Flex-a-lite 284 '01-'05 Chevy Duramax Fan Overall dimensions of 31 7/8" x 17" x 4 1/2" Flows 6,000 cfm (cubic feet per minute) at 36 amps of current draw Bolts to O.E. mounting points of '01-'05 Chevy and GMC Duramax diesels Comes with Variable Speed Controller One year manufacturer warranty