Aloha---- I now have lots parts for the 4.2 Liter D-Tronic engine I no longer need. I'm hoping I can help some of you out with any problem you might have with your motor. Shop for working, recycled parts for Mercruiser/Cummins 4.2 Liter D-Tronic engines. The parts are for the VM Motori model. All the items have been in service but work. Injector pumps, pistons, injectors, fuel lines, starter, electric harnesses, valve covers, aleternator, heads, sensors, gears---all kinds of items. Check the next page for a partial list.