ALL13000 blower motor mounts inside cockpit or in decking to provide forced, filtered air to the driver. Spun aluminum cover prevents damage to filter assembly. ALL13001 is most commonly mounted inside the driver compartment on vehicles with windows. A large hose such as ALL42150 can be routed to the motor from outside of the car or fastened to a plastic duct such as ALL42143 for fresh air. Both motors are two-speed 12 volt.