The Porsche Junior 109 G (V) tractor has a single-cylinder engine, with the vehicle having a displacement of 875 cm³. Since the Porsche-Diesel Junior 109 G (V) is the youngest Porsche model of this type, it exerts a force of up to 11 KW (15 hp).

The Junior 109 G (V) is the latest model of this type.

 In January 1961, Porsche-Diesel came onto the market with the Type 109 G. Its structure corresponded to the type 108 V, but its engine had a cylinder bore of 98 mm. The tractor was only offered in this version, but could also be supplied with an oil-hydraulic clutch on request. Also available was the long version with oil hydraulic clutch and the new engine.

For the 109 there were versions J and K, for rear wheels size 8-24, and L and M for size 9-24.

Engine and dashboard hood changed, from tractor no. G 109 14794 partly and 14989 continuously; from engine no. 1267: Fit of the cylinder head on the cylinder increased from 112 mm to 113 mm