| Unit Number | Current Status | Videos | Images |
|---|---|---|---|
| 144 001 | 55801 Converted for non-railway use Airedale General Hospital | Meadowhall Sheffield | Sheffield |
| 55824 Converted for non-railway use Platform 1, Huddersfield | |||
| 144 002 | Converted for non-railway use The Dales School, Blyth | Meadowhall Swinton (South Yorkshire) Sheffield | |
| 144 003 | Preserved Nottingham Heritage Railway | Leeds Ferriby Chapeltown | Chapeltown |
| 144 004 | Preserved Aln Valley Railway | Leeds Doncaster | |
| 144 005 | Scrapped | Darnall Sheffield | Sheffield |
| 144 006 | Preserved Cambrian Heritage Railway | Meadowhall Meadowhall Rotherham Parkgate Wakefield Westgate Hatfield & Stainforth | |
| 144 007 | Preserved Cambrian Heritage Railway | Rotherham Parkgate Ferriby Hessle | |
| 144 008 | 55808 Converted for non-railway use Fagley Primary School, Bradford | Meadowhall Meadowhall Kirkstall Forge | |
| 55831 Converted for non-railway use Corby & District modle Railway Society | |||
| 144 009 | Converted for non-railway use Greater Manchester Fire & Rescue Service | Sheffield Ramsbottom Ramsbottom | Bury Bolton Street Ramsbottom |
| 144 010 | Preserved Weardale Railway | Ferriby Kirk Sandall Conisbrough Mexborough Swinton (South Yorkshire) Bentley (South Yorkshire) Bentley (South Yorkshire) Sheffield | Leeds |
| 144 011 | Preserved Keithley & Worth Valley Railway | Doncaster Leeds Leeds Sheffield Conisbrough Mexborough Bentley (South Yorkshire) | Ingroe Yard |
| 144 012 | Scrapped | Leeds | |
| 144 013 | Preserved Telford Steam Railway | Doncaster Ferriby Hessle Hessle | |
| 144 014 | Scrapped | Meadowhall Leeds Rotherham Parkgate Rotherham Central Doncaster | |
| 144 015 | Scrapped | Barnsley Interchange | |
| 144 016 | Preserved Aln Valley Railway | Meadowhall Chapeltown Sheffield | |
| 144 017 | Preserved Appleby Frodingham Railway | Doncaster Micklefield Sheffield | |
| 144 018 | Preserved Mid Norfolk Railway | Bramley (West Yorkshire) Leeds Barnsley Interchange | |
| 144 019 | Preserved Vintage Trains - Tyseley Depot | Sheffield Sheffield | |
| 144 020 | Preserved Wensleydale Railway | Rotherham Parkgate Micklefield | Leeds |
| 144 021 | Scrapped | Apperley Bridge Hessle Hull | Leeds Hull |
| 144 022 | Preserved Keith & Dufftown Railway | Leeds Lincoln Saxilby Sheffield | |
| 144 023 | Scrapped | Rotherham Parkgate | Sheffield |