Spec Cast 1:16 Farmall 544 Gas Narrow Front Tractor with Four Row Cultivator Diecast Model 647 ZJD1709 This Farmall 544 Gas Narrow Front Tractor with Four Row Cultivator is red & features working steering, wheels. It is made by Spec Cast & is 1:16 scale (approx. 20cm / 7.9in long).