Exmark PNS651KA483 Used 48" Pioneer S-Series Zero-Turn Mower Kawasaki FR651V. Exmark mowers deliver much more than a zero turning radius and maneuverability. They deliver more of what your work demands: premium performance, quality, reliability, and digital diagnostic tools. We have been at the top of lawn care and mowing technology for over 30 years with our constant innovation and evolved commercial zero-turn mowers. We set our bar high so that you can get the best value from a commercial-grade mower that is high-performing, ergonomic, and, remarkably enough, easy to maintain.