QuadBoss Rear IRS Knuckle Kit For 07-12 Yamaha YFM400FB - Rear suspension knuckle kit for Yamaha YFM400FB

Rear suspension knuckle kit for Yamaha YFM400FB

• UPC: 887337139463

The QuadBoss Rear Independent Suspension (IRS) Knuckle Kit is engineered specifically for the 2007-2012 Yamaha YFM400FB Big Bear 4x4 IRS models. This kit includes self-lubricating acetal nylon bushings for superior wear resistance and performance. All metal components are case-hardened and plated to resist corrosion and extend the life of your suspension system. Designed for easy installation and long-term durability, this IRS knuckle-only repair kit is an essential upgrade or replacement for your ATV's rear suspension.