- Allows the cooling fan to be switched on before the factory temperature threshold is reached
- Helps reduce engine temperatures during extended idling, stop-and-go traffic, and hot weather riding
- Plug-and-play harness installs inline with the factory wiring, no cutting or splicing required
- Retains full OEM automatic fan operation while adding manual override capability
- Weather-resistant toggle switch provides reliable operation and convenient rider control
- Popular upgrade for riders in hot climates, heavy traffic, or staging lanes who want greater control over cooling system operation
Note: First-generation (1999-2007) Hayabusas are known to build heat during prolonged idling and slow-moving traffic. A common solution is adding a second cooling fan to improve low-speed airflow. This manual fan override provides a simpler, lower-cost alternative for many riders by allowing the factory fan to be switched on before the OEM temperature threshold is reached while retaining full OEM automatic operation. Riders who frequently encounter extreme heat or prolonged idling may still benefit from a second fan.
