Uni Filter 19-24 Yamaha Wolverine X2 /X4 / 18-24 Wolverine X4 SXS Air Filter - NU-3271ST

For over 50 years, Uni Foam Air Filters have been unsurpassed in both engine protection and overall performance. Their unique two-stage design produces more horsepower and more torque than any other air filter for your ATV.