These are our Perkins 400 Series industrial diesel power unit engines. All new Perkins engines come with a 2 year, 2000 hour warranty. Please read our core return criteria and check out the Perkins Engine Number Guide to help you get the correct build for your machine. Always be sure to call us if you’re unsure of any information or to get a quote going. You can also fill out a quote form with all the information you currently have on your engine and we will reply very shortly with a quote or inquiring about additional info we may need. Refer to this photo of a Perkins Tag with the build list and serial number circled. This is the information we need to get you the correct build for your industrial equipment.