This is a Brand New surplus Cat C9 Acert engine which may fit in following machines Cat 330C, 330CL,330D, 330DL, 336D, 336D2, CT610, CT660, CT660S, CT630, D10R, D6R, 160M2, 532, D6T, D7E, D7R, D6R LGP, 814F Generator, 980C, 973C, Astec KPI-JCI Jaw plant, McCloskey I44 R, McCloskey J45 Soilmec rotary rig SR60, Atlas Copco XRHS 800.