Teir 4i Cummins QSL 8.9L diesel, AC/Heat, Standard: 39,000 lb Counterweight, 36 ft - 59 ft manual (Non Hydraulic) offsettable bi-fold swingaway extension, One 26 ft and one 19.7 ft extension inserts, Auxiliary boom nose, 100 USt hook block, 10 USt headache ball,