Generac 5618 Extreme Cold Weather Kit for 35 kW &amp; 45 kW Standby Generators with 1800 RPM 4.2L Engine<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Includes the appropriate block heater， step by step installation instructions and all necessary mounting hardware</li><li>See an authorized dealer to properly install this item</li><li>Operates with Cold Weather Kit model 5631</li><li>For Generac 48 kW automatic standby generators</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41ChgBy7POL.jpg" noproxy>