The Derale Flex Fan Performance - 19317 is a high-performance cooling fan designed for specific applications where space is limited and a reverse rotation fan is required. 

Key Features:

• High-Performance Flex Fan: This fan is designed for high-performance cooling, making it ideal for demanding applications. It features six stainless steel blades that are both durable and efficient at moving air to maintain optimal engine temperatures.
• Rated for High Engine Speeds: The fan is rated for engine speeds of up to 8,000 RPM, making it suitable for high-performance and racing applications where the engine operates at elevated speeds. This high RPM rating ensures that the fan can effectively cool the engine under demanding conditions.
• Reverse Rotation Design: This fan is designed for reverse rotation, which means it rotates in the opposite direction compared to standard fans. This design is beneficial for applications where the configuration requires a reverse rotation fan.
• Black Powder-Coated Hub: The fan's hub is black powder-coated, providing a protective finish that enhances the fan's durability and resistance to corrosion.
• Space-Efficient Design: The Derale Flex Fan Performance - 19317 is a great choice for applications with limited space between the radiator and water pump. Its compact design allows it to efficiently fit into tight engine compartments.

Derale Flex Fan Performance - 19317 is a high-performance cooling fan designed for reverse rotation applications with limited space between the radiator and water pump. With its stainless steel blades, high RPM rating, reverse rotation design, and black powder-coated hub, it's an excellent solution for maintaining engine temperatures in demanding conditions while fitting in space-constrained engine bays.