Review on Derale 18217 17-inch High Output Radiator Fan in Black by Yousef Clark

The fan was very easy to install but I had many problems with the Derale dual fan controller. I bought for my 1973 Dodge Dart which has 500hp. If I knew what I know now, I wouldn't spend money on a controller. If you drive a car with a lot of horsepower, just connect both fan wires together and you have a switch. I couldn't return the controller due to POOR customer service from 4Wheelonline. Terrible company to work with even when Derale customer service said they would authorize a return and they did nothing. Derale's customer service was a pleasure to work with and had no problems. My suggestion: If your product is from 4wheelonline, DO NOT BUY IT.