Upgrade your Unimog U1700 with our Fast Ratio Fan Pulley Kit for optimal cooling efficiency. Made with high-quality aluminum, this kit replaces the factory steel pulley to increase air flow and reduce cylinder head temperature on average of 5 degrees. Perfect for off-road enthusiasts and those looking to improve their vehicle's performance, our kit is designed to work seamlessly with any intercooler system mounted to the factory radiator. Don't let overheating put a damper on your adventures - upgrade to our Fast Ratio Fan Pulley Kit today. Features & Benefits - Increased 20% air flow for cooling efficiency of factory radiator - Cooler engine temps on hot days - Denser charged air from factory radiator mounted intercooler systems - Lighter weight aluminum pulley - Comes with correctly sized v-belt for new pulley to eliminate guesswork