The difference being the fourth character of the prefix. Engineering and Service numbers decode the same way. There are some exceptions, such as a whole grouping of parts or a kit. Due to this the part numbers on the part are generally Engineering numbers while the Service part number will be on the box.
The Service part number will not change with the Engineering part number unless the change affects interchangeability. This allows Ford Parts and Service to track changes affecting interchangeability by modifying the Ford Service part number. When the part is released for Service it is assigned a Service part number. When the part is redesigned the change needs to be noted so the Engineering part number is changed. The engineers will design a part and assign it an Engineering part number, which is an alphanumeric reference code. Knowing how the part number system works helped considerably.įord part numbers are divided into two main categories Engineering and Service. The entire front suspension had to be replaced, lower front control arms, spindles, rotor, strut, calipers, brake hoses. The original 1985 brake system utilized an 10" front rotor while the 1987 system is 11" increasing the swept surface area of the brakes. The front brake system currently on the car is from a 1987 Mustang. An example is my 1985 Mustang in American Sedan, generally I can use any bolt on component from 1979 through 1993 Capri or Mustang. In other words use a older or newer part from that product line of car. In SCCA Solo and Club Racing the rules often allow updating/backdating parts. Often friends will call me trying to determine Ford parts they can use or substitute. For example - "A" is for a 289/302 motor, whereas a "C" is for a 351C, 4v motor. This indicates what application the basic part is used for. This is the number that identifies what the part actually is - 2062 is a front slave cylinder, or 6268 is a timing chain set.
#1960s and 70s ford engine codes manual
Z - Ford Service Part - This came from the Engineering DepartmentĢ140 - Basic part number - 2140 is a master cylinderĬR - Design Change - indicates manual disc brakes Casting Code Definitions Example for Illustrative PurposesĬ - Decade of Manufacture - 1960's in this case They all are master cylinders however, and share a basic part number. An example could be a master cylinder - most master cylinders have a basic part number of 2140, but there a number of different master cylinders for different Ford vehicles. Ford is famous for using parts designed for one car on a variety of models.Ī basic part number is included within the casting number and indicates what the part is, not what it was made for, or when it was made.
Many Mustang parts were originally designed for the Falcon and carry a Falcon casting number. Just because a part was originally made for a Falcon doesn't mean the part came off of a Falcon. People are often confused by looking at a part or casting number. These numbers tell you what that part was originally designed for, what department designed it, and when it was designed. Many parts are too small to have the number cast or printed on it, but it still has a casting number. Those are those big long codes (C7ZZ-6540544-DR, etc) that you find that identify every Ford part made. Part numbers and casting numbers are pretty much the same when it comes to "hard parts".