The D-2/45 has made its home with Pecan growers all over the United States, providing unparalleled performance, the D-2/45 has lead the industry with big power, big performance, and the structural design to last for the long-haul providing years and years of service. The heart of the D-2/45 is a 6.8 liter 300 horse power Final Tier 4 John Deere diesel engine which propels twin 45" steel axial flow fans. The D-2/45 has a proven track record of performance even in the deep south of Georgia where the trees can reach up as high as 120 feet! Quality design, engineering, craftsmanship, and service, this is Air-O-Fan's foundation and we shoot for the moon! Thank you for your valued support.