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    Strengthen one of the hardest-working areas of your machine with the S3 Power Sports Rear Frame Stiffener for the Can-Am Defender HD11. Designed to reinforce the lower Rear frame and support the A-arm mounting points, this upgrade helps your Defender HD11 handle rough terrain, heavy loads, and aggressive driving with more confidence. Built from 10 gauge plate steel, it adds real structure where the chassis needs it most without overcomplicating the install.

    This Can-Am Defender HD11 Rear Frame Stiffener is built to reduce flex in the lower Rear frame area and protect critical suspension mounting points. Whether you are trail riding, working, or pushing your Defender HD11 through tough conditions, this Rear frame reinforcement helps maintain alignment and long-term durability. The S3 Power Sports Rear Frame Stiffener for Can-Am Defender HD11 is a direct solution for riders looking to strengthen the front end and keep their suspension working the way it should.

    Part Number(s): S3355
    Manufactured from 10 gauge plate steel
    Reinforces lower Rear frame area
    Supports A-arm mounting points
    Durable powder coat finish
    Made in the U.S.A. 
    Lifetime Structural Warranty 

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      California Prop 65 Warning

      ⚠️ WARNING: This product & Others sold on this website may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit https://www.p65warnings.ca.gov/