Please have the following information available when ordering: Engine Model and Engine Serial Number. The Engine Serial number may be substituted with Motor Number or Mtr. Number. In either format the Serial Number will be six to eight digits, all numbers. The Engine Model will be in a form similar to BF4M1011F, F6L912, F3L2011, etc. All of this information will be located on the engine tag on top of the valve cover. If the tag is missing or unreadable please call our toll-free number for further guidance on where to find you engine serial number. APM offers a complete line of superior quality aftermarket replacement parts and rebuilt engines for Deutz® at a fraction of the OEM price. Contact us today for a free quote!