Fits the following Honda ATV models: 1999-2008 TRX400EX, 2009-2014 TRX400X. Features a 4140 chromoly steel bar for a higher tensile strenth and more durability. Outer spline count: 24

• Middle spline count: 39
• Replaces OEM # 42310-HN1-000, 42310-HN1-A40. Made as a direct replacement. No modifications necessary.

This product is designed to fit the following units:

2008 Honda Sportrax 400 TRX400EX 2x4
2007 Honda Sportrax 400 TRX400EX 2x4
2006 Honda Sportrax 400 TRX400EX 2x4
2005 Honda Sportrax 400 TRX400EX 2x4
2004 Honda Sportrax 400 TRX400EX 2x4
2003 Honda Sportrax 400 TRX400EX 2x4
2002 Honda Sportrax 400 TRX400EX 2x4
2001 Honda Sportrax 400 TRX400EX 2x4
2000 Honda Sportrax 400 TRX400EX 2x4
1999 Honda Sportrax 400 TRX400EX 2x4
2014 Honda TRX400X 2x4
2013 Honda TRX400X 2x4
2012 Honda TRX400X 2x4
2009 Honda TRX400X 2x4