Year – 2009 350hours since SMOH 4800 approximate hours prior to overhaul – (Overhaul done by certified Dealer) Serial Prefix – RNC Original Engines for Boat – (1) Owner Rebuild done Last Year All updates done on them. This model C32 did piston update – had a 2 part piston in Original C32s (some of them developed problems with those pistons) When CAT developed the 1900hp engines they developed a one piece cast piston That also became the updated piston for 1800hp units when needing replaced. 1-2 injectors had started scoring cylinders and said it was time to go ahead and rebuild them / update them with all new style pistons etc.. Have engine logs as well if needed. All maintenance was done with same group that did the full overhauls. Pulled all oil samples when boat got in the yard that is putting new C32s (2400hp) in place. Pulled all ECM current data.