Cummins L9 engine with true Jake brakes. Has 150k on the engine was pulled out of a running driving truck. No blow by and ran when pulled. Engine will need an ecm and high pressure fuel pump other than those items it has everything else. Also have a few things that go with the engine. Like front cover, water pump, main bearings and few other items and gaskets. Was planning to throw this in a rat rod but plans have changed and downsizing due to moving.