We back up our products 100%. UNSURE OF PART NUMBER? If this part number is not from your original unit, a parts book or your dealer, then please check with us before finalizing your order. Please provide your Engine Serial Number – Usually located on the Engine Valve Cover or Engine Block Tag. Please let us know if there is any other parts you might need, thanks. We sell quality and competitively priced inframe kits and engine rebuild/overhaul kits for Cummins, Caterpillar, Detroit Diesel, International Navistar, Mack, John Deer, Allis Chalmers, Chrysler, Deutz, Komatsu, Mercedes Benz, Perkins, engines. We also have engine parts, overhauls and gaskets for any and all automotive brands. For any of your Automotive needs, year, make, model, engine specs and complete engine serial number will be needed. ISX along with the ESN(Engine Serial Number which is 8 digits long) and if possible the CPL(Critical Parts List). For Caterpillar- Engine FamilyI. 3406 along with the ESN(Engine Serial Number) and Arrangement Number. CONDITION; ITEM DESCRIPTION: We’ve done our best to reveal the material condition of the item. PHOTOS: We’re not professional photographers. Therefore colors may vary slightly from what you see on your screen and the item you receive. We’re not responsible for slight colors variations. If you wish to return the item you’ll need to do so in a traceable method and in the same condition as when you received it. Our products are warranted to be free from defects in material and manufacture, under normal use and service. Thank you for checking our post.