| 1 | A | B | C | D | E | F | G |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2 | BHP Newcastle 37 class - Class list |  |  |  |  |  |  |
| 3 | Locomotive | Builder's No. | Entered service | As Built Engine | Body Widened | Withdrawn | Notes |
| 4 | 37 | 2121-001 | 13 Jul 1960 | Cummins NHS 6 | Not widened | 16 Jun 1987 | Scrapped |
| 5 | 38 | 2121-001 | 18 Jul 1960 | Cummins NHS 6 | Not widened | 30 Apr 1991 | Scrapped |
| 6 | 39 | 2121-003 | 20 Jul 1960 | Cummins NHS 6 | Not widened | 30 Apr 1991 | Scrapped |
| 7 | 40 | 2121-004 | 15 Aug 1960 | Cummins NHS 6 | Not widened | 1 Nov 1982 | Scrapped |
| 8 | 41 | 2121-005 | 18 Aug 1960 | Cummins NHS 6 | Not widened | 30 Apr 1991 | Scrapped |
| 9 | 42 | 3456-006 | 24 Oct 1960 | Cummins NHS 6 | Mar 1967 | 2 Oct 1983 | Preserved Richmond Vale Railway Museum |
| 10 | 43 | 3456-007 | 24 Oct 1960 | Cummins NHS 6 | Jan 1968 | ? | Preserved Richmond Vale Railway Museum |
| 11 | 44 | 3456-008 | 10 Nov 1960 | Cummins NHS 6 | Feb 1968 | 26 May 1983 | Scrapped |
| 12 | 45 | 3456-009 | 14 Nov 1960 | Cummins NHS 6 | Jan 1966 | 2 Jan 1982 | Scrapped |
| 13 | 46 | 3456-010 | 1 Dec 1960 | Cummins NHS 6 | Apr 1966 | 11 Jan 1982 | Scrapped |
| 14 | 47 | 3456-011 | 8 Dec 1960 | Cummins NHS 6 | Oct 1966 | 1 Jul 1991 | Preserved Dorrigo Steam Railway & Museum |
| 15 | 48 | 4970-012 | 22 Sep 1961 | Rolls Royce C6TFL | Aug 1966 | 30 Sep 1999 | Sold Manildra Group Dec 2002 as MM04 |
| 16 | 49 | 4970-013 | 29 Sep 1961 | Rolls Royce C6TFL | Feb 1966 | 30 Sep 1999 | Sold Loongana Lime Sep 2002 |
| 17 | 50 | 4970-014 | 14 Oct 1961 | Rolls Royce C6TFL | Dec 1967 | 30 Sep 1999 | Sold Loongana Lime Feb 2002 |
| 18 | 51 | 4970-015 | 3 Nov 1961 | Rolls Royce C6TFL | Oct 1967 | 30 Sep 1999 | Sold Manildra Group Dec 2002 as MM03 |
| 19 | 52 | 4970-016 | 14 Dec 1961 | Rolls Royce C6TFL | Sep 1966 | 1 Jan 1988 | Preserved Dorrigo Steam Railway & Museum |
| 20 | 53 | 9211-018 | 16 Apr 1964 | Rolls Royce C6TFL | Jun 1967 | 30 Sep 1999 | Preserved Richmond Vale Railway Museum |
| 21 | 54 | 3835-020 | 5 Jan 1966 | Cummins NHS 6 | built wide | 30 Sep 1999 | Preserved Richmond Vale Railway Museum |
| 22 | 55 | 3275-051 | 8 Sep 1977 | Cummins NT855L4 | built wide | 30 Sep 1999 | Sold Junee Railway Workshop Jul 2002 |
| 23 | 56 | 2967-052 | 11 Nov 1977 | Cummins NT855L4 | Narrow body | 1 Jun 1988 | Scrapped |
| 24 | 57 | 6606-182-057 | 13 Dec 1982 | Cummins NT855L4 | built wide | 30 Sep 1999 | Sold Junee Railway Workshop Jul 2002 |
| 25 | 58 | 6606-182-058 | 13 Apr 1983 | Cummins NT855L4 | built wide | 30 Sep 1999 | Sold Heggies Bulk Haul, Port Kembla 4 Oct 1999, renumbered HBL58, sold to Manildra Group |

Question: When was that Cummins engine model discontinued?
Answer: The locos powered with Cummins NT855 engines were either scrapped or sold.