This is a brand new A-Arm Bearing Kit that is made to OEM standards and Specs. By replacing your old A-Arm bearing kit you will improve your ATV's performance and suspension. This kit includes everything you need to refurbish your A-Arm. You will need one kit for each A-Arm. Manufactured by Factory Spec Includes everything pictured Made in Taiwan Fits the Upper OR Lower A-Arm of the following models 2000 2004 Yamaha 400 Big Bear 2x4 YFM400 2000 2006 Yamaha 400 Big Bear 4x4 YFM400F 2007 2012 Yamaha 400 Big Bear 4x4 IRS YFM400FB 2007 2008 Yamaha 400 Grizzly 4x4 YFM400FG 2000 2001/2003 2004 Yamaha 400 Kodiak 2x4 YFM400A 1993 1999 Yamaha 400 Kodiak 4x4 YFM400FW 2000 2006 Yamaha 400 Kodiak 4x4 YFM400FA