- Large 19-inch blade diameter delivers high airflow draw across radiator surfaces
- Rigid non-flex steel blades eliminate pitch deflection at top engine speeds
- 4-blade profile balances thermal cooling performance with low engine drag
- Protective black powder coating resists fuel, oil, and rust damage
- Slotted mounting hub ensures universal compatibility with v8 water pumps
Built for maximum radiator airflow, the Cal Custom 19-inch 4-blade rigid steel non-flex mechanical fan features heavy-gauge steel blades coated in a black powder finish. It maintains precise pitch angle and maximum air suction under high engine speeds. Its universal slotted hub fits standard V8 water pump mounting patterns, making it a heavy-duty cooling component for large engine bays, muscle cars, and race setups.