K&N Custom Air Filter KE-3971 type-starter refer to OEM T1300021

refer to OEM T1300021

If there is any doubt

All Balls spacers provide a smooth

Pre-installed OE style bearings included

K&N Custom Air Filter KE-3971 type-starter refer to OEM T1300021K&N off road replacement air filters are ideal for extended use in dirty and dusty off road riding and provide clean carburetion even at high altitude. Generally, no jet changes are required with just a K&N filter element. K&N replacement air filters are washable and reusable and provide high air flow with excellent filtration. Features: Designed to provide increased horsepower and acceleration. Pleated cotton media provides a large filtration area