Camshaft is for a 99 1LW 3406e 550hp caterpillar but will fit the 3ts ,5ek ,6nz engine models as well the cam is new but been on our parts shelf for several years the box had fallen apart and we painted it black years ago to prevent corrosion it will be guaranteed to be in perfect condition. I took 3 pics of the part # but if you have a problem reading them you can email me and i Will write them down and email them back to you if you have priced a new one you'll know it's a steal for what I'm asking