The London, Midland and Scottish Railway (LMS) pioneered the use of diesel shunting locomotives in Great Britain. The variety of experimental and production diesel shunters produced by the LMS is summarised below. In each heading, the first number(s) carried are shown first, with subsequent renumbering(s) following the "/".

1831

This was the original experimental shunter, nominally rebuilt from a Midland Railway steam locomotive, whose number it inherited (1831), though very little of the steam locomotive was actually re-used.

7400 / 7050

7401 / 7051

7402 / 7052

7403 / 7053

7404 / 7054

7405-7406 / 7055-7056

7407 / 7057

7408 / 7058 / 13000

Although allocated number 13000 by British Rail, it was withdrawn before the number could be applied, and 13000 was used instead for the first of the British Rail Class 08 shunters.

7059-7068

7069-7129 / 12000-12042

Details of the four classes allocated numbers in this range are included on other pages, as follows:

• 7069-7078 / 12000-12001 : British Rail Class D3/6
• 7079 / 12002 : British Rail Class D3/6
• 7080-7119 / 12003-12032 : British Rail Class D3/7
• 7120-7129 / 12033-12042 : British Rail Class D3/8 (Later TOPS Class 11)

NB: Production of the last-mentioned class continued after Nationalisation, with the following two locomotives emerging as M7130 and M7131 (later 12043/12044) and the remainder carring BR numbers 12045-12138 from new. Although allocated TOPS Class 11, none of these locomotives were renumbered. When 12082 was re-registered for use on the mainline, it was allocated TOPS number 01553 in the ex-industrial registered shunters list.

Departmental 5519 / ZM9

Departmental 2 / ED1

This locomotive was very similar to the Great Western Railway's diesel locomotine number 1.

Unnumbered Plant Locomotives

Trial Locomotives

The LMS used a number of locomotives on loan from their manufacturers for trials. These locomotives were not allocated LMS numbers, and details of their use and disposal are sketchy. Such locomotives included:

• Vulcan - a diesel-mechanical 0-6-0 shunter bult at the Vulcan Foundry, Newton-le-Willows, in 1936. It had a Vulcan-Frichs 6-cylinder 275hp diesel engine. After loan to the LMS, it was used by the War Department, which numbered it 75 (later 70075). Following the end of World War II, it found industrial use in Yugoslavia.

• (Unnumbered) - an Armstrong-Whitworth/Sulzer shunter, which was an earlier version of the LMS's own 7408. This locomotive was also loaned to the London and North Eastern Railway for trials.