This is an original FORD marked cam shaft. We picked up a pallet of these and have carefully gone through all of them. These were all marked serviceable on the master carton. Yes, they are used but have been marked as re-usable.The only wear I have found, is a little discoloration on the fuel pump lobe. These have a ton of nasty old cosmoline on them that has preserved them. This cam is only for use with the 134L flat head engine with chain driven timing. This would be the WWII MB, GPW, GPA, and very early CJ2A. The item "Jeep Willys FORD GPW 134L chain timed cam shaft F Marked serviceable G503" is in sale since Wednesday, October 25, 2017. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Other Parts". The seller is "wcfr4" and is located in Chickamauga, Georgia. This item can be shipped worldwide.