6Dg Locos are ex SM42 or SP42 but Modernised by Newag from 2007-2022 with a CAT C27 Low emission engine of 949hp capable of 90km/h.
SU4210 Locos are ex SM42 but Modernised by Newag from 2014-2015 with a CAT C18 Low emission engine of 1500hp capable of 90km/h

​SU42-502

92 51 5 620 002-2 PL-PREG
​Previous Numbers  SP42-049
Dud For Haulage ​

SM42-069

98 51 8 620 778-5 PL-PKPIC

SM42-084

98 51 8 620 779-3 PL-PKPIC
Dud For Haulage ​

SU42-501

92 51 5 620 001-4 PL-PREG
​Previous Numbers  SP42-085
Dud For Haulage ​

SM42-3005

98 51 8 620 781-9 PL-PKPIC
​Previous Numbers  SM42-121 / SU42-121 / SM42-121​

SM42-146

98 51 8 620 783-5 PL-PKPIC
​Dud For Haulage ​

SM42-184

Scrapped

​SU42-534

92 51 5 620 001-4 PL-PREG
​Previous Numbers  SP42-194
Dud For Haulage ​

SM42-221

98 51 8 621 011-0 PL-PREG
​Dud For Haulage 

​SU42-525

Previous Numbers  SP42-239
Dud For Haulage 
​Scrapped 06/2017

SM42-351

98 51 8 620 795-9 PL-PKPIC
​Dud For Haulage 

SM42-403

98 51 8 620 800-7 PL-PKPIC
Dud For Haulage 

SU4210-006

98 51 8 630 090-9 PL-PKPIC
​Previous Numbers  SM42-419(98 51 8 620 801-5) / SU42-1006
Dud For Haulage 

SM42-3102

98 51 8 620 804-9 PL-PKPIC
​Previous Numbers  SM42-479
Dud For Haulage ​

6Dg-145

​​Previous Numbers  SP42-040 / SU42-539

6Dg-179

92 51 3 620 603-2 PL-KLP
​Previous Numbers  SP42-267 / SU42-540

SM42-546

98 51 8 620 810-2 PL-PKPIC

SM42-3002

98 51 8 620 811-4 PL-PKPIC
​Previous Numbers  SM42-561

SU4210-001

98 51 5 630 085-9 PL-PKPIC
​Previous Numbers  SM42-576 / SU42-1001

SM42-600

98 51 8 620 347-9 PL-PKPC

SM42-631

98 51 8 620 363-6 PL-PKPC

SU4210-002

98 51 5 630 086-7 PL-PKPIC
​Previous Numbers  SM42-643 / SU42-1002
Dud For Haulage ​

SM42-1316

92 51 3 620 251-0 PL-PKPC
​Previous Numbers  SM42-795

SM42-1278

92 51 3 620 194-2 PL-PKPC
​Previous Numbers  SM42-832

SM42-876

98 51 8 620 436-0 PL-PKPC

SM42-1299

92 51 3 620 227-0 PL-PKPC
​Previous Numbers  SM42-898

SM42-1318

92 51 3 620 248-6 PL-PKPC
​Previous Numbers  SM42-925

SM42-928

98 51 8 620 200-0 PL-PKPC

SM42-1279

92 51 3 620 195-9 PL-PKPC
​Previous Numbers  SM42-974

SM42-991

98 51 8 620 483-2 PL-PKPC
Scrapped 02/2022

SM42-1276

92 51 3 620 192-6 PL-PKPC
​Previous Numbers  SM42-994

SM42-1249

92 51 3 620 146-2 PL-PKPC
​Previous Numbers  SM42-1007

SM42-1015

98 51 8 620 492-3 PL-PKPC

SM42-1053

98 51 8 620 519-3 PL-PKPC

SM42-1095

98 51 8 620 553-2 PL-PKPC

SM42-1306

​92 51 3 620 235-3 PL-PKPC
​Previous Numbers  SM42-1137

SM42-2015

98 51 8 621 148-0 PL-TRAPL

6Dg-026

92 51 3 620 080-3 PL-PNUIK
​Previous Numbers  SM42-2137

6Dh-8578

92 51 3 620 104-1 PL-PNI
​Previous Numbers  SM42-2178 / SM42-8578

SM42-2292

92 51 3 620 202-3 PL-ZPNT

SM42-2390

98 51 8 621 033-4 PL-WISKO

SM42-2410

92 51 3 620 132-2 PL-ECCOR

SM42-2471

92 51 3 620 425-0 PL-OMNL

SM42-2504

6Dh-2543

92 51 3 620 474-8 PL-ZPNT
​​Previous Numbers  SM42-2543

6Dg-149

92 51 3 620 340-1 PL-LOTOS
​Previous Numbers  SM42-2574

SM42-2626

92 51 3 620 588-5 PL-TRSOD

SM42-2657

98 51 8 620 773-8 PL-KWB

SM42's Dud For Sight

SP42-049(SU42-502)  069  073  084  SP42-085(SU42-501)  102  121(3005)  146  179  184  SP42-194(SU42-534)  221  SP42-239(SU42-525)  254  290  300  330  342  349  350  351  403  419(SU42-1006/SU4210-006)  428  446  479(3102)  482  502  523  532  539  SP42-040/SU42-539(6Dg-145)  SP42-267/SU42-540(6Dg-179)  546  561(3002)  576(SU42-1001/SU4210-001)  615  630  631  643(SU42-1002/SU4210-002)  656  692  722  734  739  795(1316)  815  821  827  832(1278)  857  871(1265)  875(1297)  876  878  891  898(1299)  923   925(1318)  927(1300)  928  951  974(1279)  991  994(1276)  999(1282)  1007(1249)  1015  1053  1059  1068  1070  1072  1088  1095  1096  1100  1125  1136  1137(1306)  1148  2015  2079  2137(6Dg-026)  2164  2178(8578)  2183  2292  2303  2351  2355(6Dg-148)  2376(6Dg-168)  2390  2410  2442  2471  2504  2543  2574(6Dg149)  2599  2609  2613  2626  2657