You can find used Aircraft Tractor on Wotol
The main manufacturers of Aircraft Tractor are Douglas, Tug, Stewart & Stevenson, Hough, Harlan, Schopf, United, Kalmar, Mulag, TLD, FMC, NMC - Wollard, Charlatte, Clark, Godlhofer, Sovam, Kamag.
The main model are T800, F246, AM150, DC12, TMX100, K250, F396, TMX-400-300, DC12-44, Tow-Bear 35/22-280, R7, MA 50, GT 1628, HTA 40.
HS code 8709 (Works trucks, self-propelled, not fitted with lifting or handling equipment, of the type used in factories, warehouses, dock areas or airports for short distance transport of goods; tractors of the type used on railway station platforms; parts of the foregoing vehicles).
HS code 8709 11 00 Electrical from (Works trucks, self-propelled, not fitted with lifting or handling equipment, of the type used in factories, warehouses, dock areas or airports for short distance transport of goods; tractors of the type used on railway station platforms; parts of the foregoing vehicles).