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Derale Heavy-Duty Flex Fans

4.71 out of 5 stars 121 Customer Reviews

Derale heavy-duty flex fans generate maximum airflow at low rpm and decrease resistance at high rpm. They also improve performance and provide better fuel economy. The OEM-quality, heavy-duty steel hubs, aerospace-grade stainless steel blades and rated up to 10,000 rpm create a durable fan that lasts. For top-quality underhood cooling accessories, trust the expertise of Derale Performance.

Results 1 - 8 of 8

Fan, Flex-Type, Heavy-Duty, Clockwise, 15 in. Diameter, Stainless Steel Blades/Steel Hub, Universal, Each

Part Number: DER-17015

4.69 out of 5 stars ( 26 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Fan, Flex-Type, Heavy-Duty, Counterclockwise, 18 in. Diameter, Stainless Steel Blades/Steel Hub, Universal, Each

Part Number: DER-17618

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Fan, Flex-Type, Heavy-Duty, Clockwise, 19 in. Diameter, Stainless Steel Blades/Steel Hub, Universal, Each

Part Number: DER-17019

4.44 out of 5 stars ( 18 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Fan, Flex-Type, Heavy-Duty, Clockwise, 18 in. Diameter, Stainless Steel Blades/Steel Hub, Universal, Each

Part Number: DER-17018

4.79 out of 5 stars ( 14 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Fan, Flex-Type, Heavy-Duty, Clockwise, 17.25 in. Diameter, Stainless Steel Blades/Steel Hub, Universal, Each

Part Number: DER-17017

4.78 out of 5 stars ( 23 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Fan, Flex-Type, Heavy-Duty, Counterclockwise, 17 in. Diameter, Stainless Steel Blades/Steel Hub, Universal, Each

Part Number: DER-17617

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Fan, Flex-Type, Heavy Duty, Counterclockwise, 19 in. Diameter, Stainless Steel Blades/Steel Hub, Universal, Each

Part Number: DER-17619

4.47 out of 5 stars ( 15 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Fan, Flex-Type, Heavy-Duty, Counterclockwise, 14.75 in. Diameter, Stainless Steel Blades/Steel Hub, Each

Part Number: DER-17615

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

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