Aluminum Fan Shroud 20-3/4x18-3/4 Single 16

The Aluminum Fan Shroud 20-3/4x18-3/4 Single 16 from ALLSTAR PERFORMANCE is purpose-built for cooling system efficiency in custom automotive applications. This electric fan shroud directs airflow precisely through the radiator, maximizing cooling performance while minimizing parasitic drag on the engine. Engineered for builders and enthusiasts who demand reliable thermal management in street rods, race cars, and high-performance restorations, this shroud bridges the gap between stock cooling inadequacy and sophisticated aftermarket thermal solutions.

Constructed from lightweight aluminum, this fan shroud measures 20.75 inches wide by 18.75 inches tall, accommodating most single 16-inch electric fans while keeping overall system weight minimal. Aluminum construction provides superior heat dissipation compared to plastic alternatives and resists warping under sustained thermal cycling—critical for high-output engines or prolonged track use. The natural finish allows for straightforward painting or coating integration into your custom engine bay, and the single-fan design simplifies installation while delivering concentrated cooling capacity where it matters most.

This shroud is ideal for builders integrating modern electric cooling systems into vintage platforms or upgrading existing radiators with contemporary fan technology. The 3.4-pound weight makes it suitable for both street and competition builds where mass reduction contributes to handling balance. Installation works best with radiators in the 19–21 inch width range and pairs seamlessly with standard 16-inch electric fan units; verify your fan diameter and radiator dimensions before ordering to ensure optimal fit and sealing.