Eicher 600 er - Reihe

The letters distinguish track width and version, and the register makes the logic visible in the widths: the K models (635 K, 642 K, 645 K) are the narrowest at 905 to 960 mm, the V models (648 V, 656 V, 666 V) measure 983 to 1,025 mm, the P models (656 P, 666 P, 680 P) 1,284 to 1,360 mm; an appended A always means four-wheel drive (642 K versus 642 KA, 656 P versus 656 PA) and makes the machine wider and about 150 kg heavier, and the B in PB and PAB marks an even wider version at 1,341 mm. The models run from 1,963 to 3,927 cm³ with two to four air-cooled cylinders, 56 to 80 hp where output is recorded, unladen weights from 1,510 to 2,825 kg, lengths from 2,495 to 3,450 mm and heights from 1,920 to 2,325 mm.

The air-cooled Eicher engines with individual cylinders on a common crankcase are regarded as robust and easy to repair; a cylinder can be replaced individually, and a radiator cannot leak because there is none.

On used tractors, the condition of cylinders and cooling blower, the gearbox, the steering on narrow-track models and the front axle on four-wheel-drive tractors count; parts supply runs through specialists and an active club scene.