The O.E.M. numbers listed are cross referenced to the closest equivalent part. In some instances, the parts are not identically the same. There may be slight differences in the finished, length, washer O.D.: however, the part is designed to service the same application. This interchange is not listed in strict numerical order (from the lowest number to the highest number.) Rather it is arranged in numerically ascending order from the left regardless of the number of digits in each O.E.M. number. Thus every number that begins with a 1 is listed before any number that begins with a 2. You should key on the first four digits to locate the number. For example, 1121865 is located before 11229 and after 11189734. OEM numbers that begin with a letter precede OEM numbers that begin with a numeral.