch and diameter are specific to Lennox engineering. Always verify the 18" clearance and the 24-degree pitch requirement of the original unit to prevent motor overheating.
Does it include the set screw?
Yes, the fixed hub comes equipped with the necessary set screw for mounting directly to the motor flat.
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.












