Restore proper airflow through your cooling system with this 1976-80 Square Body Chevy & GMC Truck Radiator Lower Fan Shroud, SB without AC. Designed for trucks equipped with 305 or 350 small block engines without factory air conditioning, this reproduction shroud matches the original GM design for proper fit, appearance, and cooling performance.
The lower fan shroud works together with the upper shroud to surround the engine cooling fan, helping direct air through the radiator instead of allowing it to escape around the fan. This improves cooling efficiency, especially during low-speed driving, idling, and warmer weather when proper airflow is essential.
Over time, original fan shrouds can become brittle, cracked, broken, or go missing altogether. A damaged or missing lower shroud can reduce the effectiveness of your cooling system and contribute to higher engine operating temperatures. Replacing it helps restore the factory cooling system's intended airflow.
Manufactured from high-quality injection molded ABS plastic, just like the original, this lower fan shroud offers excellent durability and a factory style appearance. It is designed to install using the original mounting locations without modifications.
Key Features
- Fits 1976–1980 Chevy & GMC Square Body pickups, Blazers, Jimmys, and Suburbans
- Designed for 305 and 350 small block engines without factory AC
- Fits radiators measuring 28 3/8" x 17"
- Correct 10.75" fan opening radius
- High-quality injection molded ABS plastic construction
- Reproduced to match the original GM design and fit
- Helps direct airflow through the radiator for efficient engine cooling
- Replaces cracked, broken, or missing original lower fan shrouds
- Installs using factory mounting locations
- Replaces GM part numbers 470903 and 14016541
- Mounting hardware not included
Important Fitment Information
This lower fan shroud is designed specifically for trucks equipped with a 28 3/8" x 17" radiator and 305 or 350 small block engines without air conditioning.
Will NOT fit vehicles equipped with heavy-duty cooling systems.
We recommend verifying your radiator dimensions and cooling system configuration before ordering, as different radiator and fan shroud combinations were available from the factory.
Installation Tip
When replacing your lower fan shroud, inspect the upper fan shroud, radiator mounting hardware, and radiator support bushings for damage or wear. Making sure both shroud sections are properly installed helps maintain the correct airflow through your radiator and keeps your Square Body cooling system operating as intended.
Don't forget 1976-80 Square Body Chevy & GMC Truck Radiator Upper Fan Shroud, SB and 1973-80 Square Body Chevy & GMC Truck Lower Radiator Fan Shroud Clips, Pair
- Year Range:
- 1976, 1977, 1978, 1979, 1980
