A misfiring engine or loss of spark could simply be a bad spark plug. Replace it quickly and easily with this spark plug you would find at the dealer but not paying the extra cost. Genuine NGK spark plug. Replaces Polaris part number 3070172 . Sold EACH. Fits the following models 2004-05 ATP 330 2004-05 ATP 500 2011-14 Hawkeye 400 2004-06 Magnum 330 2009-13 Trail Blazer 330 2005-13 Trail Boss 330 2000-02 Xpedition 325 2000-02 Magnum 325 1998-12 Scrambler 500 2008-14 Sportsman 400 2006-07 Sportsman 450 2002-13 Sportsman 500 (ALL) 2009-14 Sportsman 550 (ALL) 2010-14 Ranger 400 2006-13 Ranger 500 PLEASE VISIT OUR EBAY STORE FOR THE FULL LINE OF POLARIS SPORTSMAN, MAGNUM, SCRAMBLER, AND RANGER PARTS We make every attempt to ensure every items fitment is accurate. We do the testing on each item before its listed for sale to ensure fitment and quality. Items may fit multiple years and models listed. Returns are subject to 15% restocking fee.