<strong>Yahoo Message Number: 40529</strong>Changed my filters several years ago, used Cummins part # 84101B, paid about $8/filter. Couldn't find that part #, called Cummins and NAPA, no luck. Called CC parts, they gave me another part #, 84220A, my price from CC, about $17. Went to NAPA, their cross to their filter about $70. Cummins does not show the 84220A as a valid part #. <br/>Looked...