| Number | Type | Lot No. | Diagram (New/Gangwayed) |
Seats (New/Gangwayed) |
Weight | TOPS |
| W50050 - 50091 | DMBS | 30211 | 553 / 853 | 65 2nd | 36 tons | 116/2 |
| W50092 - 50133 | DMS | 30213 | 554 / 854 | 95/89 2nd | 36 tons | 116/1 |
| W50818 - 50870 | DMBS | 30363 | 553 / 853 | 65 2nd | 36 tons | 116/2 |
| W50871 - 50923 | DMS | 30364 | 554 / 854 | 95/89 2nd | 36 tons | 116/1 |
| W51128 - 51140 | DMBS | 30446 | 553 / 853 | 65 2nd | 36 tons | 116/2 |
| W51141 - 51153 | DMS | 30447 | 554 / 854 | 95/89 2nd | 36 tons | 116/1 |
| W59000 - 59031 | TC | 30212 | 555 / 855 | 28/20 1st + 74/68 2nd | 28t 10c | 175 |
| W59032 - 59041 | TS | 30385 | 600 / 856 | 106 2nd | 29 tons | 172 |
| W59326 - 59376 | TC | 30365 | 555 / 855 | 28/20 1st + 74/68 2nd | 28t 10c | 175 |
| W59438 - 59448 | TC | 30448 | 555 / 855 | 28/20 1st + 74/68 2nd | 28t 10c | 175 |
In common with other DMU types, the TOPS numbers were rationalised leaving them all as just Class 116s by 1980, and in 1983 the surviving cars in the 50xxx were numbered in the 53xxx range to avoid clashing with Class 50 locomotives.
| Original Formations | |||||||||
|
DMBS |
Trailers |
DMS |
|||||||
|
Batch One |
50050 - 50091 |
(42) |
TC |
59000 - 59031 |
(32) |
50092 - 50133 |
(42) |
||
|
(1957) |
TS |
59032 - 59041 |
(10) |
||||||
|
Batch Two |
50818 - 50870 |
(53) |
TC |
59326 - 59376 |
(51) |
50871 - 50923 |
(53) |
||
|
Batch Three |
51128 - 51140 |
(13) |
TC |
59438 - 59448 |
(11) |
51141 - 51153 |
(13) |
||
You will see that there are differing number of power cars and trailers in the second/third batches. They were delivered as 3-cars until the last two pairs in both cases.