A complete seiral number for a transmission is as follows:
* □ □ □ □ ○○○○○ *
Month Code
where, ○ represents an arabic numeral, □ represents an alphabet, and represents an arabic numeral or alphabet.
The suffix is located the last portion of the part code number, and unavailable for the basic type transmission.. In
case that its structure, dimension, materials, heat treatment requirements, surface treatment and etc of part and assy
are changed on basis of the original products, the suffix shall be modified. In the codes, the English alphabets shall
be capital ones, and used in ture starting from A. To avoid the confusion, the alphabets “I”, “O” and “X” shall not be
used. When the modification makes no influence on the interchangeability, the alphabet A shall take the lead; and if
the modification makes an influence on the interchangeability, the alphabet A shall be neglected and B takes the lead.
Table 5 Characters used for designating the year
Year Code Year Code
1999 X 2015 F
2000 Y 2016 G
2001 1 2017 H
2002 2 2018 J
2003 3 2019 K
2004 4 2020 L
2005 5 2021 M
2006 6 2022 N
2007 7 2023 P
2008 8 2024 R
2009 9 2025 S
2010 A 2026 T
2011 B 2027 V
2012 C 2028 W
2013 D 2029 X
2014 E 2030 Y
Table 2 Characters used for designating the month
Month Code Month Code
January A July G
February B August H
March C September J
April D October K
May E November L
June F December M
Sequential number in this producetion month
Year Code
Suffix of Assy Part Code Nubmer
