Opel diesel straight-4 2.0 L A 20 DTJ engines

Opel diesel straight-4 2.0 L A 20 DTJ 129 HP at 4000 RPM, 300 N⋅m at 1750 RPM engine

It's an 1956 cc (1.72 UK qt.) internal combustion reciprocating Inline 4 engine. It has bore/stroke ratio of 83 mm × 90.4 mm (3.27 in × 3.56 in). This engine was rated 96 kW (128.74 hp) at 4000 rpm and 300 N⋅m (221.27 lbf⋅ft) of torque at 1750 rpm.