<ul><li>9 amp charging system</li><li>Full pressure lubrication with oil filter</li><li>Pulse fuel pump</li><li>Overhead valve design (OHV) for cooler operation and long valve life</li><li>Includes exhaust</li><li>Dura-Bore cast iron cylinder sleeve for extended life</li><li>3300 max RPM</li><li>Electric start</li><li>For riding lawn mowers</li><li>Replaces engine model 33R877-0003-G1</li></ul>