Good used engine pulled out of a good running 2003 ZL 600 EFI ESR. Mileage and compression can be seen in images. Sled ran and drove at time of removal, went on a couple hundred mile UP trip with it and didn’t skip a beat. Fires right up, runs strong, stays cool. Includes only what is shown in the first set of images. Intake boots showed cracking, not all the way through but recommend replacing. Good swap candidate for older non-APV sleds. I have all the other supporting parts if needed, message me if you’re interested in them. Will fit other years and models, buyer’s responsibility to verify fitment.