Cummins Euro 6 (2012)

©Terry O’Neill

DE20128 is the only Euro 6 engined E200 Dart. Sometime in late 2012, when the bus was only two years old, it received a Euro 6 Cummins engine. No others buses were converted, leaving DE20128 unique in RATP’s fleet and in the rest of the UK.

From the outside, the rear is what sets it apart visually. There is an extra set of grills on the engine cover, and a Euro 6 exhaust, which has some unpainted aluminium surrounding it. This is due to the fact that Euro 6 exhausts are able to get hot enough for paint to peel off!

It was also reportedly fitted with a GKN Gyrodrive flywheel too.