QuadBoss 2012 Yamaha YFM400 Big Bear 4x4 IRS Rear Left Side Rugged Axle

If you're dealing with a worn-out or damaged rear axle on your 2007-2012 Yamaha YFM400 Big Bear IRS 4x4, this QuadBoss Rugged Axle is a solid option for getting your ATV back on the trail. It's built to be a direct replacement for your original equipment, meaning it should fit right in without any major modifications.

This axle is assembled with precision-ground components and a chrome moly steel axle bar, which are key for smooth operation and durability in your drivetrain. The joints come fully assembled and are packed with 3% Moly grease, helping to ensure they stay protected and lubricated. Low-profile stainless steel clamps are used to secure the boots, keeping dirt and moisture out. QuadBoss backs this axle with a two-year manufacturer's warranty against normal wear and tear, though it's important to note that the warranty is void if the vehicle is lifted, uses oversized tires beyond OEM design, or is used for racing.