Análise de dados de campo MySQL

Acho que você precisa de uma maneira mais sofisticada de verificar se os Models os valores das colunas estão corretos devido aos espaços após o ponto e vírgula. Além disso, se você precisar processar os Models valores de coluna que contenham mais de dez partes, você precisará de uma sequência de números mais longa. Eu uso as INFORMATION_SCHEMA COLUMNS mesa para isso. Você também pode criar uma tabela auxiliar para isso.

SELECT
  CONCAT(
    IF(N.n = 0, '', LEFT(t.part, 2)),
    SUBSTRING_INDEX(
      SUBSTRING_INDEX(t.part, '-', N.n + 1), '-', -1
    )
  ) AS part, t.isHD, t.ID, t.GroupNumber, t.PartNo, t.Models
FROM Numbers AS N CROSS JOIN (
  SELECT
    SUBSTRING_INDEX(
      SUBSTRING_INDEX(t.part, ' ', N.n + 1), ' ', -1
    ) AS part, t.isHD, t.ID, t.GroupNumber, t.PartNo, t.Models
  FROM Numbers AS N CROSS JOIN (
    SELECT
      SUBSTRING_INDEX(
        SUBSTRING_INDEX(t.part, ';', N.n + 1), ';', -1
      ) AS part, t.isHD, t.ID, t.GroupNumber, t.PartNo, t.Models
    FROM Numbers AS N CROSS JOIN (
      SELECT
        REPLACE(
          SUBSTRING_INDEX(
            SUBSTRING_INDEX(t.part, 'LHD', N.n + 1), 'LHD', -1
          ), ',', ''
        ) AS part, IF(N.n > 0, 1, t.isHD) AS isHD,
        t.ID, t.GroupNumber, t.PartNo, t.Models
      FROM Numbers AS N CROSS JOIN (
        SELECT
          SUBSTRING_INDEX(
            SUBSTRING_INDEX(p.Models, 'RHD', N.n + 1), 'RHD', -1
          ) AS part, IF(N.n > 0, 2, 0) AS isHD,
          p.ID, p.GroupNumber, p.PartNo, p.Models
        FROM Numbers AS N CROSS JOIN parts_listing AS p
        WHERE p.Models REGEXP '[[:<:]]([LR]HD,? +)?[0-9]+(-[0-9]+)*[[:>:]]' AND
              N.n <= (LENGTH(p.Models) - LENGTH(REPLACE(p.Models, 'RHD', ''))) / 3
      ) AS t WHERE N.n <= (LENGTH(t.part) - LENGTH(REPLACE(t.part, 'LHD', ''))) / 3
    ) AS t WHERE N.n <= LENGTH(t.part) - LENGTH(REPLACE(t.part, ';', ''))
  ) AS t WHERE N.n <= LENGTH(t.part) - LENGTH(REPLACE(t.part, ' ', ''))
) AS t WHERE t.part REGEXP '^[0-9]+(-[0-9]+)*$' AND
             N.n <= LENGTH(t.part) - LENGTH(REPLACE(t.part, '-', ''));

Saída parcial (29 linhas):

+------+------+----+-------------+---------+--------------------------------------+
| part | isHD | ID | GroupNumber | PartNo  |                Models                |
+------+------+----+-------------+---------+--------------------------------------+
| 2201 |    0 |  1 | 0.000       | 391906  | 2201-02-11-20-22-32-40; 2301         |
| 2202 |    0 |  1 | 0.000       | 391906  | 2201-02-11-20-22-32-40; 2301         |
| 2211 |    0 |  1 | 0.000       | 391906  | 2201-02-11-20-22-32-40; 2301         |
| 2220 |    0 |  1 | 0.000       | 391906  | 2201-02-11-20-22-32-40; 2301         |
| 2222 |    0 |  1 | 0.000       | 391906  | 2201-02-11-20-22-32-40; 2301         |
| 2232 |    0 |  1 | 0.000       | 391906  | 2201-02-11-20-22-32-40; 2301         |
| 2240 |    0 |  1 | 0.000       | 391906  | 2201-02-11-20-22-32-40; 2301         |
| 2301 |    0 |  1 | 0.000       | 391906  | 2201-02-11-20-22-32-40; 2301         |
| 2213 |    1 |  3 | 0.000       | 399391  | LHD 2213                             |
| 2313 |    2 |  5 | 0.000       | 415245  | RHD, 2313                            |
| 2631 |    0 |  7 | 0.000       | 436803  | 2631 (BODY 2678); 5431 (BODY 5478)   |
| 5431 |    0 |  7 | 0.000       | 436803  | 2631 (BODY 2678); 5431 (BODY 5478)   |
| 2206 |    1 | 14 | 0.0015      | G179559 | LHD, 2206-13-26-33; 2302-06-13-32-33 |
| 2213 |    1 | 14 | 0.0015      | G179559 | LHD, 2206-13-26-33; 2302-06-13-32-33 |
| 2226 |    1 | 14 | 0.0015      | G179559 | LHD, 2206-13-26-33; 2302-06-13-32-33 |
| 2233 |    1 | 14 | 0.0015      | G179559 | LHD, 2206-13-26-33; 2302-06-13-32-33 |
| 2302 |    1 | 14 | 0.0015      | G179559 | LHD, 2206-13-26-33; 2302-06-13-32-33 |
| 2306 |    1 | 14 | 0.0015      | G179559 | LHD, 2206-13-26-33; 2302-06-13-32-33 |
| 2313 |    1 | 14 | 0.0015      | G179559 | LHD, 2206-13-26-33; 2302-06-13-32-33 |
| 2332 |    1 | 14 | 0.0015      | G179559 | LHD, 2206-13-26-33; 2302-06-13-32-33 |
| 2333 |    1 | 14 | 0.0015      | G179559 | LHD, 2206-13-26-33; 2302-06-13-32-33 |
| 2201 |    0 | 15 | 0.0015      | 422024  | 2201-02-11-20-22-32-40; RHD, 2301    |
| 2202 |    0 | 15 | 0.0015      | 422024  | 2201-02-11-20-22-32-40; RHD, 2301    |
| 2211 |    0 | 15 | 0.0015      | 422024  | 2201-02-11-20-22-32-40; RHD, 2301    |
| 2220 |    0 | 15 | 0.0015      | 422024  | 2201-02-11-20-22-32-40; RHD, 2301    |
| 2222 |    0 | 15 | 0.0015      | 422024  | 2201-02-11-20-22-32-40; RHD, 2301    |
| 2232 |    0 | 15 | 0.0015      | 422024  | 2201-02-11-20-22-32-40; RHD, 2301    |
| 2240 |    0 | 15 | 0.0015      | 422024  | 2201-02-11-20-22-32-40; RHD, 2301    |
| 2301 |    2 | 15 | 0.0015      | 422024  | 2201-02-11-20-22-32-40; RHD, 2301    |
+------+------+----+-------------+---------+--------------------------------------+

Demonstração do DB Fiddle .