Facility Enhancements > Pedal Karts XL 4 Rear Axle Hardware Kit Details Related Articles Gallery The XL 4 Rear Axle Hardware Kit is a replacement part for Prime Karts XL 4 pedal kart models. $10 XL 4 Rear Axle Hardware Kit quantity Add to cart Questions? Contact Us Others also viewed… Splashpad® Playable Fountains Spraypoint® Water Journey™ You may also like… Soft-Contained Play Units Racer Front Spoiler Outdoor Playgrounds Racer Inner Tube